Dr. Neal A. Trappe Profile

Dr. Neal A. Trappe

Senior Lecturer at National Univ of Ireland Maynooth

SPIE Involvement:

Conference Program Committee | Author

Publications (49)

Proceedings Article | 16 August 2024 Presentation + Paper

Presentation + Paper

BISOU: a balloon pathfinder for CMB spectral distortions studies

B. Maffei, N. Aghanim, J. Aumont, E. Battistelli, A. Beelen, A. Besnard, B. Borgo, M. Calvo, A. Catalano, J. Chluba, X. Coulon, P. De Bernardis, C. de Jabrun, M. Douspis, J. Errard, J. Grain, P. Guiot, J. Hill, H. Ishino, A. Kogut, G. Lagache, J. Macias-Perez, S. Masi, T. Matsumura, A. Monfardini, C. O'Sullivan, L. Pagano, G. Patanchon, G. Pisano, L. Pitre, N. Ponthieu, M. Remazeilles, A. Ritacco, G. Savini, V. Sauvage, A. Shitvov, S. Stever, A. Tartari, L. Thiele, N. Trappe, J.-F. Aubrun, N. Bray, S. Louvel

Proceedings Volume 13102, 131020N (2024) https://doi.org/10.1117/12.3018371

KEYWORDS: Equipment, Balloons, Sensors, Windows, Photons, Fourier transforms, Calibration, Telescopes, Space operations, Instrument modeling

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Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

Development of a Fourier transform spectrometer for the calibration of THz on-chip spectrometers

Dale Mercado, Serena Tramm, Ryan Wills, Michael Zemcov, Peter Barry, Elyssa Brooks, Jeffrey Filippini, Marcin Gradziel, Rong Nie, Erik Shirokoff, Neal Trappe

Proceedings Volume 12190, 121902D (2022) https://doi.org/10.1117/12.2630221

KEYWORDS: Fourier transforms, Spectroscopy, Cryogenics, Mirrors, Beam splitters, Calibration, Sensors, Far infrared, Waveguides, Terahertz radiation

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Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

BISOU: a balloon project for spectral observations of the early universe

Bruno Maffei, Nabila Aghanim, Jonathan Aumont, Elia Battistelli, Jens Chluba, Xavier Coulon, Paolo De Bernardis, Marian Douspis, Julien Grain, J. Hill, Alan Kogut, Joseph Kuruvilla, Guilaine Lagache, Juan Macias-Perez, Silvia Masi, Tomotake Matsumura, Lorenzo Mele, Alessandro Monfardini, Créidhe O'Sullivan, Luca Pagano, Giampaolo Pisano, Nicolas Ponthieu, Mathieu Remazeilles, Alessia Ritacco, Aditya Rotti, Giorgio Savini, Valentin Sauvage, Alexey Shitvov, Samantha Stever, Andrea Tartari, Leander Thiele, Neal Trappe, Jean-François Aubrun, André Laurens, Dominique Pheav, François Vacher

Proceedings Volume 12190, 121900A (2022) https://doi.org/10.1117/12.2630136

KEYWORDS: Calibration, Fourier transforms, Space operations, Polarization, Black bodies, Telescopes, Spectroscopy, Instrument modeling

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Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

Optical analysis of BISOU: a balloon project to measure the CMB spectral distortions

N. Trappe, C. O'Sullivan, B. Maffei, N. Aghanim, M. Abitol, E. Battistelli, J. Chluba, X. Coulon, P. de Bernardis, C. Hill, A. Kogut, S. Masi, L. Pagano, A. Rotti, G. Savini, A. Tartari

Proceedings Volume 12190, 121901Q (2022) https://doi.org/10.1117/12.2629286

KEYWORDS: Wave propagation, Fourier transforms, Optical analysis, Waveguides, Waveguide modes, Sensors, Mirrors, Telescopes, Space operations, Optical design

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Proceedings Article | 31 August 2022 Poster + Presentation + Paper

Poster + Presentation + Paper

Optical modeling for the LiteBIRD Medium and High Frequency Telescope

L. Lamagna, C. Franceschet, M. De Petris, J. Gudmundsson, P. Hargrave, B. Maffei, F. Noviello, C. O'Sullivan, A. Paiella, F. Columbro, J. Austermann, M. Bersanelli, A. Chahadih, M. Cicuttin, L. Clermont, P. de Bernardis, K. Fleury-Frenette, M. Georges, C. Geuzaine, J. Hastanin, S. Henrot-Versillé, J. Hubmayr, G. Jaehnig, R. Keskitalo, S. Masi, F. Matsuda, T. Matsumura, L. Montier, B. Mot, F. Piacentini, G. Pisano, J. Y. Plesseria, A. Ritacco, G. Savini, A. Shitvov, A. Suzuki, N. Trappe, B. Winter

Proceedings Volume 12190, 121901R (2022) https://doi.org/10.1117/12.2629271

KEYWORDS: Telescopes, Polarization, Optical simulations, Physics, Sensors, Device simulation, Beam shaping, Signal detection, Optical instrument design, Calibration

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Proceedings Article | 21 December 2020 Presentation + Paper

Presentation + Paper

LiteBIRD satellite: JAXA's new strategic L-class mission for all-sky surveys of cosmic microwave background polarization

M. Hazumi, P.A.R. Ade, A. Adler, E. Allys, K. Arnold, D. Auguste, J. Aumont, R. Aurlien, J. Austermann, C. Baccigalupi, A. Banday, R. Banjeri, R. Barreiro, S. Basak, J. Beall, D. Beck, S. Beckman, J. Bermejo, P. de Bernardis, M. Bersanelli, J. Bonis, J. Borrill, F. Boulanger, S. Bounissou, M. Brilenkov, M. Brown, M. Bucher, E. Calabrese, P. Campeti, A. Carones, F. Casas, A. Challinor, V. Chan, K. Cheung, Y. Chinone, J. Cliche, L. Colombo, F. Columbro, J. Cubas, A. Cukierman, D. Curtis, G. D'Alessandro, N. Dachlythra, M. De Petris, C. Dickinson, P. Diego-Palazuelos, M. Dobbs, T. Dotani, L. Duband, S. Duff, J. Duval, K. Ebisawa, T. Elleflot, H. Eriksen, J. Errard, T. Essinger-Hileman, F. Finelli, R. Flauger, C. Franceschet, U. Fuskeland, M. Galloway, K. Ganga, J. Gao, R. Genova-Santos, M. Gerbino, M. Gervasi, T. Ghigna, E. Gjerløw, M. Gradziel, J. Grain, F. Grupp, A. Gruppuso, J. Gudmundsson, T. de Haan, N. Halverson, P. Hargrave, T. Hasebe, M. Hasegawa, M. Hattori, S. Henrot-Versillé, D. Herman, D. Herranz, C. Hill, G. Hilton, Y. Hirota, E. Hivon, R. Hlozek, Y. Hoshino, E. de la Hoz, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, K. Ishimura, H. Ishino, G. Jaehnig, T. Kaga, S. Kashima, N. Katayama, A. Kato, T. Kawasaki, R. Keskitalo, T. Kisner, Y. Kobayashi, N. Kogiso, A. Kogut, K. Kohri, E. Komatsu, K. Komatsu, K. Konishi, N. Krachmalnicoff, I. Kreykenbohm, C. L. Kuo, A. Kushino, L. Lamagna, J. Lanen, M. Lattanzi, A. Lee, C. Leloup, F. Levrier, E. Linder, T. Louis, G. Luzzi, T. Maciaszek, B. Maffei, D. Maino, M. Maki, S. Mandelli, E. Martinez-Gonzalez, S. Masi, T. Matsumura, A. Mennella, M. Migliaccio, Y. Minami, K. Mitsuda, J. Montgomery, L. Montier, G. Morgante, B. Mot, Y. Murata, J. Murphy, M. Nagai, Y. Nagano, T. Nagasaki, R. Nagata, S. Nakamura, T. Namikawa, P. Natoli, S. Nerval, T. Nishibori, H. Nishino, F. Noviello, C. O'Sullivan, H. Ogawa, S. Oguri, H. Ohsaki, I. Ohta, N. Okada, L. Pagano, A. Paiella, D. Paoletti, G. Patanchon, J. Peloton, F. Piacentini, G. Pisano, G. Polenta, D. Poletti, T. Prouvé, G. Puglisi, D. Rambaud, C. Raum, S. Realini, M. Reinecke, M. Remazeilles, A. Ritacco, G. Roudil, J. Rubino-Martin, M. Russell, H. Sakurai, Y. Sakurai, M. Sandri, M. Sasaki, G. Savini, D. Scott, J. Seibert, Y. Sekimoto, B. Sherwin, K. Shinozaki, M. Shiraishi, P. Shirron, G. Signorelli, G. Smecher, S. Stever, R. Stompor, H. Sugai, S. Sugiyama, A. Suzuki, J. Suzuki, T. Svalheim, E. Switzer, R. Takaku, H. Takakura, S. Takakura, Y. Takase, Y. Takeda, A. Tartari, E. Taylor, Y. Terao, H. Thommesen, K. Thompson, B. Thorne, T. Toda, M. Tomasi, M. Tominaga, N. Trappe, M. Tristram, M. Tsuji, M. Tsujimoto, C. Tucker, J. Ullom, G. Vermeulen, P. Vielva, F. Villa, M. Vissers, N. Vittorio, I. Wehus, J. Weller, B. Westbrook, J. Wilms, B. Winter, E. Wollack, N. Yamasaki, T. Yoshida, J. Yumoto, M. Zannoni, A. Zonca

Proceedings Volume 11443, 114432F (2020) https://doi.org/10.1117/12.2563050

KEYWORDS: Polarization, Satellites, Microwave radiation, Telescopes, Algorithm development, Refractor telescopes, Rockets, Quantum physics, Astrophysics, Spatial resolution

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Proceedings Article | 16 December 2020 Presentation + Paper

Presentation + Paper

Concept design of low frequency telescope for CMB B-mode polarization satellite LiteBIRD

Y. Sekimoto, P. A. Ade, A. Adler, E. Allys, K. Arnold, D. Auguste, J. Aumont, R. Aurlien, J. Austermann, C. Baccigalupi, A. Banday, R. Banerji, R. Barreiro, S. Basak, J. Beall, D. Beck, S. Beckman, J. Bermejo, P. de Bernardis, M. Bersanelli, J. Bonis, J. Borrill, F. Boulanger, S. Bounissou, M. Brilenkov, M. Brown, M. Bucher, E. Calabrese, P. Campeti, A. Carones, F. Casas, A. Challinor, V. Chan, K. Cheung, Y. Chinone, J. F. Cliche, L. Colombo, F. Columbro, J. Cubas, A. Cukierman, D. Curtis, G. D'Alessandro, N. Dachlythra, M. De Petris, C. Dickinson, P. Diego-Palazuelos, M. Dobbs, T. Dotani, L. Duband, S. Duff, J. M. Duval, K. Ebisawa, T. Elleflot, H. Eriksen, J. Errard, T. Essinger-Hileman, F. Finelli, R. Flauger, C. Franceschet, U. Fuskeland, M. Galloway, K. Ganga, J. R. Gao, R. Genova-Santos, M. Gerbino, M. Gervasi, T. Ghigna, E. Gjerløw, M. Gradziel, J. Grain, F. Grupp, A. Gruppuso, J. Gudmundsson, T. de Haan, N. Halverson, P. Hargrave, T. Hasebe, M. Hasegawa, M. Hattori, M. Hazumi, S. Henrot-Versillé, D. Herman, D. Herranz, C. Hill, G. Hilton, Y. Hirota, E. Hivon, R. Hlozek, Y. Hoshino, E. de la Hoz, J. Hubmayr, K. Ichiki, T. iida, H. Imada, K. Ishimura, H. Ishino, G. Jaehnig, T. Kaga, S. Kashima, N. Katayama, A. Kato, T. Kawasaki, R. Keskitalo, T. Kisner, Y. Kobayashi, N. Kogiso, A. Kogut, K. Kohri, E. Komatsu, K. Komatsu, K. Konishi, N. Krachmalnicoff, I. Kreykenbohm, C. L. Kuo, A. Kushino, L. Lamagna, J. Lanen, M. Lattanzi, A. Lee, C. Leloup, F. Levrier, E. Linder, T. Louis, G. Luzzi, T. Maciaszek, B. Maffei, D. Maino, M. Maki, S. Mandelli, E. Martinez-Gonzalez, S. Masi, T. Matsumura, A. Mennella, M. Migliaccio, Y. Minanmi, K. Mitsuda, J. Montgomery, L. Montier, G. Morgante, B. Mot, Y. Murata, J. A. Murphy, M. Nagai, Y. Nagano, T. Nagasaki, R. Nagata, S. Nakamura, T. Namikawa, P. Natoli, S. Nerval, T. Nishibori, H. Nishino, C. O'Sullivan, H. Ogawa, S. Oguri, H. Ohsaki, I. Ohta, N. Okada, L. Pagano, A. Paiella, D. Paoletti, G. Patanchon, J. Peloton, F. Piacentini, G. Pisano, G. Polenta, D. Poletti, T. Prouvé, G. Puglisi, D. Rambaud, C. Raum, S. Realini, M. Reinecke, M. Remazeilles, A. Ritacco, G. Roudil, J. A. Rubino-Martin, M. Russell, H. Sakurai, Y. Sakurai, M. Sandri, M. Sasaki, G. Savini, D. Scott, J. Seibert, B. Sherwin, K. Shinozaki, M. Shiraishi, P. Shirron, G. Signorelli, G. Smecher, S. Stever, R. Stompor, H. Sugai, S. Sugiyama, A. Suzuki, J. Suzuki, T. Svalheim, E. Switzer, R. Takaku, H. Takakura, S. Takakura, Y. Takase, Y. Takeda, A. Tartari, E. Taylor, Y. Terao, H. Thommesen, K. Thompson, B. Thorne, T. Toda, M. Tomasi, M. Tominaga, N. Trappe, M. Tristram, M. Tsuji, M. Tsujimoto, C. Tucker, J. Ullom, G. Vermeulen, P. Vielva, F. Villa, M. Vissers, N. Vittorio, I. Wehus, J. Weller, B. Westbrook, J. Wilms, B. Winter, E. Wollack, N. Yamasaki, T. Yoshida, J. Yumoto, M. Zannoni, A. Zonca

Proceedings Volume 11453, 1145310 (2020) https://doi.org/10.1117/12.2561841

KEYWORDS: Telescopes, Polarization, Optical instrument design, Satellites, Stray light, Antennas, Reflectors, Microwave radiation, Spatial resolution, Diffraction

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Proceedings Article | 15 December 2020 Presentation + Paper

Presentation + Paper

Overview of the medium and high frequency telescopes of the LiteBIRD space mission

L. Montier, B. Mot, P. de Bernardis, B. Maffei, G. Pisano, F. Columbro, J. Gudmundsson, S. Henrot-Versillé, L. Lamagna, J. Montgomery, T. Prouvé, M. Russell, G. Savini, S. Stever, K. Thompson, M. Tsujimoto, C. Tucker, B. Westbrook, P. A. R. Ade, A. Adler, E. Allys, K. Arnold, D. Auguste, J. Aumont, R. Aurlien, J. Austermann, C. Baccigalupi, A. Banday, R. Banerji, R. Barreiro, S. Basak, J. Beall, D. Beck, S. Beckman, J. Bermejo, M. Bersanelli, J. Bonis, J. Borrill, F. Boulanger, S. Bounissou, M. Brilenkov, M. Brown, M. Bucher, E. Calabrese, P. Campeti, A. Carones, F. Casas, A. Challinor, V. Chan, K. Cheung, Y. Chinone, J. Cliche, L. Colombo, J. Cubas, A. Cukierman, D. Curtis, G. D'Alessandro, N. Dachlythra, M. De Petris, C. Dickinson, P. Diego-Palazuelos, M. Dobbs, T. Dotani, L. Duband, S. Duff, J. Duval, K. Ebisawa, T. Elleflot, H. Eriksen, J. Errard, T. Essinger-Hileman, F. Finelli, R. Flauger, C. Franceschet, U. Fuskeland, M. Galloway, K. Ganga, J. Gao, R. Genova-Santos, M. Gerbino, M. Gervasi, T. Ghigna, E. Gjerløw, M. Gradziel, J. Grain, F. Grupp, A. Gruppuso, T. de Haan, N. Halverson, P. Hargrave, T. Hasebe, M. Hasegawa, M. Hattori, M. Hazumi, D. Herman, D. Herranz, C. Hill, G. Hilton, Y. Hirota, E. Hivon, R. Hlozek, Y. Hoshino, E. de la Hoz, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, K. Ishimura, H. Ishino, G. Jaehnig, T. Kaga, S. Kashima, N. Katayama, A. Kato, T. Kawasaki, R. Keskitalo, T. Kisner, Y. Kobayashi, N. Kogiso, A. Kogut, K. Kohri, E. Komatsu, K. Komatsu, K. Konishi, N. Krachmalnicoff, I. Kreykenbohm, C. Kuo, A. Kushino, J. Lanen, M. Lattanzi, A. Lee, C. Leloup, F. Levrier, E. Linder, T. Louis, G. Luzzi, T. Maciaszek, D. Maino, M. Maki, S. Mandelli, E. Martinez-Gonzalez, S. Masi, T. Matsumura, A. Mennella, M. Migliaccio, Y. Minami, K. Mitsuda, G. Morgante, Y. Murata, J. Murphy, M. Nagai, Y. Nagano, T. Nagasaki, R. Nagata, S. Nakamura, T. Namikawa, P. Natoli, S. Nerval, T. Nishibori, H. Nishino, C. O'Sullivan, H. Ogawa, S. Oguri, H. Ohsaki, I. Ohta, N. Okada, L. Pagano, A. Paiella, D. Paoletti, G. Patanchon, J. Peloton, F. Piacentini, G. Polenta, D. Poletti, G. Puglisi, D. Rambaud, C. Raum, S. Realini, M. Reinecke, M. Remazeilles, A. Ritacco, G. Roudil, J. Rubino-Martin, H. Sakurai, Y. Sakurai, M. Sandri, M. Sasaki, D. Scott, J. Seibert, Y. Sekimoto, B. Sherwin, K. Shinozaki, M. Shiraishi, P. Shirron, G. Signorelli, G. Smecher, R. Stompor, H. Sugai, S. Sugiyama, A. Suzuki, J. Suzuki, T. Svalheim, E. Switzer, R. Takaku, H. Takakura, S. Takakura, Y. Takase, Y. Takeda, A. Tartari, E. Taylor, Y. Terao, H. Thommesen, B. Thorne, T. Toda, M. Tomasi, M. Tominaga, N. Trappe, M. Tristram, M. Tsuji, J. Ullom, G. Vermeulen, P. Vielva, F. Villa, M. Vissers, N. Vittorio, I. Wehus, J. Weller, J. Wilms, B. Winter, E. Wollack, N. Yamasaki, T. Yoshida, J. Yumoto, M. Zannoni, A. Zonca

Proceedings Volume 11443, 114432G (2020) https://doi.org/10.1117/12.2562243

KEYWORDS: Telescopes, Space operations, Refractor telescopes, Sensors, Microwave radiation, Polarization, Cryogenics, Wave plates, Optical components, Lenses

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

The optical design of the Litebird middle and high frequency telescope

L. Lamagna, J. Gudmundsson, H. Imada, P. Hargrave, C. Franceschet, M. De Petris, J. Austermann, S. Bounissou, F. Columbro, P. de Bernardis, S. Henrot-Versillé, J. Hubmayr, G. Jaehnig, R. Keskitalo, B. Maffei, S. Masi, T. Matsumura, L. Montier, B. Mot, F. Noviello, C. O'Sullivan, A. Paiella, G. Pisano, S. Realini, A. Ritacco, G. Savini, A. Suzuki, N. Trappe, B. Winter

Proceedings Volume 11443, 1144370 (2020) https://doi.org/10.1117/12.2579233

KEYWORDS: Telescopes, Optical design, Refractor telescopes, Polarization, Performance modeling, Optical simulations, Microwave radiation, Device simulation, Control systems

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Proceedings Article | 9 August 2018 Presentation + Paper

Presentation + Paper

Concept design of the LiteBIRD satellite for CMB B-mode polarization

Y. Sekimoto, P. Ade, K. Arnold, J. Aumont, J. Austermann, C. Baccigalupi, A. Banday, R. Banerji, S. Basak, S. Beckman, M. Bersanelli, J. Borrill, F. Boulanger, M. Brown, M. Bucher, E. Calabrese, A. Challinor, Y. Chinone, F. Columbro, A. Cukierman, D. Curtis, P. de Bernardis, M. de Petris, M. Dobbs, T. Dotani, L. Duband, A. Ducout, K. Ebisawa, T. Elleflot, H. Eriksen, J. Errard, R. Flauger, C. Franceschet, U. Fuskeland, K. Ganga, J.R. Gao, T. Ghigna, J. Grain, A. Gruppuso, N. Halverson, P. Hargrave, T. Hasebe, M. Hasegawa, M. Hattori, M. Hazumi, S. Henrot-Versille, C. Hill, Y. Hirota, E. Hivon, D. T. Hoang, J. Hubmayr, K. Ichiki, H. Imada, H. Ishino, G. Jaehnig, H. Kanai, S. Kashima, Y. Kataoka, N. Katayama, T. Kawasaki, R. Keskitalo, A. Kibayashi, T. Kikuchi, K. Kimura, T. Kisner, Y. Kobayashi, N. Kogiso, K. Kohri, E. Komatsu, K. Komatsu, K. Konishi, N. Krachmalnicoff, C. L. Kuo, N. Kurinsky, A. Kushino, L. Lamagna, A. Lee, E. Linder, B. Maffei, M. Maki, A. Mangilli, E. Martinez-Gonzalez, S. Masi, T. Matsumura, A. Mennella, Y. Minami, K. Mistuda, D. Molinari, L. Montier, G. Morgante, B. Mot, Y. Murata, A. Murphy, M. Nagai, R. Nagata, S. Nakamura, T. Namikawa, P. Natoli, T. Nishibori, H. Nishino, F. Noviello, C. O'Sullivan, H. Ochi, H. Ogawa, H. Ohsaki, I. Ohta, N. Okada, G. Patanchon, F. Piacentini, G. Pisano, G. Polenta, D. Poletti, G. Puglisi, C. Raum, S. Realini, M. Remazeilles, H. Sakurai, Y. Sakurai, G. Savini, B. Sherwin, K. Shinozaki, M. Shiraishi, G. Signorelli, G. Smecher, R. Stompor, H. Sugai, S. Sugiyama, A. Suzuki, J. Suzuki, R. Takaku, H. Takakura, S. Takakura, E. Taylor, Y. Terao, K. Thompson, B. Thorne, M. Tomasi, H. Tomida, N. Trappe, M. Tristram, M. Tsuji, M. Tsujimoto, S. Uozumi, S. Utsunomiya, N. Vittorio, N. Watanabe, I. Wehus, B. Westbrook, B. Winter, R. Yamamoto, N. Yamasaki, M. Yanagisawa, T. Yoshida, J. Yumoto, M. Zannoni, A. Zonca

Proceedings Volume 10698, 106981Y (2018) https://doi.org/10.1117/12.2313432

KEYWORDS: Telescopes, Polarization, Space telescopes, Fermium, Frequency modulation, Cryogenics, Physics, Antennas, Mirrors, Satellites

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

The SAFARI detector system

Michael Audley, Gert de Lange, Jian-Rong Gao, Brian Jackson, Richard Hijmering, Marcel Ridder, Marcel Bruijn, Peter Roelfsema, Peter A. Ade, Stafford Withington, Charles Bradford, Neal Trappe

Proceedings Volume 10708, 107080K (2018) https://doi.org/10.1117/12.2313361

KEYWORDS: Sensors, Bolometers, Spectroscopy, Multiplexing, Space telescopes, Spectroscopes, Spectral resolution, Electronics

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Proceedings Article | 9 July 2018 Paper

Paper

Next generation sub-millimetre wave focal plane array coupling concepts: an ESA TRP project to develop multichroic focal plane pixels for future CMB polarisation experiments

N. Trappe, M. Bucher, P. de Bernardis, J. Delabrouille, P. Deo, M. De Petris, S. Doherty, A. Ghribi, M. Gradziel, L. Kuzmin, B. Maffei, S. Masi, J. A. Murphy, F. Noviello, C. O'Sullivan, L. Pagano, F. Piacentini, M. Piat, G. Pisano, M. Robinson, R. Stompor, A. Tartari, A. Traini, M. van der Vorst, P. Verhoeve, C. Zhu

Proceedings Volume 10708, 107082H (2018) https://doi.org/10.1117/12.2313480

KEYWORDS: Antennas, Polarization, Sensors, Telescopes, Staring arrays, Manufacturing, Prototyping, Cryogenics, Bolometers, Optical filters

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

Ultra-low-noise transition edge sensors for far infrared wavelengths: optical design, measurement and stray light control

E. Williams, S. Withington, D. Goldie, C. Thomas, J. Chen, P. A. Ade, R. Sudiwala, I. Walker, N. Trappe

Proceedings Volume 10708, 107081W (2018) https://doi.org/10.1117/12.2313611

KEYWORDS: Sensors, Stray light, Optical testing, Optical design, Optical filters, Superconducting detectors, Space telescopes, Far infrared

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Proceedings Article | 13 April 2018 Paper

Paper

Comparison of near-field measurements and electromagnetic simulations of the focal plane unit of the Heterodyne instrument for the far-infrared

Willem Jellema, Robert Huisman, Massimo Candotti, Timothy Finn, Neal Trappe, J. Anthony Murphy, Stafford Withington, Wolfgang Wild

Proceedings Volume 10568, 105682C (2018) https://doi.org/10.1117/12.2500107

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Proceedings Article | 24 February 2017 Paper

Paper

Radiation patterns of multimode feed-horn-coupled bolometers for FAR-IR space applications

Eimante Kalinauskaite, J. Anthony Murphy, Ian McAuley, Neal Trappe, Darragh McCarthy, Colm Bracken, Stephen Doherty, Marcin Gradziel, Créidhe O'Sullivan, Daniel Wilson, Tully Peacocke, Bruno Maffei, Jean-Michel Lamarre, Peter A. Ade, Giorgio Savini

Proceedings Volume 10103, 101030N (2017) https://doi.org/10.1117/12.2249869

KEYWORDS: Bolometers, Sensors, Waveguides, Extremely high frequency, Terahertz radiation, Beam controllers, Black bodies, Thin films, Computer simulations, Waveguide modes, Electronic filtering, Scattering, Matrices, Optical simulations, Thermal modeling, Free space

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Proceedings Article | 19 July 2016 Paper

Paper

Performance of horn-coupled transition edge sensors for L- and S-band optical detection on the SAFARI instrument

D. Goldie, D. Glowacka, S. Withington, Jiajun Chen, P. A. Ade, D. Morozov, R. Sudiwala, N. Trappe, O. Quaranta

Proceedings Volume 9914, 99140A (2016) https://doi.org/10.1117/12.2232740

KEYWORDS: S band, Sensors, Superconductors, Optical fabrication, Tantalum, Optical testing, L band, Black bodies, Temperature metrology, Optical filters

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Proceedings Article | 19 July 2016 Paper

Paper

W-band planar antennas for next generation sub-millimeter focal plane arrays

Prafulla Deo, Matthew Robinson, Bruno Maffei, Giampaolo Pisano, Neil Trappe

Proceedings Volume 9914, 99143P (2016) https://doi.org/10.1117/12.2232496

KEYWORDS: Antennas, Sensors, Polarization, Staring arrays, Astronomy, Optics manufacturing, Lenses, Dielectric polarization, Space telescopes, Telescopes

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Proceedings Article | 19 July 2016 Paper

Paper

Optical design and verification of a 4mm receiver for the 20m telescope at Onsala Space Observatory

George Walker, Eimante Kalinauskaite, Darragh McCarthy, Neil Trappe, Anthony Murphy, Leif Helldner, Miroslav Pantaleev, Jonas Flygare

Proceedings Volume 9914, 99142V (2016) https://doi.org/10.1117/12.2232576

KEYWORDS: Optical design, Receivers, Space telescopes, Telescopes, Space observatories, Optical design, Receivers, Space telescopes, Telescopes, Space observatories, Mirrors, Optical instrument design, Gaussian beams, Reflectors, Beam propagation method

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Proceedings Article | 19 July 2016 Paper

Paper

Optical characterisation of a camera module developed for ultra-low NEP TES detector arrays at FIR wavelengths

D. Morozov, R. Sudiwala, P. A. Ade, D. Goldie, D. Glowacka, S. Withington, N. Trappe

Proceedings Volume 9914, 991409 (2016) https://doi.org/10.1117/12.2232139

KEYWORDS: Sensors, Cameras, Optical testing, Optical filters, Computer aided design, Antennas, L band, Image filtering, Resistors, Temperature metrology

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Proceedings Article | 19 July 2016 Paper

Paper

Modeling multimode feed-horn coupled bolometers for millimeter-wave and terahertz astronomical instrumentation

Eimante Kalinauskaite, Anthony Murphy, Ian McAuley, Neil Trappe, Colm Bracken, Darragh McCarthy, Stephen Doherty, Marcin Gradziel, Creidhe O'Sullivan, Bruno Maffei, Jean-Michel Lamarre, Peter A. Ade, Giorgio Savini

Proceedings Volume 9914, 99142R (2016) https://doi.org/10.1117/12.2231444

KEYWORDS: Sensors, Bolometers, Waveguides, Scattering, Antennas, Matrices, Waveguide modes, Systems modeling, Resistance, Absorption

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Proceedings Article | 19 July 2016 Paper

Paper

Next generation sub-millimeter wave focal plane array coupling concepts: an ESA TRP project to develop multichroic focal plane pixels for future CMB polarization experiments

N. Trappe, M. Bucher, P. De Bernardis, J. Delabrouille, P. Deo, M. DePetris, S. Doherty, A. Ghribi, M. Gradziel, L. Kuzmin, B. Maffei, S. Mahashabde, S. Masi, J. Murphy, F. Noviello, C. O'Sullivan, L. Pagano, F. Piacentini, M. Piat, G. Pisano, M. Robinson, R. Stompor, A. Tartari, M. van der Vorst, P. Verhoeve

Proceedings Volume 9914, 991412 (2016) https://doi.org/10.1117/12.2231267

KEYWORDS: Sensors, Antennas, Staring arrays, Prototyping, Polarization, Signal detection, Manufacturing, Telescopes, Telescope design, Optics manufacturing

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Proceedings Article | 19 July 2016 Paper

Paper

Optical characterisation and analysis of multi-mode pixels for use in future far infrared telescopes

Darragh McCarthy, Neil Trappe, J. Anthony Murphy, Stephen Doherty, Marcin Gradziel, Créidhe O'Sullivan, Michael Audley, Gert de Lange, Maarten van der Vorst

Proceedings Volume 9914, 991413 (2016) https://doi.org/10.1117/12.2231710

KEYWORDS: Far infrared, Far infrared, Sensors, Free space, Waveguides, Waveguide modes, Matrices, Wave propagation, Scattering, Modeling, Systems modeling

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In this paper we present the development and verification of feed horn simulation code based on the mode- matching technique to simulate the electromagnetic performance of waveguide based structures of rectangular cross-section. This code is required to model multi-mode pyramidal horns which may be required for future far infrared (far IR) space missions where wavelengths in the range of 30 to 200 µm will be analysed. Multi-mode pyramidal horns can be used effectively to couple radiation to sensitive superconducting devices like Kinetic Inductance Detectors (KIDs) or Transition Edge Sensor (TES) detectors. These detectors could be placed in integrating cavities (to further increase the efficiency) with an absorbing layer used to couple to the radiation. The developed code is capable of modelling each of these elements, and so will allow full optical characterisation of such pixels and allow an optical efficiency to be calculated effectively. As the signals being measured at these short wavelengths are at an extremely low level, the throughput of the system must be maximised and so multi-mode systems are proposed. To this end, the focal planes of future far IR missions may consist of an array of multi-mode rectangular feed horns feeding an array of, for example, TES devices contained in individual integrating cavities. Such TES arrays have been fabricated by SRON Groningen and are currently undergoing comprehensive optical, electrical and thermal verification. In order to fully understand and validate the optical performance of the receiver system, it is necessary to develop comprehensive and robust optical models in parallel. We outline the development and verification of this optical modelling software by means of applying it to a representative multi-mode system operating at 150 GHz in order to obtain sufficiently short execution times so as to comprehensively test the code. SAFARI (SPICA FAR infrared Instrument) is a far infrared imaging grating spectrometer, to be proposed as an ESA M5 mission. It is planned for this mission to be launched on board the proposed SPICA (SPace Infrared telescope for Cosmology and Astrophysics) mission, in collaboration with JAXA. SAFARI is planned to operate in the 1.5-10 THz band, focussing on the formation and evolution of galaxies, stars and planetary systems. The pixel that drove the development of the techniques presented in this paper is typical of one option that could be implemented in the SAFARI focal plane, and so the ability to accurately understand and characterise such pixels is critical in the design phase of the next generation of far IR telescopes.

Proceedings Article | 23 July 2014 Paper

Paper

Optical modelling of far-infrared astronomical instrumentation exploiting multimode horn antennas

Créidhe O'Sullivan, J. Anthony Murphy, Ian Mc Auley, Daniel Wilson, Marcin Gradziel, Neil Trappe, Fiachra Cahill, T. Peacocke, G. Savini, K. Ganga

Proceedings Volume 9153, 91532V (2014) https://doi.org/10.1117/12.2055853

KEYWORDS: Scattering, Waveguides, Telescopes, Antennas, Sensors, Waveguide modes, Modeling, Laser scattering, Bolometers, Astronomical imaging

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Proceedings Article | 23 July 2014 Paper

Paper

Optical characterization of ultra-sensitive TES bolometers for SAFARI

Michael Audley, Gerhard de Lange, Jian-Rong Gao, Pourya Khosropanah, Philip Mauskopf, Dmitry Morozov, Neil Trappe, Stephen Doherty, Stafford Withington

Proceedings Volume 9153, 91530E (2014) https://doi.org/10.1117/12.2056037

KEYWORDS: Sensors, Fiber optic illuminators, Bolometers, Prototyping, Camera shutters, Optical testing, Fourier transforms, Tantalum, Spectroscopy, Satellites

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Proceedings Article | 23 July 2014 Paper

Paper

Efficient algorithms for optimising the optical performance of profiled smooth walled horns for future CMB and Far-IR missions

Darragh McCarthy, Neil Trappe, J. Anthony Murphy, Créidhe O'Sullivan, Marcin Gradziel, Stephen Doherty, Colm Bracken, Niall Tynan, Arturo Polegre, Peter Huggard

Proceedings Volume 9153, 915316 (2014) https://doi.org/10.1117/12.2056336

KEYWORDS: Phase measurement, Waveguides, Antennas, Scattering, Polarization, Sensors, Microwave radiation, Manufacturing, Bolometers, Throat

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Astronomical observations in the far-infrared are critical for investigation of cosmic microwave background (CMB) radiation and the formation and evolution of planets, stars and galaxies. In the case of space telescope receivers, a strong heritage exists for corrugated horn antenna feeds to couple the far-infrared signals to the detectors mounted in a waveguide or cavity structure. Such antenna feeds have been utilized, for example, in the Planck satellite in both single-mode channels for the observation of the CMB and the multi-mode channels optimized for the detection of foreground sources. Looking to the demands of the future space missions, it is clear that the development of new technology solutions for the optimization and simplification of horn antenna structures will be required for large arrays. Horn antennas will continue to offer excellent control of beam and polarization properties for CMB polarisation experiments satisfying stringent requirements on low sidelobe levels, symmetry, and low cross polarization in large arrays. Similarly for far infrared systems, multi-mode horn and waveguide cavity structures are proposed to enhance optical coupling of weak signals for cavity coupled bolometers. In this paper we present a computationally efficient approach for modelling and optimising horn character-istics. We investigate smooth-walled horns that have an equivalent optical performance to that of corrugated horns traditionally used for CMB measurements. We discuss the horn optimisation process and the algorithms available to maximise performance of a merit parameter such as low cross polarisation or high Gaussicity. A single moded horn resulting from this design process has been constructed and experimentally verified in the W band. The results of the measurement campaign are presented in this paper and compared to the simulated results, showing a high level of agreement in co and cross polarisation radiation patterns, with low levels of integrated cross polar power. For future Far IR receivers using waveguide bounded bolometers and absorbers, an optimisation of the waveg-uide structures and absorber location within the integrating cavity is critical to maximise coupling performance particularly for multimoded systems. We outline the benefit of using multi-moded horns in focal plane arrays and illustrate the increased optical sensitivity associated with a many-moded approach, which may be optimized for coupling to particular incident beams.

Proceedings Article | 23 July 2014 Paper

Paper

Refractive telescope systems for future cosmic microwave background polarimetry experiments

Peter Hargrave, Giorgio Savini, Marcin Gradziel, Neil Trappe, Niall Tynan, Massimo Candotti, Anthony Challinor, Stig Sørenson, Peter Ade, Rashmi Sudiwala, Maarten van der Vorst

Proceedings Volume 9153, 915314 (2014) https://doi.org/10.1117/12.2054634

KEYWORDS: Telescopes, Coating, Polarization, Space telescopes, Reflection, Polarimetry, Sensors, Refractor telescopes, Optical instrument design, Manufacturing

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Proceedings Article | 27 March 2013 Paper

Paper

Efficient horn antennas for next-generation terahertz and millimeter-wave space telescopes

Darragh McCarthy, Neil Trappe, Anthony Murphy, Colm Bracken, Stephen Doherty, Marcin Gradziel, Créidhe O'Sullivan

Proceedings Volume 8624, 862413 (2013) https://doi.org/10.1117/12.2001268

KEYWORDS: Scattering, Matrices, Waveguides, Antennas, Polarization, Space telescopes, Genetic algorithms, Wave propagation, Microwave radiation, Signal detection

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Proceedings Article | 27 September 2012 Paper

Paper

Ultra-low-noise transition edge sensors for the SAFARI L-band on SPICA

D. Goldie, J. Gao, D. Glowacka, D. Griffin, R. Hijmering, P. Khosropanah, B. Jackson, P. Mauskopf, D. Morozov, J. Murphy, M. Ridder, N. Trappe, C. O'Sullivan, S. Withington

Proceedings Volume 8452, 84520A (2012) https://doi.org/10.1117/12.925861

KEYWORDS: Tantalum, Sensors, L band, Optical testing, Temperature metrology, Technetium, Copper, Gold, Prototyping, Black bodies

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Proceedings Article | 27 September 2012 Paper

Paper

Measurements of the optical performance of bolometers for SPICA/SAFARI

Michael Audley, Gert de Lange, Jian-Rong Gao, Pourya Khosropanah, Marcel Ridder, Lorenza Ferrari, Wouter Laauwen, Manisha Ranjan, Philip Mauskopf, Dmitry Morozov, Neil Trappe

Proceedings Volume 8452, 84520B (2012) https://doi.org/10.1117/12.925234

KEYWORDS: Sensors, Fiber optic illuminators, Optical testing, Resistance, Temperature metrology, Bolometers, Spherical lenses, Tantalum, Magnetic sensors, Spectroscopy

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Proceedings Article | 24 September 2012 Paper

Paper

TES arrays for the short wavelength band of the SAFARI instrument on SPICA

P. Khosropanah, R. Hijmering, M. Ridder, J. Gao, D. Morozov, P. Mauskopf, N. Trappe, C. O'Sullivan, A. Murphy, D. Griffin, D. Goldie, D. Glowacka, S. Withington, B. Jackson, M. Audley, G. de Lange

Proceedings Volume 8452, 845209 (2012) https://doi.org/10.1117/12.925334

KEYWORDS: Sensors, Black bodies, Optical testing, Temperature metrology, Measurement devices, Copper, Silicon, Technetium, Detector arrays, Optical fabrication

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Proceedings Article | 24 September 2012 Paper

Paper

Optical modeling of waveguide coupled TES detectors towards the SAFARI instrument for SPICA

N. Trappe, C. Bracken, S. Doherty, J. Gao, D. Glowacka, D. Goldie, D. Griffin, R. Hijmering, B. Jackson, P. Khosropanah, P. Mauskopf, D. Morozov, A. Murphy, C. O'Sullivan, M. Ridder, S. Withington

Proceedings Volume 8452, 84520L (2012) https://doi.org/10.1117/12.926760

KEYWORDS: Sensors, Waveguides, Waveguide modes, Wave propagation, Antennas, Free space, Scattering, Prototyping, Silicon, Instrument modeling

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Proceedings Article | 2 March 2012 Paper

Paper

New developments in waveguide mode-matching techniques for far- infrared astronomy

J. Anthony Murphy, Stephen Doherty, Neil Trappe, Colm Bracken, Tully Peacocke, Creidhe O'Sullivan

Proceedings Volume 8261, 82610F (2012) https://doi.org/10.1117/12.908068

KEYWORDS: Waveguides, Waveguide modes, Scattering, Systems modeling, Sensors, Wave propagation, Bolometers, Antennas, Radio propagation, Astronomy

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Proceedings Article | 24 February 2011 Paper

Paper

Modelling of horn antennas and detector cavities for the SAFARI instrument at THz frequencies

S. Doherty, N. Trappe, C. O'Sullivan, J. Murphy, G. Curran, P. Mauskopf, J. Zhang, S. Withington, D. Goldie, D. Glowaka, P. Khosropanah, M. Ridder, M. Brujin, J. Gao, D. Griffin, B. Swinyard, M. Ferlot

Proceedings Volume 7938, 79380J (2011) https://doi.org/10.1117/12.881096

KEYWORDS: Sensors, Waveguides, Computer aided design, Antennas, Terahertz radiation, Space telescopes, Bolometers, Modeling, Device simulation, Microwave radiation

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Proceedings Article | 24 February 2011 Paper

Paper

Applications of holography in the millimeter-wave and terahertz region

I. McAuley, J. Murphy, N. Trappe, R. Mahon, D. McCarthy, P. McLaughlin

Proceedings Volume 7938, 79380H (2011) https://doi.org/10.1117/12.873821

KEYWORDS: Antennas, Holograms, Holography, Waveguides, Phase measurement, Digital holography, Dielectrics, Sensors, Image restoration, Wavefronts

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Proceedings Article | 15 July 2010 Paper

Paper

Efficient optical modelling for far-infrared astronomical instrumentation

Créidhe O'Sullivan, J. Anthony Murphy, Neil Trappe, Marcin Gradziel, Tully Peacocke, Stafford Withington

Proceedings Volume 7741, 77410R (2010) https://doi.org/10.1117/12.857243

KEYWORDS: Telescopes, Sensors, Scattering, Modeling, Antennas, Waveguides, Wave propagation, Systems modeling, Waveguide modes, Laser scattering

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Proceedings Article | 19 February 2010 Paper

Paper

Optical requirements and modeling of coupling devices for future far-infrared space missions

N. Trappe, J. Gao, D. Glowacka, D. Goldie, D. Griffin, P. Khosropanah, P. Mauskopf, D. Morozov, A. Murphy, C. O'Sullivan, M. Ridder, S. Withington

Proceedings Volume 7601, 76010A (2010) https://doi.org/10.1117/12.842059

KEYWORDS: Sensors, Waveguides, Wave propagation, Free space optics, Radio propagation, Space operations, Waveguide modes, Scattering, 3D modeling, Electromagnetism

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Proceedings Article | 9 February 2009 Paper

Paper

Optical modelling using Gaussian beam modes for the terahertz band

Créidhe O'Sullivan, John Murphy, Marcin Gradziel, John Lavelle, Tully Peacocke, Neil Trappe, Gareth Curran, David White, Stafford Withington

Proceedings Volume 7215, 72150P (2009) https://doi.org/10.1117/12.810807

KEYWORDS: Gaussian beams, Mirrors, Modeling, Beam propagation method, Diffractive optical elements, Optical simulations, Scattering, Wave propagation, Modal analysis, Optical design

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Proceedings Article | 18 July 2008 Paper

Paper

Optical modeling for millimeter and submillimeter-wave systems

John Murphy, Marcin Gradziel, Creidhe O'Sullivan, Tully Peacocke, Neil Trappe, David White, Stafford Withington

Proceedings Volume 7020, 70200W (2008) https://doi.org/10.1117/12.788912

KEYWORDS: Scattering, Systems modeling, Matrices, Modal analysis, Gaussian beams, Wave propagation, Laser scattering, Beam analyzers, Beam propagation method, Radio propagation

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Proceedings Article | 14 February 2008 Paper

Paper

Analysis of two ALMA front-end receiver channels using physical optics

Mark Whale, Massimo Candotti, Neil Trappe, Anthony Murphy, Andrey Baryshev, Victor Belitsky

Proceedings Volume 6893, 68930D (2008) https://doi.org/10.1117/12.762749

KEYWORDS: Reflectors, Polarization, Mirrors, Receivers, Analytical research, Antennas, Optical design, Optical testing, Gaussian beams, Reflector design

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Proceedings Article | 14 February 2008 Paper

Paper

Gaussian beam mode analysis of phase gratings

Robert May, J. Anthony Murphy, Creidhe O'Sullivan, Marcin Gradziel, Neil Trappe

Proceedings Volume 6893, 68930G (2008) https://doi.org/10.1117/12.763624

KEYWORDS: Gaussian beams, Diffraction gratings, Mirrors, Beam analyzers, Optical design, Diffraction, Beam propagation method, Laser scattering, Scattering, Phase retrieval

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Proceedings Article | 1 February 2007 Paper

Paper

Analysis of millimeter-wave imaging and detection

W. Lanigan, E. Butler, E. Duffy, I. Mc Auley, L. Young, M. Gradziel, C. O'Sullivan, J. Murphy, R. May, N. Trappe

Proceedings Volume 6472, 64720C (2007) https://doi.org/10.1117/12.700409

KEYWORDS: Sensors, Reflection, Terahertz radiation, Waveguides, Absorption, Millimeter wave imaging, Near field optics, Mirrors, Phase measurement, Signal detection

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Proceedings Article | 1 February 2007 Paper

Paper

Analysis of standing waves in submillimeter-wave optics

Neil Trappe, Stuart Kehoe, Eoin Butler, J. Anthony Murphy, Tim Finn, Stafford Withington, Willem Jellema

Proceedings Volume 6472, 64720B (2007) https://doi.org/10.1117/12.699074

KEYWORDS: Waveguides, Wave propagation, Free space, Sensors, Mirrors, Reflection, Reflectivity, Systems modeling, Scattering, Waveguide modes

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Proceedings Article | 7 March 2006 Paper

Paper

Analysis of standing waves in submillimeter-wave optics

Neil Trappe, Tim Finn, J. Anthony Murphy, Stafford Withington, Willem Jellema

Proceedings Volume 6120, 61200F (2006) https://doi.org/10.1117/12.643768

KEYWORDS: Wave propagation, Free space, Waveguides, Scattering, Reflection, Systems modeling, Beam propagation method, Waveguide modes, Matrices, Gaussian beams

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Proceedings Article | 19 May 2005 Paper

Paper

Novel techniques for millimeter wave imaging systems operating at 100GHz

Ronan Mahon, William Lanigan, J. Murphy, Neal Trappe, Stafford Withington, Willem Jellema

Proceedings Volume 5789, (2005) https://doi.org/10.1117/12.609271

KEYWORDS: Axicons, Bessel beams, Holography, Diffraction, Binary data, Holograms, Imaging systems, Wave propagation, Gaussian beams, Beam propagation method

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Proceedings Article | 8 December 2004 Paper

Paper

Modeling of millimetre-wave and terahertz imaging systems

Marcin Gradziel, David White, Neal Trappe, Ronan Mahon, Timothy Finn, Stafford Withington, Anthony Murphy, Creidhe O'Sullivan

Proceedings Volume 5619, (2004) https://doi.org/10.1117/12.578674

KEYWORDS: Systems modeling, Modeling, Diffraction, Gaussian beams, Radio propagation, Terahertz radiation, Mirrors, Computer aided design, Telescopes, Millimeter wave imaging

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Proceedings Article | 8 October 2004 Paper

Paper

Developments in quasi-optical design for THz

Creidhe O'Sullivan, J. Anthony Murphy, Gary Cahill, Marcin Gradziel, Neil Trappe, David White, Vladimir Yurchenko, Stafford Withington, Willem Jellema

Proceedings Volume 5498, (2004) https://doi.org/10.1117/12.551660

KEYWORDS: Terahertz radiation, Radio propagation, Wave propagation, Systems modeling, Gaussian beams, Optical design, Computer aided design, Modeling, Diffraction, Mirrors

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Proceedings Article | 16 September 2004 Paper

Paper

Gaussian beam mode analysis of standing waves in submillimeter telescope and receiver systems

Neil Trappe, Bill Lanigan, Timothy Finn, Willem Jellema, J. Anthony Murphy, Stafford Withington

Proceedings Volume 5497, (2004) https://doi.org/10.1117/12.551388

KEYWORDS: Waveguides, Free space, Gaussian beams, Wave propagation, Sensors, Scattering, Receivers, Telescopes, Systems modeling, Throat

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Proceedings Article | 16 September 2004 Paper

Paper

Quasi-optical verification of the focal plane optics of the heterodyne instrument for the far-infrared (HIFI)

Massimo Candotti, Gary Cahill, Timothy Finn, Willem Jellema, John Lavelle, J. Anthony Murphy, Creidhe O'Sullivan, Neil Trappe

Proceedings Volume 5497, (2004) https://doi.org/10.1117/12.551144

KEYWORDS: Mirrors, Beam propagation method, Near field optics, Wave propagation, Telescopes, Near field, Radio propagation, Antennas, Black bodies, Scattering

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Proceedings Article | 27 August 2003 Paper

Paper

Quasi-optical analysis of the HIFI instrument for the Herschel Space Observatory

Neal Trappe, J. Anthony Murphy, Bob Kruizinga, Huib Visser, Willem Jellema, Klaas Wildeman, Herman van de Stadt

Proceedings Volume 4876, (2003) https://doi.org/10.1117/12.463910

KEYWORDS: Mirrors, Gaussian beams, Beam propagation method, Wave propagation, Telescopes, Sensors, Beam analyzers, Space observatories, Diffraction, Radio propagation

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Showing 5 of 49 publications

Conference Committee Involvement (7)

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII

18 June 2024 | Yokohama, Japan

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI

19 July 2022 | Montréal, Québec, Canada

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X

14 December 2020 | Online Only, California, United States

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X

13 December 2020 | San Diego, California, United States

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX

12 June 2018 | Austin, Texas, United States

Showing 5 of 7 Conference Committees

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