Prof. Erika T. Hamden Profile

Prof. Erika T. Hamden

Assistant Professor

SPIE Involvement:

Editorial Board Member: Journal of Astronomical Telescopes, Instruments, and Systems | Author

Publications (49)

Proceedings Article | 16 October 2024 Poster + Paper

Adapting the Super-LOTIS optical telescope for ground-based NUV observations of transients

Jacob Vider, Peter Milne, Aafaque Khan, Ethan Potthoff, Erika Hamden, Alex Romero-Lorenzo, Shashank Verma

Proceedings Volume 13149, 131491L (2024) https://doi.org/10.1117/12.3030767

KEYWORDS: Tunable filters, Optical filters, Optical transmission, Telescopes, Equipment, Data transmission, Ultraviolet radiation, Cameras, Quantum efficiency, Observatories

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Proceedings Article | 22 August 2024 Presentation

The Faint Intergalactic-medium Redshifted Emission Balloon (FIREBall-2)

Drew Miles, Vincent Picouet, Chris Martin, Erika Hamden, Keri Hoadley, Bruno Milliard, Shouleh Nikzad, David Schiminovich, David Valls-Gabaud, Simran Agarwal, Philippe Balard, Patrick Blanchard, Harrison Bradley, Nicolas Bray, Ignacio Cevallos, Charles-Antoine Chevrier, Haeun Chung, Marty Crabill, Fernando Cruz Aguirre, Greyson Davis, Xihan Deng, Fabien Harmand, Catherine Hourtolle, Olivia Jones, Nazende Kerkeser, Aafaque Khan, Gillian Kyne, Jessica Li, Zeren Lin, Nicole Melso, Johan Montel, Julie Richard, Meghna Sitaram, Jared Termini, Jean-Noel Valdivia, Didier Vibert, Matthew Werneken

Proceedings Volume 13093, 1309303 (2024) https://doi.org/10.1117/12.3018474

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Proceedings Article | 22 August 2024 Poster

An overview of the on-ground and in-orbit calibration of Far-Ultraviolet Spectrographs for the Aspera SmallSat

Aafaque Khan, Carl Hergenrother, Miriam Keppler, Heejoo Choi, Haeun Chung, Carlos Vargas, Erika Hamden, Jason Corliss, Elijah Garcia, Daniel Truong, Naomi Yescas, Oswald H. Siegmund, Keri Hoadley, Adrian Martin, Hannah Tanquary, Thomas McMahon, Nazende Kerkeser, Jacob Vider

Proceedings Volume 13093, 1309333 (2024) https://doi.org/10.1117/12.3020385

Proceedings Article | 22 August 2024 Poster

Nox: a SmallSat mission concept for characterizing all-sky Lyman-UV background

Haeun Chung, Carlos Vargas, Erika Hamden, Heejoo Choi, Sumedha Uppnor, Walter Harris, Jason Corliss, Drew Miles, Manuel Quijada, Luis Rodriguez de Marcos, April Jewell, Fabien Grisé, David Schiminovich, Keri Hoadley, John Hennessy, Kwang-il Seon, Youngsoo Jo

Proceedings Volume 13093, 130933M (2024) https://doi.org/10.1117/12.3018507

Proceedings Article | 22 August 2024 Poster

Straylight analysis and baffle design for the Aspera UV SmallSat astrophysics mission

Simran Agarwal, Aafaque Raza Khan, Fernando Coronado, Tom Connors, Haeun Chung, Carlos J. Vargas, Erika Hamden, Tom Mcmahon, Hannah Tanquary

Proceedings Volume 13093, 130932R (2024) https://doi.org/10.1117/12.3020457

Proceedings Article | 22 August 2024 Presentation

All-reflective spatial heterodyne spectroscopy: extending high sensitivity velocity resolved measurements into the FUV to EUV and the utilization of novel grating designs for simultaneous detection of discrete passbands

Jason Corliss, Walter Harris, Ricardo Maciel, Derek Gardner, Haeun Chung, Erika Hamden

Proceedings Volume 13093, 1309308 (2024) https://doi.org/10.1117/12.3020398

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Proceedings Article | 21 August 2024 Poster + Paper

Characterizing fabrication quality and UV performance of UV gratings

Jared A. Termini, Keri Hoadley, Casey DeRoo, Cecilia Fasano, Paul Scowen, Manuel Quijada, Mateo Batkis, Javier Del Hoyo, Luis Rodriguez-de-Marcos, Erika Hamden, Jessica Li

Proceedings Volume 13093, 1309342 (2024) https://doi.org/10.1117/12.3016276

KEYWORDS: Ultraviolet radiation, Blazed gratings, Surface roughness, Fabrication, Diffraction gratings, Optical gratings, Coating, Interferometry, Diffraction, Spectral resolution

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Proceedings Article | 21 August 2024 Presentation + Paper

Advancing ultraviolet detector technology for future missions: investigating the dark current plateau in silicon detectors using photon-counting EMCCDs

Aafaque Khan, Erika Hamden, Gillian Kyne, April Jewell, John Henessey, Shouleh Nikzad, Vincent Picouet, Olivia Jones, Harrison Bradley, Nazende Kerkeser, Zeren Lin, Brock Parker, Grant West, John Ford, Frank Gacon, Dave Beaty, Jacob Vider

Proceedings Volume 13093, 130930O (2024) https://doi.org/10.1117/12.3021039

KEYWORDS: Sensors, Dark current, Electron multiplying charge coupled devices, Temperature metrology, Ultraviolet detectors, Silicon, Clocks, Charge-coupled devices, CMOS sensors, Vacuum

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Proceedings Article | 21 August 2024 Poster + Paper

Realignment and performance verification of two-mirror focal corrector optics for FIREBall-2 using computer generated hologram (CGH)

Simran Agarwal, Aafaque Khan, Harrison Bradley, Haeun Chung, Ipek Nazende Kerkeser, Olivia Jones, Erika Hamden, David Schiminovich, Bruno Milliard, Vincent Picouet, Drew Miles, Ignacio Cevallos-Aleman, Zeren Lin, Jessica Li, Nicole Melso, Christopher Martin, Keri Hoadley, Gillian Kyne, Shouleh Nikzad, David Valls-Gabaud

Proceedings Volume 13093, 130932V (2024) https://doi.org/10.1117/12.3020834

KEYWORDS: Computer generated holography, Optical alignment, Optical surfaces, Spectrographs, Tolerancing, Interferometers, Telescopes, Mirrors, Balloons, Aspheric lenses

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Proceedings Article | 21 August 2024 Presentation + Paper

Optical alignment of contamination-sensitive far-ultraviolet spectrographs for Aspera SmallSat mission

Aafaque Khan, Erika Hamden, Haeun Chung, Heejoo Choi, Daewook Kim, Nicole Melso, Keri Hoadley, Carlos Vargas, Daniel Truong, Elijah Garcia, Bill Verts, Fernando Coronado, Jamison Noenickx, Jason Corliss, Hannah Tanquary, Tom McMahon, Dave Hamara, Simran Agarwal, Ramona Augustin, Peter Behroozi, Harrison Bradley, Trenton Brendel, Joe Burchett, Jasmine Martinez Castillo, Jacob Chambers, Lauren Corlies, Greyson Davis, Ralf-Jürgen Dettmar, Ewan Douglas, Giulia Ghidoli, Alfred Goodwin, Walter Harris, Carl Hergenrother, J. Christopher Howk, Miriam Keppler, Nazende Ipek Kerkeser, John Kidd, Jessica Li, Gabe Noriega, Sooseong Park, Ryan Pecha, Cork Sauve, David Schiminovich, Sanford Selznic, Oswald Siegmund, Rebecca Su, Sumedha Uppnor, Jacob Vider, Ellie Wolcott, Naomi Yescas, Dennis Zaritsky

Proceedings Volume 13093, 130930A (2024) https://doi.org/10.1117/12.3020822

KEYWORDS: Ultraviolet astronomy, 3D metrology, Far ultraviolet, Optical alignment, Computer generated holography, Tolerancing, Prototyping, Microchannel plates, Vacuum, Contamination, Spectrographs

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Proceedings Article | 21 August 2024 Poster + Paper

Ultraviolet reflective grating performance verification test setup and simulations for the Aspera SmallSat mission

Jessica Li, Rebecca Su, Sumedha Uppnor, Haeun Chung, Jason Corliss, Simran Agarwal, Aafaque Khan, Elijah Garcia, Naomi Yescas, Daniel Truong, Carlos Vargas, Erika Hamden, Ramona Augustin, Peter Behroozi, Joe Burchett, Heejoo Choi, Lauren Corlies, Greyson Davis, Ralf-Jürgen Dettmar, Ewan Douglas, Carl Hergenrother, Keri Hoadley, J. Christopher Howk, Miriam Keppler, Daewook Kim, Nicole Melso, David Schiminovich, Fernando Coronado, Giulia Ghidoli, Alfred Goodwin, Dave Hamara, Walter Harris, Karl Harshman, John Kidd, Tom McMahon, Jamison Noenickx, Gabe Noriega, Ryan Pecha, Cork Sauve, Sanford Selznick, Hannah Tanquary, Bill Verts, Ellie Wolcott, Dennis Zaritsky

Proceedings Volume 13093, 130932W (2024) https://doi.org/10.1117/12.3017215

KEYWORDS: Optical gratings, Vacuum, Mirrors, Optical alignment, Diffraction gratings, Simulations, Optical fabrication, Microchannel plates, Vacuum chambers, Sensors

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Proceedings Article | 21 August 2024 Presentation + Paper

Eos: a FUV spectroscopic mission to observe molecular hydrogen in molecular clouds

Erika Hamden, David Schiminovich, Neal Turner, Blakesley Burkhart, Thomas Haworth, Nicole Arulanantham, Haeun Chung, Shuo Kong, Keri Hoadley, Karen Willacy, Thavisha Dharmawardena, Jinyoung Serena Kim, Shmuel Bialy, Min-Young Lee, Miles Smith, Elizabeth Luthman

Proceedings Volume 13093, 130930C (2024) https://doi.org/10.1117/12.3017644

KEYWORDS: Clouds, Ultraviolet radiation, Far ultraviolet, Stars, Molecules, Hydrogen, Molecular spectroscopy, Spectral resolution, Fluorescence, Equipment

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Proceedings Article | 21 August 2024 Poster + Paper

Contamination control for the Aspera FUV SmallSat

Nicole Melso, Aafaque Khan, Hannah Tanquary, Elijah Garcia, Daniel Truong, Naomi Yescas, Sooseong Park, Sumedha Uppnor, Carlos Vargas, Haeun Chung, Tom Mcmahon, Keri Hoadley, Erika Hamden, Jason Corliss, Bill Verts, Simran Agarwal, Ramona Augustin, Peter Behroozi, Harrison Bradley, Trenton Brendel, Joe Burchett, Jasmine Martinez Castillo, Jacob Chambers, Heejoo Choi, Lauren Corlies, Fernando Coronado, Greyson Davis, Ralf-Jürgen Dettmar, Ewan Douglas, Giulia Ghidoli, Alfred Goodwin, Dave Hamara, Walt Harris, Carl Hergenrother, J. Christopher Howk, Miriam Keppler, Nazende ipek Kerkeser, John Kidd, DaeWook Kim, Jessica Li, Jamison Noenickx, Gabe Noriega, Ryan Pecha, Cork Sauve, David Schiminovich, Sanford Selznick, Oswald Siegmund, Rebecca Su, Ellie Wolcott, Dennis Zaritsky

Proceedings Volume 13093, 130932Q (2024) https://doi.org/10.1117/12.3017698

KEYWORDS: Contamination, Vacuum chambers, Contamination control, Humidity, Vacuum, Far ultraviolet

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Proceedings Article | 21 August 2024 Poster + Paper

FIREBall-2 2023: flight communications performance

Greyson Davis, Keri Hoadley, Jared Termini, Fernando Cruz Aguirre, Philippe Balard, Nicolas Bray, Ignacio Cevallos-Aleman, Erika Hamden, Gillian Kyne, Zeren Lin, D. Christopher Martin, Drew Miles, Bruno Millard, Shouleh Nikzad, Vincent Picouet, David Schiminovich, Meghna Sitaram, David Valls-Gabaud

Proceedings Volume 13093, 130932S (2024) https://doi.org/10.1117/12.3019120

KEYWORDS: Computing systems, Multiplexers, Telecommunications, Balloons, Antennas, Data communications, Connectors, Computer hardware, Data transmission, Design

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Proceedings Article | 21 August 2024 Presentation + Paper

Aspera payload design overview: UV SmallSat mission to detect and map warm-hot halo gas around the nearby galaxies

Haeun Chung, Carlos Vargas, Erika Hamden, Tom McMahon, Hannah Tanquary, Aafaque Khan, Fernando Coronado, Bill Verts, Nicole Melso, Heejoo Choi, Simran Agarwal, Jason Corliss, Keri Hoadley, Miriam Keppler, Dave Hamara, Elijah Garcia, Daniel Truong, Naomi Yescas, Ramona Augustin, Mateo Batkis, Peter Behroozi, Harrison Bradley, Trenton Brendel, Joseph Burchett, Jasmine Martinez Castillo, Jacob Chambers, Lauren Corlies, Greyson Davis, Ralf-Jürgen Dettmar, Ewan Douglas, Giulia Ghidoli, Alfred Goodwin, Walter Harris, John Hennessy, Carl Hergenrother, J. Christopher Howk, Nazende Ipek Kerkeser, John Kidd, Daewook Kim, Jessica Li, Adrian Martin, Jamison Noenickx, Gabe Noriega, Sooseong Park, Ryan Pecha, Manuel Quijada, L. Rodriguez de Marcos, Cork Sauve, David Schiminovich, Sanford Selznick, Oswald Siegmund, Rebecca Su, Sumedha Uppnor, Ellie Wolcott, Dennis Zaritsky

Proceedings Volume 13093, 1309302 (2024) https://doi.org/10.1117/12.3017274

KEYWORDS: Optical gratings, Microchannel plates, Spectrographs, Optical coatings, Optical alignment, Spectral resolution

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Proceedings Article | 21 August 2024 Presentation + Paper

The SmallSat Technology Accelerated Maturation Platform-1 (STAMP-1): a proposal to advance ultraviolet science, workforce, and technology for the Habitable Worlds Observatory

Kevin France, Jason Tumlinson, Brian Fleming, Erika Hamden, Stephan McCandliss, Paul Scowen, Sarah Tuttle, Allison Youngblood

Proceedings Volume 13093, 130930Q (2024) https://doi.org/10.1117/12.3018581

KEYWORDS: Equipment, Ultraviolet radiation, Observatories, Galactic astronomy, Far ultraviolet, Imaging spectroscopy, Ultraviolet detectors, Telescopes, Prototyping, Mirrors

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SPIE Journal Paper | 13 August 2024 Open Access

SmallSat Technology Accelerated Maturation Platform-1: a proposal to advance ultraviolet science, workforce, and technology for the Habitable Worlds Observatory

Kevin France, Jason Tumlinson, Brian Fleming, Mario Gennaro, Erika Hamden, Stephan McCandliss, Paul Scowen, Evgenya Shkolnik, Sarah Tuttle, Carlos Vargas, Allison Youngblood

JATIS, Vol. 10, Issue 03, 034004, (August 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.3.034004

KEYWORDS: Equipment, Ultraviolet radiation, Observatories, Galactic astronomy, Far ultraviolet, Imaging spectroscopy, Astrophysics, Ultraviolet detectors, Prototyping, Telescopes

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SPIE Journal Paper | 5 August 2024 Open Access

FIREBall-2 UV balloon telescope in-flight calibration system

Jessica Li, Nazende Kerkeser, Aafaque Khan, Simran Agarwal, Olivia Jones, Erika Hamden, Trenton Brendel, Haeun Chung, Vincent Picouet, David Schiminovich, Drew Miles, Keri Hoadley, Ignacio Cevallos-Aleman, Meghna Sitaram, Zeren Lin, Harrison Bradley, D. Martin, Marty Crabill, Fernando Cruz Aguirre, Charles-Antoine Chevrier, Philippe Balard, Patrick Blanchard, Nicolas Bray, Greyson Davis, Xihan Deng, Fabien Harmand, Catherine Hourtolle, Gillian Kyne, Nicole Melso, Johan Montel, Shouleh Nikzad, Alain Peus, Julie Richard, Jared Termini, Jean-Noel Valdivia, David Valls-Gabaud, Didier Vibert, Matthew Werneken

JATIS, Vol. 10, Issue 03, 035002, (August 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.3.035002

KEYWORDS: Calibration, Lamps, Camera shutters, Spectrographs, Zinc, Ultraviolet radiation, Balloons, Telescopes, Ultraviolet telescopes, Sensors

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Proceedings Article | 25 July 2024 Presentation + Paper

Development of a data reduction pipeline for the Aspera SmallSat mission

Miriam Keppler, Haeun Chung, Aafaque Khan, Carl Hergenrother, Carlos Vargas, Jacob Chambers, Jacob Vider, Sanford Selznick, Giulia Ghidoli, Hannah Tanquary, Erika Hamden, J. Christopher Howk, Simran Agarwal, Ramona Augustin, Peter Behroozi, Joe Burchett, Heejoo Choi, Lauren Corlies, Jason Corliss, Fernando Coronado, Greyson Davis, Ralf-Jürgen Dettmar, Ewan Douglas, Elijah Garcia, Alfred Goodwin, Dave Hamara, Walt Harris, Keri Hoadley, John Kidd, Daewook Kim, Jessica Li, Tom McMahon, Nicole Melso, Jamison Noenickx, Gabe Noriega, Ryan Pecha, Cork Sauve, David Schiminovich, Siegmund Oswald, Daniel Truong, Sumedha Uppnor, Bill Verts, Ellie Wollcott, Naomi Yescas, Dennis Zaritsky, Harrison Bradley, Trenton Brendel

Proceedings Volume 13101, 131011Q (2024) https://doi.org/10.1117/12.3017883

KEYWORDS: Calibration, Sensors, Microchannel plates, Device simulation, Space operations, Image processing, Data processing, Extragalactic astronomy, Software development

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Proceedings Article | 27 September 2023 Presentation

FIREBall-2 UV balloon telescope in-flight calibration system

Jessica Li, Nazende Kerkeser, Aafaque Khan, Simran Agarwal, Erika Hamden, David Schiminovich, Haeun Chung, Vincent Picouet, Drew Miles, Keri Hoadley, Ignacio Cevallos-Aleman, Harrison Bradley, Olivia Jones, D. Christopher Martin, Marty Crabill, Trenton Brendel, Shouleh Nikzad, Nicolas Bray, Johan Montel, Gillian Kyne, Zeren Lin, Philippe Balard, Patrick Blanchard, Charles-Antoine Chevrier, Alain Peus, Didier Vibert, Nicole Melso, David Valls-Gabaud

Proceedings Volume 12678, 1267804 (2023) https://doi.org/10.1117/12.2676583

KEYWORDS: Calibration, Ultraviolet telescopes, Ultraviolet radiation, Telescopes, Balloons, Zinc, Spectrographs, Emission wavelengths, Camera shutters, Sensors

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Proceedings Article | 27 September 2023 Presentation

Advanced detector coatings for UV spectroscopy applications

April Jewell, John Hennessy, Robin Rodríguez, Erika Hamden, Aafaque Khan

Proceedings Volume 12678, 126780L (2023) https://doi.org/10.1117/12.2678037

KEYWORDS: Ultraviolet radiation, Spectroscopy, Optical coatings, Ultraviolet detectors, Spectrometers, Spectral response, Quantum efficiency, Galaxy evolution, Dispersion, Antireflective coatings

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Proceedings Article | 27 September 2023 Presentation

Payload design and development of Aspera: the UV SmallSat mission for mapping warm-hot phase gas in nearby galaxy halos

Haeun Chung, Carlos Vargas, Erika Hamden, Thomas McMahon, Hannah Tanquary, Peter Behroozi, Ewan Douglas, Miriam Keppler, Nicole Melso, Simran Agarwal, Aafaque Khan, Jessica Li, Sumedha Uppnor, Jacob Chambers, Giulia Ghidoli, Gabe Noriega, Ryan Pecha, Ellie Wolcott, Fernando Coronado, Elijah Garcia, Daniel Truong, Naomi Yescas, Heejoo Choi, Tom Connors, Jason Corliss, Dave Hamara, Walter Harris, Karl Harshman, Daewook Kim, Corwynn Sauve, Bill Verts, Michael Ward, Dennis Zaritsky, Carl Hergenrother, John Kidd, Sanford Selznick, Oswald Siegmund, Simon Grocott, David Schiminovich, Keri Hoadley

Proceedings Volume 12678, 126780C (2023) https://doi.org/10.1117/12.2677212

KEYWORDS: Galactic astronomy, Design and modelling, Ultraviolet radiation, Spectrographs, Optical alignment, Computer generated holography, Ultraviolet telescopes, Ultraviolet detectors, UV-Vis spectroscopy, Tolerancing

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SPIE Journal Paper | 27 December 2022 Open Access

Hyperion: the origin of the stars. A far UV space telescope for high-resolution spectroscopy over wide fields

Erika Hamden, David Schiminovich, Shouleh Nikzad, Neal Turner, Blakesley Burkhart, Thomas Haworth, Keri Hoadley, Jinyoung Serena Kim, Shmuel Bialy, Geoff Bryden, Haeun Chung, Nia Imara, Rob Kennicutt, Jorge Pineda, Shuo Kong, Yasuhiro Hasegawa, Ilaria Pascucci, Benjamin Godard, Mark Krumholz, Min-Young Lee, Daniel Seifried, Amiel Sternberg, Stefanie Walch, Miles Smith, Stephen Unwin, Elizabeth Luthman, Alina Kiessling, James McGuire, Mina Rais-Zadeh, Michael Hoenk, Thomas Pavlak, Carlos Vargas, Daewook Kim

JATIS, Vol. 8, Issue 04, 044008, (December 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.4.044008

KEYWORDS: Stars, Ultraviolet radiation, Clouds, Far ultraviolet, Space telescopes, Fluorescence, Molecules, Equipment, Galactic astronomy, Spectroscopy

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SPIE Journal Paper | 25 November 2022 Open Access

Balloon-borne FIREBall-2 ultraviolet spectrograph stray light control based on nonsequential reverse modeling of on-sky data

Trenton Brendel, Aafaque Khan, Simran Agarwal, Heejoo Choi, Daewook Kim, Erika Hamden, Vincent Picouet, D. Christopher Martin, Bruno Milliard, David Schiminovich, Shouleh Nikzad, Jean Evrard, Nicolas Bray, Johan Montel, Keri Hoadley, Drew Miles, Gillian Kyne, Jessica Li, Zeren Lin, Haeun Chung, Philippe Balard, Patrick Blanchard, Marty Crabill, Charles-Antoine Chevrier, Alain Peus, Ignacio Cevallos-Aleman, Olivia Jones, Harrison Bradley, Naz Ipek Kerkeser, Matthew Werneken, Didier Vibert, Nicole Melso, David Valls-Gabaud

JATIS, Vol. 8, Issue 04, 048001, (November 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.4.048001

KEYWORDS: Baffles, Stray light, Sensors, Spectrographs, Mirrors, Balloons, Ultraviolet radiation, Stray light control, Tongue, Light scattering

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Proceedings Article | 3 October 2022 Presentation

An efficient high-etendue spectrometer

James McGuire, Erika Hamden

Proceedings Volume 12235, 122350A (2022) https://doi.org/10.1117/12.2646738

KEYWORDS: Spectroscopy, Mirrors, Stars, Diffraction gratings, Clouds, Spherical lenses, Spectral resolution, Relays, Interfaces

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Proceedings Article | 31 August 2022 Poster + Paper

Determining ideal grating parameters for UV blazed gratings

Jared A. Termini, Keri Hoadley, Casey DeRoo, Cecilia Fasano, Erika Hamden, Jessica Li

Proceedings Volume 12181, 121812Q (2022) https://doi.org/10.1117/12.2628739

KEYWORDS: Diffraction gratings, Diffraction, Ultraviolet radiation, Optical design, Energy efficiency, Silicon, Optical lithography, Mirrors, Electron beam lithography, Computer simulations

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Proceedings Article | 29 August 2022 Open Access

Astro2020 Decadal Report Panel

Sarah Kendrew, Jim Oschmann, Jean Turner, Andrew Driesman, Erika Hamden, Evgenya Shkolnik

Proceedings Volume 12188, 1218801 (2022) https://doi.org/10.1117/12.2646877

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Proceedings Article | 29 August 2022 Presentation

FIREBall-2(022): challenges, progress, and the road ahead to flight

Keri Hoadley, Chris Martin, Erika Hamden, David Schiminovich, Shouleh Nikzad, Jean Evrard, Bruno Milliard, David Valls-Gabaud, Aafaque Khan, Simran Agarwal, Haeun Chung, Jessica Li, Trenton Brendel, Carlos Vargas, Nicole Melso, Zeren Lin, Marty Crabill, Drew Miles, Gillian Kyne, Vincent Picouet, Ignacio Cevallos, Barbara Santiago, Philippe Balard, Patrick Blanchard, Didier Vibert, Nicolas Bray, Catherine Hourtolle, Frédéri Mirc, Johan Montel, Jared Termini

Proceedings Volume 12181, 1218109 (2022) https://doi.org/10.1117/12.2629052

KEYWORDS: Roads, Galactic astronomy, Ultraviolet radiation, Space operations, Electron multiplying charge coupled devices, Ultraviolet telescopes, Ultraviolet detectors, Spectrographs, Space telescopes, Observatories

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Proceedings Article | 29 August 2022 Poster

Fabricating the next generation of high energy reflection gratings

Cecilia Fasano, Casey DeRoo, Keri Hoadley, Fabien Grise, Randall McEntaffer, Jake McCoy, Erika Hamden, Jessica Li

Proceedings Volume 12181, 121814M (2022) https://doi.org/10.1117/12.2629389

KEYWORDS: Diffraction gratings, Fabrication, Nanoimprint lithography, Electron beam lithography, X-rays, X-ray lithography, X-ray diffraction, Spectrographs, Spectral resolution, Potassium

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Proceedings Article | 20 August 2021 Presentation + Paper

Aspera: the UV SmallSat telescope to detect and map the warm-hot gas phase in nearby galaxy halos

Haeun Chung, Carlos Vargas, Erika Hamden, Tom McMahon, Kerry Gonzales, Aafaque Khan, Simran Agarwal, Hop Bailey, Peter Behroozi, Trenton Brendel, Heejoo Choi, Tom Connors, Lauren Corlies, Jason Corliss, Ralf-Jürgen Dettmar, David Dolana, Ewan Douglas, John Guzman, Dave Hamara, Walt Harris, Karl Harshman, Carl Hergenrother, Keri Hoadley, John Kidd, Daewook Kim, Jessica Li, Manny Montoya, Corwynn Sauve, David Schiminovich, Sanford Selznick, Oswald Siegmund, Michael Ward, Ellie Wolcott, Dennis Zaritsky

Proceedings Volume 11819, 1181903 (2021) https://doi.org/10.1117/12.2593001

KEYWORDS: Galactic astronomy, Spectrographs, Microchannel plates, Telescopes, Spectral resolution, Ultraviolet radiation, Target detection, Signal detection, Mirrors

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SPIE Journal Paper | 12 March 2021

Long-slit cross-dispersion spectroscopy for Hyperion UV space telescope

Heejoo Choi, Isaac Trumper, Yi-Ting Feng, Hyukmo Kang, Joel Berkson, Haeun Chung, Erika Hamden, Dae Wook Kim

JATIS, Vol. 7, Issue 01, 014006, (March 2021) https://doi.org/10.1117/12.10.1117/1.JATIS.7.1.014006

KEYWORDS: Spectroscopy, Sensors, Ultraviolet radiation, Space telescopes, Spectral resolution, Diffraction gratings, Optical design, Freeform optics, Diffraction, Mirrors

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Proceedings Article | 13 December 2020 Presentation

FIREBAll-2 thermal control system: Performance of the 2018 flight and improvements for 2021

Zeren Lin, Gillian Kyne, Bruno Milliard, Hung Pham, Keri Hoadley, Chris Martin, David Schiminovich, Erika Hamden, Shouleh Nikzad, Vincent Picouet

Proceedings Volume 11445, 1144529 (2020) https://doi.org/10.1117/12.2561974

KEYWORDS: Control systems, Cryocoolers, Sensors, Thermal modeling, Performance modeling, Ultraviolet radiation, Astronomical imaging, Spectrographs, Galactic astronomy, Electron multiplying charge coupled devices

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SPIE Journal Paper | 13 November 2020

End-to-end ground calibration and in-flight performance of the FIREBall-2 instrument

Vincent Picouet, Bruno Milliard, Gillian Kyne, Didier Vibert, David Schiminovich, Christopher Martin, Erika Hamden, Keri Hoadley, Johan Montel, Nicole Melso, Donal O'Sullivan, Jean Evrard, Etienne Pérot, Robert Grange, Shouleh Nikzad, Philippe Balard, Patrick Blanchard, Frédéri Mirc, Nicolas Bray, April Jewell, Samuel Quiret

JATIS, Vol. 6, Issue 04, 044004, (November 2020) https://doi.org/10.1117/12.10.1117/1.JATIS.6.4.044004

KEYWORDS: Calibration, Sensors, Spectrographs, Ultraviolet radiation, Chromium, Galactic astronomy, Signal to noise ratio, Electron multiplying charge coupled devices, Stars, Spatial resolution

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Proceedings Article | 20 August 2020 Presentation + Paper

Hyperion: Far-UV cross dispersion spectroscope design

Heejoo Choi, Isaac Trumper, Yi-Ting Feng, Hyukmo Kang, Erika Hamden, Dae Wook Kim

Proceedings Volume 11487, 114870W (2020) https://doi.org/10.1117/12.2570489

KEYWORDS: Spectroscopy, Optical design, Spectral resolution, Diffraction gratings, Diffraction, Mirrors, Freeform optics, Telescopes

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SPIE Journal Paper | 12 March 2020 Open Access

Special Section Guest Editorial: Detectors for Astronomy and Cosmology

Shouleh Nikzad, Erika Hamden, Michael Hoenk, John MacKenty, Andrei Nomerotski, Charles Shapiro, Roger Smith

JATIS, Vol. 6, Issue 01, 011001, (March 2020) https://doi.org/10.1117/12.10.1117/1.JATIS.6.1.011001

KEYWORDS: Sensors, Astronomy, Charge-coupled devices, Image sensors, Large Synoptic Survey Telescope, Quantum efficiency, Ultraviolet radiation, Exoplanets, Calibration, CCD image sensors

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SPIE Journal Paper | 12 March 2020

Delta-doped electron-multiplying CCDs for FIREBall-2

Gillian Kyne, Erika Hamden, Shouleh Nikzad, Keri Hoadley, April Jewell, Todd Jones, Michael Hoenk, Samuel Cheng, D. Christopher Martin, Nicole Lingner, David Schiminovich, Bruno Milliard, Robert Grange, Olivier Daigle

JATIS, Vol. 6, Issue 01, 011007, (March 2020) https://doi.org/10.1117/12.10.1117/1.JATIS.6.1.011007

KEYWORDS: Electron multiplying charge coupled devices, Sensors, Charge-coupled devices, Clocks, Chromium, Spectrographs, Ultraviolet radiation, Calibration, Quantum efficiency, Temperature metrology

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Proceedings Article | 9 September 2019 Presentation + Paper

The FIREBall-2 UV balloon telescope: 2018 flight and improvements for 2020

Keri Hoadley, Erika Hamden, Bruno Milliard, Aafaque Khan, Simran Agarwal, Zeren Lin, David Schiminovich, Gillian Kyne, Jean Evrard, D. Christopher Martin

Proceedings Volume 11118, 1111815 (2019) https://doi.org/10.1117/12.2530047

KEYWORDS: Spectrographs, Galactic astronomy, Sensors, Ultraviolet radiation, Light scattering, Optical coatings, Calibration, Electron multiplying charge coupled devices

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Proceedings Article | 9 September 2019 Presentation

2018 flight of the faint intergalactic medium redshifted emission balloon (FIREBall-2) (Conference Presentation)

Erika Hamden, Keri Hoadley, Chris Martin, David Schiminovich, Shouleh Nikzad, Bruno Milliard, Gillian Kyne

Proceedings Volume 11118, 1111814 (2019) https://doi.org/10.1117/12.2530083

KEYWORDS: Telescopes, Ultraviolet radiation, Electron multiplying charge coupled devices, Astronomical imaging, Spectrographs, Mirrors, Hardware testing

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Proceedings Article | 9 September 2019 Presentation

Ground- and space-based UV observations with EMCCDs (Conference Presentation)

Gillian Kyne, Erika Hamden, Keri Hoadley, Christopher Martin, Shouleh Nikzad, April Jewell

Proceedings Volume 11115, 111150B (2019) https://doi.org/10.1117/12.2530520

KEYWORDS: Electron multiplying charge coupled devices, Ultraviolet radiation, Charge-coupled devices, Detector development, Astronomical imaging, Spectrographs, New and emerging technologies, Galactic astronomy, Photons

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Proceedings Article | 13 May 2019 Paper

FIREBall-2: advancing TRL while doing proof-of-concept astrophysics on a suborbital platform

Erika Hamden, Keri Hoadley, D. Christopher Martin, David Schiminovich, Bruno Milliard, Shouleh Nikzad, Ramona Augustin, Philippe Balard, Patrick Blanchard, Nicolas Bray, Marty Crabill, Jean Evrard, Albert Gomes, Robert Grange, Julia Gross, April Jewell, Gillian Kyne, Michele Limon, Nicole Lingner, Mateusz Matuszewski, Nicole Melso, Frédéri Mirc, Johan Montel, Hwei Ru Ong, Donal O'Sullivan, Sandrine Pascal, Etienne Perot, Vincent Picouet, Muriel Saccoccio, Brian Smiley, Xavier Soors, Pierre Tapie, Didier Vibert, Isabelle Zenone, Jose Zorrilla

Proceedings Volume 10982, 1098220 (2019) https://doi.org/10.1117/12.2518711

KEYWORDS: Ultraviolet radiation, Sensors, Charge-coupled devices, Astrophysics, Electron multiplying charge coupled devices, Quantum efficiency, Mirrors, Spectrographs, Microchannel plates, Ultraviolet detectors

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Proceedings Article | 10 July 2018 Presentation

The Faint Intergalactic Redshifted Emission Balloon-2: End-to-end ground Calibration (Conference Presentation)

Vincent Picouet, Bruno Milliard, Didier Vibert, Robert Grange, Christopher Martin, Erika Hamden, Gillian Kyne, David Schiminovich, Ramona Augustin, Nicole Melso, Julia Gross, Samuel Quiret

Proceedings Volume 10699, 106990L (2018) https://doi.org/10.1117/12.2313324

KEYWORDS: Calibration, Ultraviolet radiation, Galactic astronomy, Holographic interferometry, Astronomical imaging, Spectrographs, Optical design, Absorption spectroscopy, Spatial resolution, Spectral resolution

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The circumgalactic medium (CGM) plays a critical role in the evolution of galaxy discs, as it hosts important mechanisms regulating their replenishment through inflows and outflows. Besides absorption spectroscopy, mapping of the HI Lyα emission of z>2 CGM is bringing a new perspective with a complete 2- or 3-D mapping. Despite this benefit, data in emission are very scarce in the large time span from z∼2 to the present because of the difficulties inherent to vacuum UV observations. The FIREBall-2 (Faint Intergalactic Redshifted Emission Balloon) instrument has been developed to help fill this gap and is scheduled for launch in September 2018. It has been optimized to provide a bi-dimensional (x, λ) map of the extremely faint diffuse Ly-a HI emission in the CGM at z∼0.7 and has the capability to observe ~200 galaxies and a dozen QSOs in a single night flight. Given its wide field of view (FOV) of 20x40 arcmin2, its angular resolution of 6-10 arcsec and spectral resolution above 1000, FIREBall-2 will bring important insights about the gas distribution in the CGM, and the velocity/temperature fields, and has the potential to bring statistical constraints. The instrument is a balloon-borne 1m telescope coupled to a UV multi-object spectrograph (MOS) designed to image the CGM in emission via specific spectral lines (Lya, CIV, OVI) redshifted in a narrow UV band [1990 - 2130]A for the nearby universe (0.2< z <1). The optical design relies on a 1.2-meter moving siderostat that stabilizes the beam and reflects the light on a fixed paraboloid which in turn images it at the entrance of the payload. This payload is constituted of a focal corrector followed by a slit Multi-Object Spectrograph (reflective 2400 g/mm holographic aspherical grating located between two Schmidt mirrors). The objects selection is achieved with a series of pre-installed precision mask systems that also feed the fine guidance camera. The detector is a e2v electron multiplying CCD coated and delta-doped by the Jet Propulsion Laboratory. FIREBall-2 is funded by CNES and NASA and is developed in cooperation with a Franco-American consortium composed of LAM, CALTECH, Columbia University, JPL and CST-CNES. In this presentation, we describe the final ground calibration of the instrument. We explain what technical specifications ensue from the scientific goals of the mission and we will then highlight why this optical design has been chosen. The calibration of the instrument (alignment - through focus - distortion) will be presented followed by the analysis of the instrument scientific performances. We will then describe the improvement and the calibration of the ZEMAX-coupled instrument model developed at LAM, based on these final performances. This model is finally used to make an end-to-end prediction of the observations of the emission of the CGM from a large halo in a cosmological simulation.

SPIE Journal Paper | 1 September 2017

High-efficiency UV/optical/NIR detectors for large aperture telescopes and UV explorer missions: development of and field observations with delta-doped arrays

Shouleh Nikzad, April Jewell, Michael Hoenk, Todd Jones, John Hennessy, Tim Goodsall, Alexander Carver, Charles Shapiro, Samuel Cheng, Erika Hamden, Gillian Kyne, D. Christopher Martin, David Schiminovich, Paul Scowen, Kevin France, Stephan McCandliss, Roxana Lupu

JATIS, Vol. 3, Issue 03, 036002, (September 2017) https://doi.org/10.1117/12.10.1117/1.JATIS.3.3.036002

KEYWORDS: Sensors, Silicon, Charge-coupled devices, Ultraviolet radiation, Quantum efficiency, Telescopes, Space telescopes, Semiconducting wafers, Ultraviolet telescopes, Astronomical telescopes

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SPIE Journal Paper | 12 September 2016 Open Access

Charge-coupled devices detectors with high quantum efficiency at UV wavelengths

Erika Hamden, April Jewell, Charles Shapiro, Samuel Cheng, Timothy Goodsall, John Hennessy, Michael Hoenk, Todd Jones, Samuel Gordon, Hwei Ru Ong, David Schiminovich, D. Christopher Martin, Shouleh Nikzad

JATIS, Vol. 2, Issue 03, 036003, (September 2016) https://doi.org/10.1117/12.10.1117/1.JATIS.2.3.036003

KEYWORDS: Quantum efficiency, Silicon, Charge-coupled devices, Ultraviolet radiation, Absorption, Sensors, Reflectivity, Aluminum, Silica, Atomic layer deposition

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Proceedings Article | 1 August 2016 Paper

The faint intergalactic-medium red-shifted emission balloon: future UV observations with EMCCDs

Gillian Kyne, Erika Hamden, Nicole Lingner, Patrick Morrissey, Shouleh Nikzad, D. Christopher Martin

Proceedings Volume 9915, 991507 (2016) https://doi.org/10.1117/12.2232879

KEYWORDS: Electron multiplying charge coupled devices, Clocks, Charge-coupled devices, Sensors, Image storage, Ultraviolet radiation, Telescopes, Spectrographs, Temperature metrology, Galactic astronomy

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Proceedings Article | 18 July 2016 Paper

Fireball multi object spectrograph: as-built optic performances

R. Grange, B. Milliard, G. Lemaitre, S. Quiret, S. Pascal, A. Origné, E. Hamden, D. Schiminovich

Proceedings Volume 9905, 990531 (2016) https://doi.org/10.1117/12.2233267

KEYWORDS: Spectrographs, Ultraviolet radiation, Visible radiation, Image quality, Stars, Sensors, Polarimetry, Optical design, CCD image sensors, Charge-coupled devices

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Proceedings Article | 18 September 2015 Paper

Noise and dark performance for FIREBall-2 EMCCD delta-doped CCD detector

Erika Hamden, Nicole Lingner, Gillian Kyne, Patrick Morrissey, D. Christopher Martin

Proceedings Volume 9601, 96010O (2015) https://doi.org/10.1117/12.2190679

KEYWORDS: Clocks, Electron multiplying charge coupled devices, Sensors, Charge-coupled devices, Image storage, Microchannel plates, CCD image sensors, Copper, Ultraviolet radiation, Quantum efficiency

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Proceedings Article | 24 August 2015 Paper

Detector performance for the FIREBall-2 UV experiment

April Jewell, Erika Hamden, Hwei Ru Ong, John Hennessy, Timothy Goodsall, Charles Shapiro, Samuel Cheng, Todd Jones, Alexander Carver, Michael Hoenk, David Schiminovich, Christopher Martin, Shouleh Nikzad

Proceedings Volume 9601, 96010N (2015) https://doi.org/10.1117/12.2190167

KEYWORDS: Sensors, Atomic layer deposition, Ultraviolet radiation, Quantum efficiency, Semiconducting wafers, Electron multiplying charge coupled devices, Silicon, Reflectivity, Silica, Sensor performance

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Proceedings Article | 24 July 2014 Paper

High efficiency CCD detectors at UV wavelengths

Erika Hamden, April Jewell, Samuel Gordon, John Hennessy, Michael Hoenk, Shouleh Nikzad, David Schiminovich, D. Christopher Martin

Proceedings Volume 9144, 91442X (2014) https://doi.org/10.1117/12.2056204

KEYWORDS: Coating, Silica, Ultraviolet radiation, Spectrographs, Sensors, Charge-coupled devices, Quantum efficiency, Absorption, Silicon, Galactic astronomy

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Proceedings Article | 25 September 2012 Paper

UV photon-counting CCD detectors that enable the next generation of UV spectroscopy missions: AR coatings that can achieve 80-90% QE

Erika Hamden, Frank Greer, David Schiminovich, Shouleh Nikzad, D. Christopher Martin

Proceedings Volume 8453, 845309 (2012) https://doi.org/10.1117/12.927208

KEYWORDS: Quantum efficiency, Silica, Ultraviolet radiation, Silicon, Charge-coupled devices, Absorption, Sensors, Antireflective coatings, Magnesium fluoride, Atomic layer deposition

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