Dr. Charles D. Dowell Profile

Dr. Charles D. Dowell

Research Scientist at Jet Propulsion Lab

SPIE Involvement:

Author

Publications (45)

Proceedings Article | 24 August 2024 Presentation

Presentation

PRIMA: PRIMAger, a far infrared hyperspectral and polarimetric instrument

Laure Ciesla, Denis Burgarella, Charles Dowell, Marc Sauvage, Jochem Baselmans, Charles Bradford, Lorenza Ferrari, Johan Floriot, Jason Glenn, Matthew Griffin, Willem Jellema, Elizabeth Luthman, Laurent Martin, Tony Pamplona, Éric Prieto, Thomas Prouvé, Johannes Staguhn, Carole Tucker

Proceedings Volume 13092, 130920K (2024) https://doi.org/10.1117/12.3018739

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Proceedings Article | 24 August 2024 Presentation

Presentation

The far-infrared enhanced survey spectrometer (FIRESS) for PRIMA

Charles Bradford, Jason Glenn, Margaret Meixner, Klaus Pontoppidan, Alan Kogut, Alexandra Pope, Willem Jellema, Jochem Baselmans, David Naylor, Reinier Janssen, Steven Hailey-Dunsheath, Pierre Echternach, Peter Day, Henry LeDuc, Nicholas Cothard, Thomas Stevenson, Marc Foote, Charles Dowell, James McGuire, Michael Rodgers, Thomas Pagano, Logan Foote, Elijah Kane, Chris Albert

Proceedings Volume 13092, 130920L (2024) https://doi.org/10.1117/12.3019261

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Proceedings Article | 23 August 2024 Presentation + Paper

Presentation + Paper

The SPHEREx instrument optical integration and testing campaign overview

Phillip Korngut, James Bock, Samuel Condon, Charles Dowell, Howard Hui, Woong-Seob Jeong, Youngsoo Jo, Ken Manatt, Chi Nguyen, Hien Nguyen, Stephen Padin, Sung-Joon Park, Jeonghyun Pyo, Yujin Yang

Proceedings Volume 13092, 130920T (2024) https://doi.org/10.1117/12.3020511

KEYWORDS: Equipment, Telescopes, Vacuum chambers, Calibration, Staring arrays, Optical testing, Optical fabrication, Mirrors, Integrated optics

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Proceedings Article | 23 August 2024 Poster + Paper

Poster + Paper

Spectral response of the SPHEREx telescope

Howard Hui, Phillip Korngut, Samuel Condon, Chi Nguyen, Stephen Padin, Jamie Bock, Charles Dowell, Woong-Seob Jeong, Youngsoo Jo, Kenneth Manatt, Hien Nguyen, Sung-Joon Park, Jeonghyun Pyo, Yujin Yang

Proceedings Volume 13092, 130923N (2024) https://doi.org/10.1117/12.3018463

KEYWORDS: Sensors, Spectral response, Telescopes, Monochromators, Spectral resolution, Spectral calibration, Integrating spheres, Cryogenics

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Proceedings Article | 23 August 2024 Poster + Paper

Poster + Paper

How to tame your dragon’s breath: edge design to minimize scattered light from sources outside of SPHEREx field of view

Chi Nguyen, James Bock, Samuel Condon, C. Darren Dowell, Howard Hui, Phillip Korngut, Kenneth Manatt, Hien Nguyen, Stephen Padin

Proceedings Volume 13092, 130923M (2024) https://doi.org/10.1117/12.3018018

KEYWORDS: Sensors, Point spread functions, Light scattering, Design, Scattering, Telescopes, Detector arrays, Infrared Space Observatory, Infrared imaging, Infrared detectors

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Proceedings Article | 23 August 2024 Paper

Paper

PRIMA: science cases and requirements for the photometric and polarimetric PRIMAger far-infrared camera

Denis Burgarella, Laure Ciesla, Marc Sauvage, C. Darren Dowell, J. M. Donnellan, Marc Foote, Jason Glenn, Margaret Meixner, Jochem Baselmans, Laura Bisigello, Albert Bolatto, Matthieu Béthermin, Charles Bradford, Carlotta Gruppioni, Willem Jellema, Arielle Moullet, Seb Oliver, Tony Pamplona, Alex Pope

Proceedings Volume 13092, 130923B (2024) https://doi.org/10.1117/12.3018024

KEYWORDS: Polarimetry, Polarization, Radio astronomy, Observational astronomy, Galactic astronomy, Equipment, Cameras, Observatories, Metals, Lead

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Proceedings Article | 17 August 2024 Presentation

Presentation

PRIMA: demonstration of a high-efficiency 25-45 μm Linear Variable Filter for PRIMAger

Willem Jellema, Marcel Bruijn, Kenichiro Nagayoshi, Marcel Ridder, Nathalie Gorter, Martin Eggens, Erik van der Meer, Robert Huisman, Sven Visser, Sander van Loon, Sanghati Roy, Laure Ciesla, Denis Burgarella, Marc Sauvage, C. Darren Dowell, Jason Glenn

Proceedings Volume PC13102, PC1310210 (2024) https://doi.org/10.1117/12.3020634

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Proceedings Article | 29 August 2022 Presentation

Presentation

Spectral calibration of SPHEREx focal plane

Howard Hui, James Bock, Sam Condon, Charles Dowell, Matt Hollister, Phil Korngut, Ken Manatt, Chi Nguyen, Hien Nguyen, Steve Padin, Marco Viero

Proceedings Volume 12180, 121801J (2022) https://doi.org/10.1117/12.2628636

KEYWORDS: Spectral calibration, Sensors, Staring arrays, Spectroscopy, Spectral resolution, Ranging, Optical filters, Near infrared, Linear filtering, Integrating spheres

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

SPHEREx: NASA's near-infrared spectrophotometric all-sky survey

Brendan Crill, Michael Werner, Rachel Akeson, Matthew Ashby, Lindsey Bleem, James Bock, Sean Bryan, Jill Burnham, Joyce Byunh, Tzu-Ching Chang, Yi-Kuan Chiang, Walter Cook, Asantha Cooray, Andrew Davis, OIivier Doré, C. Darren Dowell, Gregory Dubois-Felsmann, Tim Eifler, Andreas Faisst, Salman Habib, Chen Heinrich, Katrin Heitmann, Grigory Heaton, Christopher Hirata, Viktor Hristov, Howard Hui, Woong-Seob Jeong, Jae Hwan Kang, Branislav Kecman, J. Davy Kirkpatrick, Phillip Korngut, Elisabeth Krause, Bomee Lee, Carey Lisse, Daniel Masters, Philip Mauskopf, Gary Melnick, Hiromasa Miyasaka, Hooshang Nayyeri, Hien Nguyen, Karin Öberg, Steve Padin, Roberta Paladini, Milad Pourrahmani, Jeonghyun Pyo, Roger Smith, Yong-Seong Song, Teresa Symons, Harry Teplitz, Volker Tolls, Steve Unwin, Rogier Windhorst, Yujin Yang, Michael Zemcov

Proceedings Volume 11443, 114430I (2020) https://doi.org/10.1117/12.2567224

KEYWORDS: Galactic astronomy, Telescopes, Astrophysics, Spectral resolution, Absorption, Stars, Spectroscopes, Detector arrays, Beam splitters, Optical filters

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Proceedings Article | 19 August 2014 Paper

Paper

SWCam: the short wavelength camera for the CCAT Observatory

Gordon Stacey, Stephen Parshley, Thomas Nikola, German Cortes-Medellin, Justin Schoenwald, Ganesh Rajagopalan, Michael Niemack, Tim Jenness, Patricio Gallardo, Brian Koopman, Charles Dowell, Peter Day, Matthew Hollister, Attila Kovacs, Henry LeDuc, Christopher McKenney, Ryan Monroe, Hiroshige Yoshida, Jonas Zmuidzinas, Loren Swenson, Simon Radford, Hien Trong Nguyen, Anthony Mroczkowski, Jason Glenn, Jordan Wheeler, Philip Maloney, Spencer Brugger, Joseph Adams, Frank Bertoldi, Reinhold Schaaf, Mark Halpern, Douglas Scott, Galen Marsden, Jack Sayers, Scott Chapman, Joaquin Vieira

Proceedings Volume 9153, 91530L (2014) https://doi.org/10.1117/12.2057101

KEYWORDS: Cameras, Galactic astronomy, Sensors, Silicon, Stars, Thin film coatings, Telescopes, Deep reactive ion etching, Surface conduction electron emitter displays, Observatories

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We describe the Short Wavelength Camera (SWCam) for the CCAT observatory including the primary science drivers, the coupling of the science drivers to the instrument requirements, the resulting implementation of the design, and its performance expectations at first light. CCAT is a 25 m submillimeter telescope planned to operate at 5600 meters, near the summit of Cerro Chajnantor in the Atacama Desert in northern Chile. CCAT is designed to give a total wave front error of 12.5 μm rms, so that combined with its high and exceptionally dry site, the facility will provide unsurpassed point source sensitivity deep into the short submillimeter bands to wavelengths as short as the 200 μm telluric window. The SWCam system consists of 7 sub-cameras that address 4 different telluric windows: 4 subcameras at 350 μm, 1 at 450 μm, 1 at 850 μm, and 1 at 2 mm wavelength. Each sub-camera has a 6’ diameter field of view, so that the total instantaneous field of view for SWCam is equivalent to a 16’ diameter circle. Each focal plane is populated with near unit filling factor arrays of Lumped Element Kinetic Inductance Detectors (LEKIDs) with pixels scaled to subtend an solid angle of (λ/D)2 on the sky. The total pixel count is 57,160. We expect background limited performance at each wavelength, and to be able to map < 35(°)2 of sky to 5 σ on the confusion noise at each wavelength per year with this first light instrument. Our primary science goal is to resolve the Cosmic Far-IR Background (CIRB) in our four colors so that we may explore the star and galaxy formation history of the Universe extending to within 500 million years of the Big Bang. CCAT's large and high-accuracy aperture, its fast slewing speed, use of instruments with large format arrays, and being located at a superb site enables mapping speeds of up to three orders of magnitude larger than contemporary or near future facilities and makes it uniquely sensitive, especially in the short submm bands.

Proceedings Article | 19 August 2014 Paper

Paper

Keck array and BICEP3: spectral characterization of 5000+ detectors

K. Karkare, P. A. Ade, Z. Ahmed, R. Aikin, K. Alexander, M. Amiri, D. Barkats, S. Benton, C. Bischoff, J. Bock, J. Bonetti, J. Brevik, I. Buder, E. Bullock, B. Burger, J. Connors, B. Crill, G. Davis, C. Dowell, L. Duband, J. Filippini, S. Fliescher, S. Golwala, M. Gordon, J. Grayson, M. Halpern, M. Hasselfield, S. Hildebrandt, G. Hilton, V. Hristov, H. Hui, K. Irwin, J. Kang, E. Karpel, S. Kefeli, S. Kernasovskiy, J. Kovac, C. Kuo, E. Leitch, M. Lueker, P. Mason, K. Megerian, C. Netterfield, H. Nguyen, R. O'Brient, R. Ogburn, C. Pryke, C. Reintsema, S. Richter, R. Schwarz, C. Sheehy, Z. Staniszewski, R. Sudiwala, G. Teply, K. Thompson, J. Tolan, A. Turner, A. Vieregg, A. Weber, C. Wong, W. L. Wu, K. Yoon

Proceedings Volume 9153, 91533B (2014) https://doi.org/10.1117/12.2056779

KEYWORDS: Sensors, Receivers, Fourier transforms, Polarization, Atmospheric modeling, Calibration, Atmospheric sensing, Signal detection, Physics, Microwave radiation

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Proceedings Article | 19 August 2014 Paper

Paper

BICEP2 and Keck array: upgrades and improved beam characterization

I. Buder, P. A. Ade, Z. Ahmed, R. Aikin, K. Alexander, M. Amiri, D. Barkats, S. Benton, C. Bischoff, J. Bock, J. Bonetti, J. Brevik, E. Bullock, B. Burger, B. Crill, G. Davis, C. Dowell, L. Duband, J. Filippini, S. Fliescher, S. Golwala, M. Gordon, M. Halpern, M. Hasselfield, S. Hildebrandt, G. Hilton, V. Hristov, H. Hui, K. Irwin, K. Karkare, J. Kaufman, B. Keating, S. Kefeli, S. Kernasovskiy, J. Kovac, C. Kuo, E. Leitch, M. Lueker, P. Mason, K. Megerian, C. Netterfield, H. Nguyen, R. O’Brient, R. Ogburn, A. Orlando, C. Pryke, C. Reintsema, S. Richter, R. Schwarz, C. Sheehy, Z. Staniszewski, R. Sudiwala, G. Teply, K. Thompson, J. Tolan, A. Turner, A. Vieregg, A. Weber, D. Wiebe, P. Wilson, C. Wong, K. Yoon

Proceedings Volume 9153, 915312 (2014) https://doi.org/10.1117/12.2055713

KEYWORDS: Telescopes, Sensors, Polarization, Receivers, Microwave radiation, Mirrors, Physics, Space telescopes, Optical testing, Optical simulations

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Proceedings Article | 31 July 2014 Paper

Paper

SOFIA science instruments: commissioning, upgrades and future opportunities

Erin Smith, John Miles, L. Andrew Helton, Ravi Sankrit, B. Andersson, Eric Becklin, James De Buizer, C. Dowell, Edward Dunham, Rolf Güsten, Doyal Harper, Terry Herter, Luke Keller, Randolf Klein, Alfred Krabbe, Sarah Logsdon, Pamela Marcum, Ian McLean, William Reach, Matthew Richter, Thomas Roellig, Göran Sandell, Maureen Savage, Pasquale Temi, William Vacca, John Vaillancourt, Jeffrey Van Cleve, Erick Young

Proceedings Volume 9147, 914706 (2014) https://doi.org/10.1117/12.2056942

KEYWORDS: Spectroscopy, Observatories, Imaging spectroscopy, Infrared spectroscopy, Sensors, Infrared cameras, Spectroscopes, Cameras, Radio astronomy, Astronomy

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Proceedings Article | 23 July 2014 Paper

Paper

Antireflection coatings for submillimeter silicon lenses

Jordan Wheeler, Brian Koopman, Patricio Gallardo, Philip Maloney, Spencer Brugger, German Cortes-Medellin, Rahul Datta, C. Darren Dowell, Jason Glenn, Sunil Golwala, Chris McKenney, Jeffery McMahon, Charles Munson, Mike Niemack, Stephen Parshley, Gordon Stacey

Proceedings Volume 9153, 91532Z (2014) https://doi.org/10.1117/12.2057011

KEYWORDS: Silicon, Antireflective coatings, Coating, Terahertz radiation, Deep reactive ion etching, Lenses, Dielectrics, Absorption, Interfaces, Etching

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Proceedings Article | 19 September 2013 Paper

Paper

Capabilities, performance, and status of the SOFIA science instrument suite

John Miles, L. Andrew Helton, Ravi Sankrit, B. Andersson, E. Becklin, James De Buizer, C. Dowell, Edward Dunham, Rolf Güsten, Doyal Harper, Terry Herter, Luke Keller, Randolf Klein, Alfred Krabbe, Pamela Marcum, Ian McLean, William Reach, Matthew Richter, Thomas Roellig, Göran Sandell, Maureen Savage, Erin Smith, Pasquale Temi, William Vacca, John Vaillancourt, Jeffery Van Cleve, Erick Young, Peter Zell

Proceedings Volume 8867, 88670N (2013) https://doi.org/10.1117/12.2022791

KEYWORDS: Spectroscopy, Telescopes, Observatories, Stars, Sensors, Imaging systems, Astronomy, Photometry, Infrared telescopes, Infrared radiation

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Proceedings Article | 27 September 2012 Paper

Paper

BICEP2 and Keck Array operational overview and status of observations

R. Ogburn, P. A. Ade, R. Aikin, M. Amiri, S. Benton, C. Bischoff, J. Bock, J. Bonetti, J. Brevik, E. Bullock, B. Burger, G. Davis, C. Dowell, L. Duband, J. Filippini, S. Fliescher, S. Golwala, M. Gordon, M. Halpern, M. Hasselfield, G. Hilton, V. Hristov, H. Hui, K. Irwin, J. Kaufman, B. Keating, S. Kernasovskiy, J. Kovac, C. Kuo, E. Leitch, M. Lueker, T. Montroy, C. Netterfield, H. Nguyen, R. O'Brient, A. Orlando, C. Pryke, C. Reintsema, S. Richter, J. Ruhl, M. Runyan, R. Schwarz, C. Sheehy, Z. Staniszewski, R. Sudiwala, G. Teply, K. Thompson, J. Tolan, A. Turner, A. Vieregg, D. Wiebe, P. Wilson, C. Wong

Proceedings Volume 8452, 84521A (2012) https://doi.org/10.1117/12.925731

KEYWORDS: Sensors, Receivers, Multiplexing, Polarization, Telescopes, Staring arrays, Microwave radiation, Liquids, Helium, Cryogenics

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Proceedings Article | 27 September 2012 Paper

Paper

Optimization and sensitivity of the Keck array

S. Kernasovskiy, P. A. R. Ade, R. Aikin, M. Amiri, S. Benton, C. Bischoff, J. Bock, J. Bonetti, J. Brevik, B. Burger, G. Davis, C. Dowell, L. Duband, J. Filippini, S. Fliescher, S. Golwala, M. Halpern, M. Hasselfield, G. Hilton, V. Hristov, K. Irwin, J. Kovac, C. Kuo, E. Leitch, M. Lueker, C. Netterfield, H. Nguyen, R. O'Brient, R. Ogburn, C. Pryke, C. Reintsema, J. Ruhl, M. Runyan, R. Schwarz, C. Sheehy, Z. Staniszewski, R. Sudiwala, G. Teply, J. Tolan, A. Turner, A. Vieregg, D. Wiebe, P. Wilson, C. Wong

Proceedings Volume 8452, 84521B (2012) https://doi.org/10.1117/12.926934

KEYWORDS: Sensors, Polarization, Multiplexing, Receivers, Telescopes, Calibration, Resistance, Servomechanisms, Switches, Phonons

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Proceedings Article | 27 September 2012 Paper

Paper

Antenna-coupled TES bolometers for the Keck array, Spider, and Polar-1

R. O'Brient, P. A. Ade, Z. Ahmed, R. Aikin, M. Amiri, S. Benton, C. Bischoff, J. Bock, J. Bonetti, J. Brevik, B. Burger, G. Davis, P. Day, C. Dowell, L. Duband, J. Filippini, S. Fliescher, S. Golwala, J. Grayson, M. Halpern, M. Hasselfield, G. Hilton, V. Hristov, H. Hui, K. Irwin, S. Kernasovskiy, J. Kovac, C. Kuo, E. Leitch, M. Lueker, K. Megerian, L. Moncelsi, C. Netterfield, H. Nguyen, R. Ogburn, C. Pryke, C. Reintsema, J. Ruhl, M. Runyan, R. Schwarz, C. Sheehy, Z. Staniszewski, R. Sudiwala, G. Teply, J. Tolan, A. Turner, R. Tucker, A. Vieregg, D. Wiebe, P. Wilson, C. Wong, W. L. Wu, K. Yoon

Proceedings Volume 8452, 84521G (2012) https://doi.org/10.1117/12.927214

KEYWORDS: Polarization, Antennas, Niobium, Sensors, Bolometers, Cameras, Phased array optics, Near field, Scattering, Physics

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Proceedings Article | 24 September 2012 Paper

Paper

MAKO: a pathfinder instrument for on-sky demonstration of low-cost 350 micron imaging arrays

Loren Swenson, Peter Day, Charles Dowell, Byeong Eom, Matthew Hollister, Robert Jarnot, Attila Kovács, Henry Leduc, Christopher McKenney, Ryan Monroe, Tony Mroczkowski, Hien Nguyen, Jonas Zmuidzinas

Proceedings Volume 8452, 84520P (2012) https://doi.org/10.1117/12.926223

KEYWORDS: Sensors, Multiplexing, Resonators, Superconductors, Head, Amplifiers, Optical filters, Imaging arrays, Microresonators, Detector arrays

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Proceedings Article | 24 September 2012 Paper

Paper

Optical characterization of the Keck array polarimeter at the South Pole

A. G. Vieregg, P. A. R. Ade, R. Aikin, C. Bischoff, J. J. Bock, J. A. Bonetti, K. J. Bradford, J. A. Brevik, C. D. Dowell, L. Duband, J. P. Filippini, S. Fliescher, S. R. Golwala, M. S. Gordon, M. Halpern, G. Hilton, V. V. Hristov, K. Irwin, S. Kernasovskiy, J. M. Kovac, C. L. Kuo, E. Leitch, M. Lueker, T. Montroy, C. B. Netterfield, H. T. Nguyen, R. O'Brient, R. W. Ogburn, C. Pryke, J. E. Ruhl, M. Runyan, R. Schwarz, C. Sheehy, Z. Staniszewski, R. Sudiwala, G. Teply, J. Tolan, A. D. Turner, P. Wilson, C. L. Wong

Proceedings Volume 8452, 845226 (2012) https://doi.org/10.1117/12.926639

KEYWORDS: Sensors, Receivers, Polarization, Optical testing, Microwave radiation, Mirrors, Polarimetry, Control systems, Beam shaping, Telescopes

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Proceedings Article | 11 August 2010 Paper

Paper

Status of the SPIRE photometer data processing pipelines during the early phases of the Herschel Mission

C. Darren Dowell, Michael Pohlen, Chris Pearson, Matt Griffin, Tanya Lim, George Bendo, Dominique Benielli, James Bock, Pierre Chanial, Dave Clements, Luca Conversi, Marc Ferlet, Trevor Fulton, Rene Gastaud, Jason Glenn, Tim Grundy, Steve Guest, Ken King, Sarah Leeks, Louis Levenson, Nanyao Lu, Huw Morris, Hien Nguyen, Brian O'Halloran, Seb Oliver, Pasquale Panuzzo, Andreas Papageorgiou, Edward Polehampton, Dimitra Rigopoulou, Helene Roussel, Nicola Schneider, Bernhard Schulz, Arnold Schwartz, David Shupe, Bruce Sibthorpe, Sunil Sidher, Anthony Smith, Bruce Swinyard, Markos Trichas, Ivan Valtchanov, Adam Woodcraft, C. Kevin Xu, Lijun Zhang

Proceedings Volume 7731, 773136 (2010) https://doi.org/10.1117/12.858035

KEYWORDS: Sensors, Bolometers, Photometry, Calibration, Signal detection, Telescopes, Space telescopes, Data processing, Astronomy, Detector arrays

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Proceedings Article | 6 August 2010 Paper

Paper

Optical design of the EPIC-IM crossed Dragone telescope

Huan Tran, Brad Johnson, Mark Dragovan, James Bock, Abdullah Aljabri, Alex Amblard, Daniel Bauman, Marc Betoule, Talso Chui, Loris Colombo, Asantha Cooray, Dustin Crumb, Peter Day, Clive Dickenson, Darren Dowell, Sunil Golwala, Krzysztof Gorski, Shaul Hanany, Warren Holmes, Kent Irwin, Brian Keating, Chao-Lin Kuo, Adrian Lee, Andrew Lange, Charles Lawrence, Steve Meyer, Nate Miller, Hien Nguyen, Elena Pierpaoli, Nicolas Ponthieu, Jean-Loup Puget, Jeff Raab, Paul Richards, Celeste Satter, Mike Seiffert, Meir Shimon, Brett Williams, Jonas Zmuidzinas

Proceedings Volume 7731, 77311R (2010) https://doi.org/10.1117/12.857423

KEYWORDS: Polarization, Telescopes, Mirrors, Device simulation, Optical simulations, Optical design, Space telescopes, Sensors, Space operations, Geometrical optics

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Proceedings Article | 21 July 2010 Paper

Paper

HAWCPol: a first-generation far-infrared polarimeter for SOFIA

C. Darren Dowell, Brant Cook, D. Al Harper, Lung-Sheng Lin, Leslie Looney, Giles Novak, Ian Stephens, Marc Berthoud, David Chuss, Richard Crutcher, Jessie Dotson, Roger Hildebrand, Martin Houde, Terry Jones, Megan Krejny, Alexandre Lazarian, S. Harvey Moseley, Kostas Tassis, John Vaillancourt, Michael Werner

Proceedings Volume 7735, 77356H (2010) https://doi.org/10.1117/12.857842

KEYWORDS: Polarimetry, Polarization, Magnetism, Clouds, Cryogenics, Astronomy, Cameras, Sensors, Data analysis, Modulation

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Proceedings Article | 15 July 2010 Paper

Paper

Initial performance of the BICEP2 antenna-coupled superconducting bolometers at the South Pole

J. Brevik, R. Aikin, M. Amiri, S. Benton, J. Bock, J. Bonetti, B. Burger, C. Dowell, L. Duband, J. Filippini, S. Golwala, M. Halpern, M. Hasselfield, G. Hilton, V. Hristov, K. Irwin, J. Kaufman, B. Keating, J. Kovac, C. L. Kuo, A. Lange, E. Leitch, C. Netterfield, H. Nguyen, R. Ogburn, A. Orlando, C. Pryke, C. Reintsema, S. Richter, J. Ruhl, M. Runyan, C. Sheehy, Z. Staniszewski, R. Sudiwala, J. E. Tolan, A. Turner, P. Wilson, C. L. Wong

Proceedings Volume 7741, 77411H (2010) https://doi.org/10.1117/12.857861

KEYWORDS: Sensors, Bolometers, Polarization, Superconductors, Multiplexing, Multiplexers, Antennas, Optical amplifiers, Optical filters, Gold

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Proceedings Article | 15 July 2010 Paper

Paper

Optical performance of the BICEP2 Telescope at the South Pole

Randol Aikin, P. Ade, S. Benton, J. Bock, J. Bonetti, J. Brevik, C. Dowell, L. Duband, J. Filippini, S. Golwala, M. Halpern, V. Hristov, K. Irwin, J. Kaufman, B. Keating, J. Kovac, C. L. Kuo, A. Lange, C. Netterfield, H. T. Nguyen, R. W. Ogburn, A. Orlando, C. Pryke, S. Richter, J. Ruhl, M. Runyan, C. Sheehy, S. Stokes, R. Sudiwala, G. P. Teply, J. E. Tolan, A. Turner, P. Wilson, C. L. Wong

Proceedings Volume 7741, 77410V (2010) https://doi.org/10.1117/12.857868

KEYWORDS: Polarization, Telescopes, Near field optics, Sensors, Microwave radiation, Optical design, Phased array optics, Optical testing, Near field, Optical simulations

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Proceedings Article | 15 July 2010 Paper

Paper

Absolute polarization angle calibration using polarized diffuse Galactic emission observed by BICEP

Tomotake Matsumura, Peter Ade, Denis Barkats, Darcy Barron, John Battle, Evan Bierman, James Bock, H. Cynthia Chiang, Brendan Crill, C. Darren Dowell, Lionel Duband, Eric Hivon, William Holzapfel, Viktor Hristov, William Jones, Brian Keating, John Kovac, Chao-lin Kuo, Andrew Lange, Erik Leitch, Peter Mason, Hien Nguyen, Nicolas Ponthieu, Clem Pryke, Steffen Richter, Graca Rocha, Yuki Takahashi, Ki Won Yoon

Proceedings Volume 7741, 77412O (2010) https://doi.org/10.1117/12.856855

KEYWORDS: Polarization, Calibration, Polarimetry, Error analysis, Interference (communication), Telescopes, Sensors, Galactic astronomy, Linear filtering, Bolometers

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Proceedings Article | 15 July 2010 Paper

Paper

The BICEP2 CMB polarization experiment

R. W. Ogburn, P. Ade, R. Aikin, M. Amiri, S. Benton, J. Bock, J. Bonetti, J. Brevik, B. Burger, C. Dowell, L. Duband, J. Filippini, S. Golwala, M. Halpern, M. Hasselfield, G. Hilton, V. Hristov, K. Irwin, J. Kaufman, B. Keating, J. Kovac, C. Kuo, A. Lange, E. Leitch, C. Netterfield, H. Nguyen, A. Orlando, C. Pryke, C. Reintsema, S. Richter, J. Ruhl, M. Runyan, C. Sheehy, Z. Staniszewski, S. Stokes, R. Sudiwala, G. P. Teply, J. E. Tolan, A. Turner, P. Wilson, C. L. Wong

Proceedings Volume 7741, 77411G (2010) https://doi.org/10.1117/12.857864

KEYWORDS: Sensors, Magnetism, Polarization, Telescopes, Multiplexing, Calibration, Cryogenics, Microwave radiation, Antennas, Physics

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Proceedings Article | 15 July 2010 Paper

Paper

The Keck Array: a pulse tube cooled CMB polarimeter

C. Sheehy, P. Ade, R. Aikin, M. Amiri, S. Benton, C. Bischoff, J. Bock, J. Bonetti, J. Brevik, B. Burger, C. Dowell, L. Duband, J. Filippini, S. Golwala, M. Halpern, M. Hasselfield, G. Hilton, V. Hristov, K. Irwin, J. Kaufman, B. Keating, J. Kovac, C. L. Kuo, A. Lange, E. Leitch, M. Lueker, C. Netterfield, H. T. Nguyen, R. Ogburn, A. Orlando, C. L. Pryke, C. Reintsema, S. Richter, J. Ruhl, M. Runyan, Z. Staniszewski, S. Stokes, R. Sudiwala, G. Teply, K. Thompson, J. E. Tolan, A. Turner, P. Wilson, C. L. Wong

Proceedings Volume 7741, 77411R (2010) https://doi.org/10.1117/12.857871

KEYWORDS: Sensors, Aluminum, Receivers, Magnetism, Liquids, Carbon, Polarization, Titanium, Polarimetry, Helium

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Proceedings Article | 21 July 2008 Paper

Paper

BICEP2/SPUD: searching for inflation with degree scale polarimetry from the South Pole

Hien Trong Nguyen, John Kovac, Peter Ade, Randol Aikin, Steve Benton, James Bock, Justus Brevik, John Carlstrom, Darren Dowell, Lionel Duband, Sunil Golwala, Mark Halpern, Matthew Hasslefield, Kent Irwin, William Jones, Jonathan Kaufman, Brian Keating, Chao-Lin Kuo, Andrew Lange, Tomotake Matsumura, Barth Netterfield, Clem Pryke, John Ruhl, Chris Sheehy, Rashmi Sudiwala

Proceedings Volume 7020, 70201F (2008) https://doi.org/10.1117/12.787997

KEYWORDS: Polarization, Receivers, Sensors, Magnetism, Signal detection, Telescopes, Antennas, Polarimetry, Microwave radiation, Staring arrays

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Proceedings Article | 19 July 2008 Paper

Paper

CMB polarimetry with BICEP: instrument characterization, calibration, and performance

Yuki Takahashi, Denis Barkats, John Battle, Evan Bierman, James Bock, H. Cynthia Chiang, C. Darren Dowell, Eric Hivon, William Holzapfel, Viktor Hristov, William Jones, J. Kaufman, Brian Keating, John Kovac, Chao-Lin Kuo, Andrew Lange, Erik Leitch, Peter Mason, Tomotake Matsumura, Hien Nguyen, Nicolas Ponthieu, Graca Rocha, Ki Won Yoon, P. Ade, L. Duband

Proceedings Volume 7020, 70201D (2008) https://doi.org/10.1117/12.790306

KEYWORDS: Calibration, Telescopes, Polarization, Sensors, Bolometers, Dielectric polarization, Contamination, Anisotropy, Temperature metrology, Stars

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Proceedings Article | 18 July 2008 Paper

Paper

Noise performance of the Herschel-SPIRE bolometers during instrument ground tests

Bernhard Schulz, James Bock, Nanyao Lu, Hien Nguyen, C. Kevin Xu, Lijun Zhang, C. Darren Dowell, Matthew Griffin, Glenn Laurent, Tanya Lim, Bruce Swinyard

Proceedings Volume 7020, 702022 (2008) https://doi.org/10.1117/12.790163

KEYWORDS: Bolometers, Photometry, Spectroscopy, Sensors, Temperature metrology, Field effect transistors, Data modeling, Signal detection, Interference (communication), Smoothing

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Proceedings Article | 12 July 2008 Paper

Paper

The Herschel-SPIRE photometer data processing pipeline

Matt Griffin, C. Darren Dowell, Tanya Lim, George Bendo, Jamie Bock, Christophe Cara, Nieves Castro-Rodriguez, Pierre Chanial, Dave Clements, Rene Gastaud, Steve Guest, Jason Glenn, Victor Hristov, Ken King, Glenn Laurent, Nanyao Lu, Gabrielle Mainetti, Huw Morris, Hien Nguyen, Pasquale Panuzzo, Chris Pearson, Frederic Pinsard, Michael Pohlen, Edward Polehampton, Davide Rizzo, Bernhard Schulz, Arnold Schwartz, Bruce Sibthorpe, Bruce Swinyard, Kevin Xu, Lijun Zhang

Proceedings Volume 7010, 70102Q (2008) https://doi.org/10.1117/12.788431

KEYWORDS: Sensors, Bolometers, Astronomy, Photometry, Signal detection, Calibration, Telescopes, Data processing, Electronics, Linear filtering

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Proceedings Article | 12 July 2008 Paper

Paper

Herschel-SPIRE: design, ground test results, and predicted performance

Matt Griffin, Bruce Swinyard, Laurent Vigroux, Alain Abergel, Peter Ade, Philippe André, Jean-Paul Baluteau, James Bock, Alberto Franceschini, Walter Gear, Jason Glenn, Maohai Huang, Douglas Griffin, Ken King, Emmanuel Lellouch, David Naylor, Seb Oliver, Göran Olofsson, Ismael Perez-Fournon, Mat Page, Michael Rowan-Robinson, Paolo Saraceno, Eric Sawyer, Gillian Wright, Annie Zavagno, Asier Abreu, George Bendo, Alan Dowell, Darren Dowell, Marc Ferlet, Trevor Fulton, Peter Hargrave, Glenn Laurent, Sarah Leeks, Tanya Lim, Nanyao Lu, Hien Nguyen, Alan Pearce, Edward Polehampton, Davide Rizzo, Bernhard Schulz, Sunil Sidher, Dave Smith, Locke Spencer, Ivan Valtchanov, Adam Woodcraft, Kevin Xu, Lijun Zhang

Proceedings Volume 7010, 701006 (2008) https://doi.org/10.1117/12.788312

KEYWORDS: Photometry, Fourier transforms, Sensors, Telescopes, Spectroscopy, Mirrors, Space telescopes, Bolometers, Detector arrays, Spectral resolution

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Proceedings Article | 26 September 2007 Paper

Paper

Far-infrared polarimetry from the Stratospheric Observatory for Infrared Astronomy

John Vaillancourt, David Chuss, Richard Crutcher, Jessie Dotson, C. Darren Dowell, D. Al Harper, Roger Hildebrand, Terry Jones, Alexandre Lazarian, Giles Novak, Michael Werner

Proceedings Volume 6678, 66780D (2007) https://doi.org/10.1117/12.730922

KEYWORDS: Polarization, Polarimetry, Magnetism, Sensors, Modulation, Clouds, Stars, Cameras, Mirrors, Observatories

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Proceedings Article | 6 July 2006 Paper

Paper

Instrumentation for the CCAT Telescope

G. Stacey, S. Golwala, C. Bradford, C. Dowell, G. Cortes-Medellin, T. Nikola, J. Zmuidzinas, T. Herter, S. Radford, J. Lloyd, A. Blain, R. Brown, D. Campbell, R. Giovanelli, P. Goldsmith, P. Harvey, C. Henderson, W. Langer, T. Phillips, A. C. S. Readhead, D. Woody

Proceedings Volume 6275, 62751G (2006) https://doi.org/10.1117/12.672176

KEYWORDS: Cameras, Sensors, Telescopes, Spectrometers, Multiplexing, Receivers, Bolometers, Antennas, Mirrors, Polarization

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Proceedings Article | 6 July 2006 Paper

Paper

SHARP: the SHARC-II polarimeter for CSO

H. Li, M. Attard, C. Dowell, R. Hildebrand, M. Houde, L. Kirby, G. Novak, J. Vaillancourt

Proceedings Volume 6275, 62751H (2006) https://doi.org/10.1117/12.671591

KEYWORDS: Polarimetry, Polarization, Mirrors, Cameras, Telescopes, Beam splitters, Bolometers, Interference (communication), Detector arrays, Mars

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Proceedings Article | 27 June 2006 Paper

Paper

The Robinson Gravitational Wave Background Telescope (BICEP): a bolometric large angular scale CMB polarimeter

K. Yoon, P. Ade, D. Barkats, J. Battle, E. Bierman, J. Bock, J. Brevik, H. Chiang, A. Crites, C. Dowell, L. Duband, G. Griffin, E. Hivon, W. Holzapfel, V. Hristov, B. Keating, J. Kovac, C. Kuo, A. Lange, E. Leitch, P. Mason, H. Nguyen, N. Ponthieu, Y. Takahashi, T. Renbarger, L. Weintraub, D. Woolsey

Proceedings Volume 6275, 62751K (2006) https://doi.org/10.1117/12.672652

KEYWORDS: Polarization, Telescopes, Bolometers, Calibration, Sensors, Optical filters, Dielectric polarization, Anisotropy, Receivers, Field effect transistors

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Proceedings Article | 27 June 2006 Paper

Paper

Distributed antenna-coupled transition edge sensors

Peter Day, Henry LeDuc, Richard Lee, C. Darren Dowell, Jonas Zmuidzinas

Proceedings Volume 6275, 62751R (2006) https://doi.org/10.1117/12.672690

KEYWORDS: Antennas, Sensors, Microbolometers, Polarization, Staring arrays, Dielectrics, Resistance, Linear filtering, Cryogenics, Bolometers

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Proceedings Article | 8 October 2004 Paper

Paper

A polarimetry module for CSO/SHARC-II

Giles Novak, David Chuss, Jacqueline Davidson, Jessie Dotson, Charles Dowell, Roger Hildebrand, Martin Houde, Larry Kirby, Megan Krejny, Alex Lazarian, Hua-bai Li, S. Moseley, John Vaillancourt, Farhad Yusef-Zadeh

Proceedings Volume 5498, (2004) https://doi.org/10.1117/12.553076

KEYWORDS: Polarimetry, Polarization, Telescopes, Mirrors, Cameras, Bolometers, Optical design, Relays, Astronomy, Spatial resolution

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Proceedings Article | 8 October 2004 Paper

Paper

A two-dimensional semiconducting bolometer array for HAWC

George Voellmer, Christine Allen, Sachidananda Babu, Arlin Bartels, Charles Dowell, Jessie Dotson, Doyle Harper, S. Moseley, Timothy Rennick, Peter Shirron, W. Smith, Edward Wollack

Proceedings Volume 5498, (2004) https://doi.org/10.1117/12.552016

KEYWORDS: Field effect transistors, Bolometers, Sensors, Copper, Silicon, Ceramics, Connectors, Metals, Titanium, Semiconductors

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Proceedings Article | 8 October 2004 Paper

Paper

Two bolometer arrays for far-infrared and submillimeter astronomy

Robert Silverberg, Christine Allen, Sachidananda Babu, Dominic Benford, David Chuss, Jessie Dotson, Charles Dowell, Doyle Harper, Murzy Jhabvala, Robert Loewenstein, S. Moseley, Johannes Staguhn, George Voellmer, Edward Wollack

Proceedings Volume 5498, (2004) https://doi.org/10.1117/12.552422

KEYWORDS: Bolometers, Sensors, Cameras, Observatories, Spatial resolution, Amplifiers, Absorption, Astronomy, Semiconductors, Field effect transistors

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Proceedings Article | 8 October 2004 Paper

Paper

Far-infrared/submillimeter imager-polarimeter using distributed antenna-coupled transition edge sensors

Peter Day, Henry LeDuc, Alexey Goldin, Charles Dowell, Jonas Zmuidzinas

Proceedings Volume 5498, (2004) https://doi.org/10.1117/12.552440

KEYWORDS: Sensors, Antennas, Polarization, Microbolometers, Bolometers, Resistance, Multiplexers, Infrared sensors, Cameras, Far infrared

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Proceedings Article | 17 February 2003 Paper

Paper

SHARC II: a Caltech Submillimeter Observatory facility camera with 384 pixels

Charles Dowell, Christine Allen, R. Sachidananda Babu, Minoru Freund, Matthew Gardner, Jeff Groseth, Murzy Jhabvala, Attila Kovacs, Dariusz Lis, Samuel Moseley, Thomas Phillips, Robert Silverberg, George Voellmer, Hiroshige Yoshida

Proceedings Volume 4855, (2003) https://doi.org/10.1117/12.459360

KEYWORDS: Bolometers, Sensors, Field effect transistors, Resistors, Helium, Liquids, Resistance, Cameras, Silicon, Telescopes

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Proceedings Article | 14 February 2003 Paper

Paper

Hale: a multiwavelength far-infrared polarimeter for SOFIA

Charles Dowell, J. Davidson, Jessie Dotson, Roger Hildebrand, Giles Novak, Timothy Rennick, John Vaillancourt

Proceedings Volume 4843, (2003) https://doi.org/10.1117/12.458645

KEYWORDS: Polarization, Polarimetry, Clouds, Magnetism, Detector arrays, Stars, Sensors, Astronomy, Beam splitters, Physics

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Proceedings Article | 31 July 1998 Paper

Paper

Hertz: an imaging polarimeter

Roger Hildebrand, Jessie Dotson, Charles Dowell, Giles Novak, David Schleuning, J. Vaillancourt

Proceedings Volume 3357, (1998) https://doi.org/10.1117/12.317364

KEYWORDS: Polarization, Polarimetry, Telescopes, Clouds, Error analysis, Observatories, Sensors, Astronomy, Magnetism, Signal detection

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Showing 5 of 45 publications

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