Dr. Sara M. Simon Profile

Dr. Sara M. Simon

Scientist

SPIE Involvement:

Author

Publications (17)

SPIE Journal Paper | 19 November 2024

Design and validation of a cold load for characterization of cosmic microwave background stage 4 detectors

Cesiley King, Ian Gullett, Adam Anderson, Bradford Benson, Rick Bihary, Haichen Fan, Johanna Nagy, Hogan Nguyen, John Ruhl, Sara Simon

JATIS, Vol. 10, Issue 04, 048003, (November 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.4.048003

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Proceedings Article | 17 August 2024 Poster

Development and testing of the frequency-selectable laser source (FLS) for Simons Observatory bandpass calibration

Shreya Sutariya, Kathleen Harrington, Carlos Sierra, Erin Healy, Sara Simon, Thomas Alford, Claire Lessler, Jeff McMahon

Proceedings Volume PC13102, PC1310223 (2024) https://doi.org/10.1117/12.3021145

Proceedings Article | 16 August 2024 Poster + Paper

Design and validation of a cold load for characterization of CMB-S4 detectors

Cesiley King, Ian Gullett, Adam Anderson, Bradford Benson, Rick Bihary, Haichen Fan, Johanna Nagy, Hogan Nguyen, John Ruhl, Sara Simon

Proceedings Volume 13102, 1310218 (2024) https://doi.org/10.1117/12.3018159

KEYWORDS: Black bodies, Design, Temperature metrology, Detector arrays, Optical testing

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Proceedings Article | 31 August 2022 Presentation + Paper

Conceptual design of the modular detector and readout system for the CMB-S4 survey experiment

D. Barron, Z. Ahmed, J. Aguilar, A. Anderson, C. Baker, P. Barry, J. Beall, A. Bender, B. Benson, R. Besuner, T. Cecil, C. Chang, S. Chapman, G. Chesmore, G. Derylo, W. Doriese, S. Duff, T. Elleflot, J. Filippini, B. Flaugher, J. Gomez, P. Grimes, R. Gualtieri, I. Gullett, G. Haller, S. Henderson, D. Henke, R. Herbst, A. Huber, J. Hubmayr, M. Jonas, J. Joseph, C. King, J. Kovac, D. Kubik, M. Lisovenko, J. McMahon, L. Moncelsi, J. Nagy, B. Osherson, B. Reese, J. Ruhl, L. Sapozhnikov, A. Schillaci, S. Simon, A. Suzuki, G. Wang, B. Westbrook, V. Yefremenko, J. Zhang

Proceedings Volume 12190, 121900B (2022) https://doi.org/10.1117/12.2630494

KEYWORDS: Sensors, Prototyping, Superconductors, Bolometers, Time division multiplexing, Electronics, Wafer-level optics, Multiplexing, Silicon

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Proceedings Article | 31 August 2022 Presentation + Paper

Optical design concept of the CMB-S4 large-aperture telescopes and cameras

Patricio Gallardo, Bradford Benson, John Carlstrom, Simon Dicker, Nick Emerson, Jon Gudmundsson, Richard Hills, Michele Limon, Jeff McMahon, Michael Niemack, Johanna Nagy, Stephen Padin, John Ruhl, Sara Simon

Proceedings Volume 12190, 121900C (2022) https://doi.org/10.1117/12.2626876

KEYWORDS: Cameras, Telescopes, Optical design, Optical instrument design, Sensors, Monochromatic aberrations, Physics, Imaging systems, Observatories, Mirrors

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Proceedings Article | 26 August 2022 Presentation

The TolTEC Camera: Calibration and On-site Performance at the Large Millimeter Telescope

Nat DeNigris, Peter Ade, Jason Austermann, Itziar Aretxaga, Sean Bryan, Reid Contente, Daniel Ferrusca, Laura Fissel, Jiansong Gao, Joseph Golec, Arturo Gómez, Sam Gordon, Robert Gutermuth, Gene Hilton, Mohsen Hosseini, Johannes Hubmayr, David Hughes, Stephen Kuczarski, Dennis Lee, Emily Lunde, Zhiyuan Ma, Emily Martsen, Philip Mauskopf, Michael McCrackan, Jeffrey McMahon, Giles Novak, Giampaolo Pisano, Alexandra Pope, Iván Rodríguez Montoya, Caleigh Ryan, David Sánchez-Argüelles, F. Peter Schloerb, Sara Simon, Adrian Sinclair, Jack Slater, Kamal Souccar, Ana Torres Campos, Carole Tucker, Eric Van Camp, Samantha Walker, Grant Wilson, Eric Weeks, Min Yun

Proceedings Volume PC12190, PC1219002 (2022) https://doi.org/10.1117/12.2630125

KEYWORDS: Cameras, Telescopes, Calibration, Sensors, Target detection, Polarization, Polarimetry, Inductance

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Proceedings Article | 7 March 2017 Paper

Highly uniform 150 mm diameter multichroic polarimeter array deployed for CMB detection

Shuay-Pwu Patty Ho, Jason Austermann, James Beall, Steve Choi, Nicholas Cothard, Kevin Crowley, Rahul Datta, Mark Devlin, Shannon Duff, Patricio Gallardo, Matthew Hasselfield, Shawn Henderson, Gene Hilton, Johannes Hubmayr, Brian Koopman, Yaqiong Li, Jeffrey McMahon, Michael Niemack, Maria Salatino, Sara Simon, Suzanne Staggs, Jonathan Ward, Joel Ullom, Eve Vavagiakis, Edward Wollack

Proceedings Volume 9914, 991418 (2017) https://doi.org/10.1117/12.2233113

KEYWORDS: Sensors, Telescopes, Receivers, Microwave radiation, Polarimetry, Bolometers, Polarization, Detector arrays, Anisotropy, Superconducting detectors

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Proceedings Article | 16 September 2016 Paper

Characterization of AlMn TES impedance, noise, and optical efficiency in the first 150 mm multichroic array for Advanced ACTPol

Kevin Crowley, Steve Choi, Jeffrey Kuan, Jason Austermann, James Beall, Rahul Datta, Shannon Duff, Patricio Gallardo, Matthew Hasselfield, Shawn Henderson, Shuay-Pwu Ho, Brian Koopman, Michael Niemack, Maria Salatino, Sara Simon, Suzanne Staggs, Edward Wollack

Proceedings Volume 9914, 991431 (2016) https://doi.org/10.1117/12.2231999

KEYWORDS: Sensors, Data modeling, Telescopes, Temperature metrology, Radon, Optical testing, Wafer-level optics, Resistance, Solids, Technetium

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Proceedings Article | 20 July 2016 Paper

Optical modeling and polarization calibration for CMB measurements with ACTPol and Advanced ACTPol

Brian Koopman, Jason Austermann, Hsiao-Mei Cho, Kevin Coughlin, Shannon Duff, Patricio Gallardo, Matthew Hasselfield, Shawn Henderson, Shuay-Pwu Patty Ho, Johannes Hubmayr, Kent Irwin, Dale Li, Jeff McMahon, Federico Nati, Michael Niemack, Laura Newburgh, Lyman Page, Maria Salatino, Alessandro Schillaci, Benjamin Schmitt, Sara Simon, Eve Vavagiakis, Jonathan Ward, Edward Wollack

Proceedings Volume 9914, 99142T (2016) https://doi.org/10.1117/12.2231912

KEYWORDS: Polarization, Calibration, Telescopes, Sensors, Signal detection, Sensors, Code v, Ray tracing, Receivers, Geometrical optics, Microwave radiation

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The Atacama Cosmology Telescope Polarimeter (ACTPol) is a polarization sensitive upgrade to the Atacama Cosmology Telescope, located at an elevation of 5190 m on Cerro Toco in Chile. ACTPol uses transition edge sensor bolometers coupled to orthomode transducers to measure both the temperature and polarization of the Cosmic Microwave Background (CMB). Calibration of the detector angles is a critical step in producing polarization maps of the CMB. Polarization angle offsets in the detector calibration can cause leakage in polarization from E to B modes and induce a spurious signal in the EB and TB cross correlations, which eliminates our ability to measure potential cosmological sources of EB and TB signals, such as cosmic birefringence. We calibrate the ACTPol detector angles by ray tracing the designed detector angle through the entire optical chain to determine the projection of each detector angle on the sky. The distribution of calibrated detector polarization angles are consistent with a global offset angle from zero when compared to the EB-nulling offset angle, the angle required to null the EB cross-correlation power spectrum. We present the optical modeling process. The detector angles can be cross checked through observations of known polarized sources, whether this be a galactic source or a laboratory reference standard. To cross check the ACTPol detector angles, we use a thin film polarization grid placed in front of the receiver of the telescope, between the receiver and the secondary reflector. Making use of a rapidly rotating half-wave plate (HWP) mount we spin the polarizing grid at a constant speed, polarizing and rotating the incoming atmospheric signal. The resulting sinusoidal signal is used to determine the detector angles. The optical modeling calibration was shown to be consistent with a global offset angle of zero when compared to EB nulling in the first ACTPol results and will continue to be a part of our calibration implementation. The first array of detectors for Advanced ACTPol, the next generation upgrade to ACTPol, will be deployed in 2016. We plan to continue using both techniques and compare them to astrophysical source measurements for the Advanced ACTPol polarization calibration.

Proceedings Article | 20 July 2016 Paper

Assembly and integration process of the first high density detector array for the Atacama Cosmology Telescope

Yaqiong Li, Steve Choi, Shuay-Pwu Ho, Kevin Crowley, Maria Salatino, Sara Simon, Suzanne Staggs, Federico Nati, Jonathan Ward, Benjamin Schmitt, Shawn Henderson, Brian Koopman, Patricio Gallardo, Eve Vavagiakis, Michael Niemack, Jeff McMahon, Shannon Duff, Alessandro Schillaci, Johannes Hubmayr, Gene Hilton, James Beall, Edward Wollack

Proceedings Volume 9914, 991435 (2016) https://doi.org/10.1117/12.2233470

KEYWORDS: Sensors, Semiconducting wafers, Multiplexers, Detector arrays, Wafer bonding, Optical alignment, Copper, Silicon, Aluminum, Cements

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