Dr. Neil Goeckner-Wald Profile

Dr. Neil Goeckner-Wald

at Stanford Univ

SPIE Involvement:

Author

Publications (23)

Proceedings Article | 24 September 2024 Poster + Paper

Poster + Paper

Calibration measurements of the BICEP3 and BICEP array CMB polarimeters from 2017 to 2024

C. Giannakopoulos, C. Vergès, P. A. Ade, Z. Ahmed, M. Amiri, D. Barkats, R. Basu Thakur, C. Bischoff, D. Beck, J. Bock, H. Boenish, V. Buza, J. Cheshire, J. Connors, J. Cornelison, M. Crumrine, A. Cukierman, E. Denison, M. Dierickx, L. Duband, M. Eiben, B. Elwood, S. Fatigoni, J. Filippini, A. Fortes, M. Gao, N. Goeckner-Wald, D. Goldfinger, J. Grayson, P. Grimes, G. Hall, G. Halal, M. Halpern, E. Hand, S. Harrison, S. Henderson, J. Hubmayr, H. Hui, K. Irwin, J. Kang, K. Karkare, S. Kefeli, J. Kovac, C. Kuo, K. Lau, M. Lautzenhiser, A. Lennox, T. Liu, K. Megerian, O. Miller, L. Minutolo, L. Moncelsi, Y. Nakato, H. Nguyen, R. O'Brient, A. Patel, M. Petroff, A. Polish, N. Precup, T. Prouvé, C. Pryke, C. Reintsema, T. Romand, M. Salatino, A. Schillaci, B. Schmitt, B. Singari, A. Soliman, T. St. Germaine, A. Steiger, B. Steinbach, R. Sudiwala, K. Thompson, C. Tsai, C. Tucker, A. Turner, A. Vieregg, A. Wandui, A. Weber, J. Willmert, W. L. Wu, H. Yang, C. Yu, L. Zeng, C. Zhang, S. Zhang

Proceedings Volume PC13102, PC1310219 (2024) https://doi.org/10.1117/12.3020443

KEYWORDS: Sensors, Polarization, Receivers, Calibration, Windows, Signal attenuation, Physics, Optical testing, Polarimetry, Equipment

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Proceedings Article | 11 September 2024 Presentation + Paper

Presentation + Paper

Development of the 220/270 GHz BICEP Array CMB receiver

Y. Nakato, P. A. Ade, Z. Ahmed, M. Amiri, D. Barkats, R. Basu Thakur, C. Bischoff, D. Beck, J. Bock, V. Buza, B. Cantrall, J. Cheshire, J. Cornelison, M. Crumrine, A. Cukierman, E. Denison, M. Dierickx, L. Duband, M. Eiben, B. Elwood, S. Fatigoni, J. Filippini, A. Fortes, M. Gao, C. Giannakopoulos, N. Goeckner-Wald, D. Goldfinger, J. Grayson, P. Grimes, G. Hall, G. Halal, M. Halpern, E. Hand, S. Henderson, J. Hubmayr, H. Hui, K. Irwin, J. Kang, K. Karkare, E. Karpel, S. Kefeli, J. Kovac, C. Kuo, K. Lau, M. Lautzenhiser, A. Lennox, T. Liu, K. Megerian, M. Miller, L. Minutolo, L. Moncelsi, H. Nguyen, R. O'Brient, A. Patel, M. Petroff, A. Polish, T. Prouvé, C. Pryke, C. Reintsema, T. Romand, M. Salatino, A. Schillaci, B. Schmitt, B. Singari, A. Soliman, T. St. Germaine, A. Steiger, B. Steinbach, R. Sudiwala, K. Thompson, C. Tucker, A. Turner, C. Vergès, A. Wandui, A. Weber, J. Willmert, W. L. Wu, H. Yang, E. Young, C. Yu, L. Zeng, C. Zhang, S. Zhang

Proceedings Volume PC13102, PC1310207 (2024) https://doi.org/10.1117/12.3018462

KEYWORDS: Receivers, Sensors, Near field optics, Polarization, Physics, Spectral response, Windows, Fourier transforms, Vacuum, Optical testing

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Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

2022 upgrade and improved low frequency camera sensitivity for CMB observation at the South Pole

A. Soliman, P. A. R. Ade, Z. Ahmed, M. Amiri, D. Barkats, R. Basu Thakur, C. A. Bischoff, D. Beck, J.J. Bock, V. Buza, J. Cheshire, J. Connors, J. Cornelison, M. Crumrine, A. J. Cukierman, E. V. Denison, M. I. Dierickx, L. Duband, M. Eiben, S. Fatigoni, J. P. Filippini, C. Giannakopoulos, N. Goeckner-Wald, D. C. Goldfinger, J. Grayson, P. K. Grimes, G. Hall, G. Halal, M. Halpern, E. Hand, S. A. Harrison, S. Henderson, S. R. Hildebrandt, G. C. Hilton, J. Hubmayr, H. Hui, K. Irwin, J. Kang, K. Karkare, S. Kefeli, J. M. Kovac, C. L. Kuo, K. Lau, E. M. Leitch, A. Lennox, T. Liu, K. G. Megerian, L. Minutolo, L. Moncelsi, Y. Nakato, T. Namikawa, H. Nguyen, R. O'Brient, S. Palladino, M. Petroff, N. Precup, T. Prouve, C. Pryke, B. Racine, C. Reintsema, M. Salatino, A. Schillaci, B. Schmitt, B. Singari, T. St. Germaine, B. Steinbach, R. Sudiwala, K. Thompson, C. Tsai, C. Tucker, A. Turner, C. Umiltà, C. Vergès, A. Vieregg, A. Wandui, A. Weber, D. Wiebe, J. Willmert, W. L. Wu, H. Yang, K. W. Yoon, E. Young, C. Yu, L. Zeng, C. Zhang, S. Zhang

Proceedings Volume 12190, 1219014 (2022) https://doi.org/10.1117/12.2628058

KEYWORDS: Cameras, Physics, Optical testing, Telescopes, Synchrotrons, Receivers, Photons, Optical simulations, Physical cosmology, Astronomical detectors

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Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

Improved polarization calibration of the BICEP3 CMB polarimeter at the South Pole

J. Cornelison, C. Vergès, P. A. Ade, Z. Ahmed, M. Amiri, D. Barkats, R. Basu Thakur, D. Beck, C. A. Bischoff, J. J. Bock, V. Buza, J. R. Cheshire, J. Connors, M. Crumrine, A. J. Cukierman, E. V. Denison, M. I. Dierickx, L. Duband, M. Eiben, S. Fatigoni, J. P. Filippini, C. Giannakopoulos, N. Goeckner-Wald, D. Goldfinger, J. Grayson, P. K. Grimes, G. Hall, G. Halal, M. Halpern, E. Hand, S. A. Harrison, S. Henderson, S. R. Hildebrandt, G. C. Hilton, J. Hubmayr, H. Hui, K. Irwin, J. Kang, K. S. Karkare, S. Kefeli, J. Kovac, C. L. Kuo, K. Lau, E. M. Leitch, A. Lennox, T. Liu, K. Look, K. Megerian, L. Minutolo, L. Moncelsi, Y. Nakato, T. Namikawa, H. T. Nguyen, R. O'brient, S. Palladino, M. A. Petroff, T. Prouve, C. Pryke, B. Racine, C. D. Reintsema, M. Salatino, A. Schillaci, B. L. Schmitt, B. Singari, A. Soliman, T. St. Germaine, B. Steinbach, R. V. Sudiwala, K. L. Thompson, C. Tsai, C. Tucker, A. D. Turner, C. Umiltà, A. G. Vieregg, A. Wandui, A. Weber, D. Wiebe, J. Willmert, W. L. Wu, H. Yang, K. W. Yoon, E. Young, C. Yu, L. Zeng, C. Zhang, S. Zhang

Proceedings Volume 12190, 121901X (2022) https://doi.org/10.1117/12.2620212

KEYWORDS: Polarization, Sensors, Mirrors, Calibration, Telescopes, Modulation, Birefringence, Physics, Polarimetry

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Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

Thermal testing for cryogenic CMB instrument optical design

D. Goldfinger, P.A.R. Ade, Z. Ahmed, M. Amiri, D. Barkats, R. Basu Thakur, D. Beck, C. Bischoff, J. Bock, V. Buza, J. Cheshire, J. Connors, J. Cornelison, M. Crumrine, A. Cukierman, E. Denison, M. Dierickx, L. Duband, M. Eiben, S. Fatigoni, J. Filippini, C. Giannakopoulos, N. Goeckner-Wald, J. Grayson, P. Grimes, G. Hall, G. Halal, M. Halpern, E. Hand, S. Harrison, S. Henderson, S. Hildebrandt, G. Hilton, J. Hubmayr, H. Hui, K. Irwin, J. Kang, K. Karkare, S. Kefeli, J. Kovac, C. L. Kuo, K. Lau, E. Leitch, A. Lennox, T. Liu, K. Megerian, L. Minutolo, L. Moncelsi, Y. Nakato, T. Namikawa, H. Nguyen, R. O'Brient, S. Palladino, M. Petroff, T. Prouvé, C. Pryke, B. Racine, C. Reintsema, M. Salatino, A. Schillaci, B. Schmitt, B. Singari, A. Soliman, A. Smith, T. St. Germaine, B. Steinbach, R. Sudiwala, K. Thompson, C. Tsai, C. Tucker, A. Turner, C. Umiltà, C. Verges, A. Vieregg, A. Wandui, A. Weber, D. Wiebe, J. Willmert, W. L. Wu, H. Yang, K. W. Yoon, E. Young, C. Yu, L. Zeng, C. Zhang, S. Zhang

Proceedings Volume 12190, 121901V (2022) https://doi.org/10.1117/12.2629490

KEYWORDS: Cryogenics, Optical filters, Thermal modeling, Foam, Receivers, Physics, Temperature metrology, Digital filtering, Sensors, Optical design

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Proceedings Article | 29 August 2022 Presentation

Presentation

BICEP ARRAY 150 GHz design development and progress

Silvia Zhang, P.A.R. Ade, Zeeshan Ahmed, Mandana Amiri, Denis Barkats, Ritoban Basu Thakur, Colin Bischoff, Dominic Beck, James Bock, Victor Buza, , Jake Connors, Michael Crumine, Ari Jozef Cukierman, Edward Denison, Marion Dierickx, Sofia Fatigoni, Jeff Filippini, Christos Giannakopoulos, Neil Goeckner-Wald, David Goldfinger, James Grayson, Paul Grimes, Grantland Hall, George Halal, Mark Halpern, Emma Hand, Sam Harrison, Shawn Henderson, Sergi Hildebrandt, Gene Hilton, Johannes Hubmayr, Howard Hui, Kent Irwin, Jae Hwan Kang, Kirit Karkare, Ethan Karpel, Sinan Kefeli, John Kovac, Chao-Lin Kuo, King Lau, Erik Leitch, Amber Lennox, K. Megerian, Lorenzo Minutolo, Lorenzo Moncelsi, Yuka Nakato, Toshiya Namikawa, H. Nguyen, Roger O'brient, Steven Palladino, Matthew Petroff, Nathan Precup, Thomas Prouvé, Clement Pryke, Benjamin Racine, Carl Reintsema, Alessandro Schillaci, Benjamin Schmitt, Baibhav Singari, Ahmed Soliman, Tyler St. Germaine, Bryan Steinbach, Rashmi Sudiwala, Keith Thompson, Carole Tucker, Anthony Turner, Caterina Ulmità, Clara Verges, A. Vieregg, Albert Wandui, Alexis Weber, Don Wiebe, Justin Willmert, Wai Ling Wu, Hung-I Yang, Ki Won Yoon, Edward Young, Cyndia Yu, Lingzhen Zeng, Cheng Zhang

Proceedings Volume PC12190, PC1219006 (2022) https://doi.org/10.1117/12.2629754

KEYWORDS: Sensors, Receivers, Telescopes, Superconductors, Refractor telescopes, Polarization, Niobium, Multiplexing, Magnetism, Detector arrays

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SPIE Journal Paper | 8 January 2022

Performance and characterization of the SPT-3G digital frequency-domain multiplexed readout system using an improved noise and crosstalk model

Joshua Montgomery, Peter A. Ade, Zeeshan Ahmed, Ethan Anderes, Adam Anderson, Melanie Archipley, Jessica Avva, Kevin Aylor, Lennart Balkenhol, Peter Barry, Ritoban Thakur, Karim Benabed, Amy Bender, Bradford Benson, Federico Bianchini, Lindsey Bleem, Francois Bouchet, Lincoln Bryant, Karen Byrum, John Carlstrom, Faustin Carter, Thomas Cecil, Clarence Chang, Prakrut Chaubal, Geoffrey Chen, Hsiao-Mei Cho, Ti-Lin Chou, Jean-Francois Cliche, Tom Crawford, Ari Cukierman, Cali Daley, Tijmen de Haan, Edward Denison, Karia Dibert, Junjia Ding, Matthew Adam Dobbs, Daniel Dutcher, Tucker Elleflot, Wendeline Everett, Cahng Feng, Kyle R. Ferguson, Allen Foster, Jianyang Fu, Silvia Galli, Anne Gambrel, Robert Gardner, Neil Goeckner-Wald, John Groh, Riccardo Gualtieri, Sam Guns, Nikhel Gupta, Robert Guyser, Nils Halverson, Angelina Harke-Hosemann, Nicholas Harrington, Jason Henning, Gene Hilton, Eric Hivon, William Holzapfel, John Hood, Doug Howe, Nicholas Huang, Kent Irwin, Oliver Jeong, Michelle Jonas, Adam Jones, Trupti Khaire, Lloyd Knox, Anna Kofman, Milo Korman, Donna Kubik, Stephen Kuhlmann, Chao-Lin Kuo, Adrian Lee, Erik Leitch, Amy Lowitz, Chunyu Lu, Stephan Meyer, Daniel Michalik, Marius Millea, Andrew Nadolski, Tyler Natoli, Hogan Nguyen, Gavin Noble, Valentine Novosad, Yuuki Omori, Steve Padin, Zhaodi Pan, Pascal Paschos, John Pearson, Chrystian Posada, Karthik Prabhu, Wei Quan, Alexandra Rahlin, Christian Reichardt, David Riebel, Benedikt Riedel, Maclean Rouble, John Ruhl, James Sayre, Eduardo Schiappucci, Erik Shirokoff, Graeme Smecher, Joshua Sobrin, Antony Stark, Judith Stephen, Kyle Story, Aritoki Suzuki, Keith Thompson, Ben Thorne, Carole Tucker, Caterina Umilta, Leila Vale, Keith Vanderlinde, Joaquin Vieira, Gensheng Wang, Nathan Whitehorn, Wai Ling Wu, Volodymyr Yefremenko, Ki Won Yoon, Matthew Young

JATIS, Vol. 8, Issue 01, 014001, (January 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.1.014001

KEYWORDS: Sensors, Multiplexing, Cryogenics, Interference (communication), Resistance, Physics, Systems modeling, Receivers, Performance modeling, Nulling interferometry

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Proceedings Article | 15 December 2020 Poster + Paper

Poster + Paper

Analysis of Temperature-to-Polarization Leakage in BICEP3 and Keck CMB Data from 2016 to 2018

T. St. Germaine, P. A. R. Ade, Z. Ahmed, M. Amiri, D. Barkats, R. Basu Thakur, C. Bischoff, J. Bock, H. Boenish, E. Bullock, V. Buza, J. Cheshire, J. Connors, J. Cornelison, M. Crumrine, A. Cukierman, E. Denison, M. Dierickx, L. Duband, M. Eiben, S. Fatigoni, J. Filippini, S. Fliescher, N. Goeckner-Wald, D. Goldfinger, J. Grayson, P. Grimes, G. Hall, M. Halpern, S. Harrison, S. Henderson, S. Hildebrandt, G. Hilton, J. Hubmayr, H. Hui, K. Irwin, J. Kang, K. Karkare, E. Karpel, S. Kefeli, S. Kernasovskiy, J. Kovac, C. L. Kuo, K. Lau, E. Leitch, K. Megerian, L. Minutolo, L. Moncelsi, Y. Nakato, T. Namikawa, H. Nguyen, R. O'brient, R. W. Ogburn, S. Palladino, N. Precup, T. Prouve, C. Pryke, B. Racine, C. Reintsema, S. Richter, A. Schillaci, B. Schmitt, R. Schwarz, C. Sheehy, A. Soliman, B. Steinbach, R. Sudiwala, G. Teply, K. Thompson, J. Tolan, C. Tucker, A. Turner, C. Umiltà, A. Vieregg, A. Wandui, A. Weber, D. Wiebe, J. Willmert, C. L. Wong, W. L. Wu, E. Yang, K. W. Yoon, E. Young, C. Yu, L. Zeng, Cheng Zhang, S. Zhang

Proceedings Volume 11453, 114532E (2020) https://doi.org/10.1117/12.2562729

KEYWORDS: Polarimetry, Sensors, Optical testing, Beam analyzers, Refractor telescopes, Telescopes, Microwave radiation, Polarization, Statistical analysis

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Receiver development for BICEP Array, a next-generation CMB polarimeter at the South Pole

L. Moncelsi, P. A. R. Ade, Z, Ahmed, M. Amiri, D. Barkats, R. Basu Thakur, C. Bischoff, J. J. Bock, V. Buza, J. Cheshire, J. Connors, J. Cornelison, M. Crumrine, A. J. Cukierman, E. V. Denison, M. Dierickx, L. Duband, M. Eiben, S. Fatigoni, J. P. Filippini, N. Goeckner-Wald, D. Goldfinger, J. Grayson, P. Grimes, G. Hall, M. Halpern, S. A. Harrison, S. Henderson, S. R. Hildebrandt, G. C. Hilton, J. Hubmayr, H. Hui, K. D. Irwin, J. H. Kang, K. S. Karkare, S. Kefeli, J. M. Kovac, C. L. Kuo, K. Lau, E. M. Leitch, K. G. Megerian, L. Minutolo, Y. Nakato, T. Namikawa, H. T. Nguyen, R. O'brient, S. Palladino, N. Precup, T. Prouve, C. Pryke, B. Racine, C. D. Reintsema, A. Schillaci, B. L. Schmitt, A. Soliman, T. St. Germaine, B. Steinbach, R. Sudiwala, K. L. Thompson, C. Tucker, A. D. Turner, C. Umiltà, A. G. Vieregg, A. Wandui, A. C. Weber, D. V. Wiebe, J. Willmert, W. L. Wu, E. Yang, K. W. Yoon, E. Young, C. Yu, L. Zeng, C. Zhang, S. Zhang

Proceedings Volume 11453, 1145314 (2020) https://doi.org/10.1117/12.2561995

KEYWORDS: Polarimetry, Receivers, Polarization, Microwave radiation, Synchrotrons, Sensors, Calibration

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Polarization calibration of the BICEP3 CMB polarimeter at the South Pole

J. Cornelison, P. A. Ade, Z. Ahmed, M. Amiri, D. Barkats, R. Basu Thakur, C. Bischoff, J. Bock, H. Boenish, E. Bullock, V. Buza, J. Cheshire, J. Connors, M. Crumrine, A. Cukierman, E. Denison, M. Dierickx, L. Duband, M. Eiben, S. Fatigoni, J. Filippini, S. Fliescher, N. Goeckner-Wald, D. Goldfinger, J. Grayson, P. Grimes, G. Hall, G. Halal, M. Halpern, S. Harrison, S. Henderson, S. Hildebrandt, G. Hilton, J. Hubmayr, H. Hui, K. Irwin, J. Kang, K. Karkare, E. Karpel, S. Kefeli, S. Kernasovkiy, J. Kovac, C. L. Kuo, K. Lau, E. Leitch, K. Megerian, L. Minutolo, L. Moncelsi, Y. Nakato, T. Namikawa, H. Nguyen, R. O'Brient, R. Ogburn, S. Palladino, N. Precup, T. Prouve, C. Pryke, B. Racine, C. Reintsema, S. Richter, A. Schillaci, B. Schmitt, R. Schwarz, C. Sheehy, A. Soliman, T. St. Germaine, B. Steinbach, R. Sudiwala, G. Teply, K. Thompson, J. Tolan, C. Tucker, A. Turner, C. Umilta, A. Vieregg, A. Wandui, A. Weber, D. Wiebe, J. Willmert, C. L. Wong, W. L. K. Wu, E. Yang, K. W. Yoon, E. Young, C. Yu, L. Zeng, C. Zhang, S. Zhang

Proceedings Volume 11453, 1145327 (2020) https://doi.org/10.1117/12.2562905

KEYWORDS: Polarization, Polarimetry, Sensors, Telescopes, Refractor telescopes, Optical instrument design, Microwave radiation, Signal detection, Antennas, Physical phenomena

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Observing low elevation sky and the CMB Cold Spot with BICEP3 at the South Pole

Jae Hwan Kang, P. A. R. Ade, Z. Ahmed, M. Amiri, D. Barkats, R. Basu Thakur, C. Bischoff, J. Bock, H. Boenish, E. Bullock, Victor Buza, J. Cheshire, J. Connors, J. Cornelison, M. Crumrine, A. Cukierman, E. Denison, M. Dierickx, L. Duband, M. Eiben, S. Fatigoni, J. Filippini, S. Fliescher, N. Goeckner-Wald, D. Goldfinger, J. Grayson, P. Grimes, G. Hall, M. Halpern, S. Harrison, S. Henderson, S. Hildebrandt, G. Hilton, J. Hubmayr, H. Hui, K. Irwin, K. Karkare, E. Karpel, S. Kefeli, S. Kernasovskiy, J. Kovac, C.-L. Kuo, K. Lau, E. Leitch, K. Megerian, L. Minutolo, L. Moncelsi, Y. Nakato, T. Namikawa, H. Nguyen, R. O'brient, R. W. Ogburn, S. Palladino, N. Precup, T. Prouve, C. Pryke, B. Racine, C. Reintsema, S. Richter, A. Schillaci, B. Schmitt, R. Schwarz, C. Sheehy, A. Soliman, T. St. Germaine, B. Steinbach, R. Sudiwala, G. Teply, K. Thompson, J. Tolan, C. Tucker, A. Turner, C. Umiltà, A. Vieregg, A. Wandui, A. Weber, D. Wiebe, J. Willmert, C. L. Wong, W. L. Wu, E. Yang, K. W. Yoon, E. Young, C. Yu, L. Zeng, C. Zhang, S. Zhang

Proceedings Volume 11453, 114532D (2020) https://doi.org/10.1117/12.2562066

KEYWORDS: Polarization, Mirrors, Refractor telescopes, Telescopes, Microwave radiation, Cryocoolers, Receivers, Beam shaping, Raster graphics, Mirror pointing

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Proceedings Article | 31 July 2018 Presentation + Paper

Presentation + Paper

The Simons Observatory: instrument overview

Nicholas Galitzki, Aamir Ali, Kam Arnold, Peter Ashton, Jason Austermann, Carlo Baccigalupi, Taylor Baildon, Darcy Barron, James Beall, Shawn Beckman, Sarah Marie Bruno, Sean Bryan, Paolo Calisse, Grace Chesmore, Yuji Chinone, Steve Choi, Gabriele Coppi, Kevin Crowley, Ari Cukierman, Mark Devlin, Simon Dicker, Bradley Dober, Shannon Duff, Jo Dunkley, Giulio Fabbian, Patricio Gallardo, Martina Gerbino, Neil Goeckner-Wald, Joseph Golec, Jon Gudmundsson, Erin Healy, Shawn Henderson, Charles Hill, Gene Hilton, Shuay-Pwu Patty Ho, Logan Howe, Johannes Hubmayr, Oliver Jeong, Brian Keating, Brian Koopman, Kenji Kiuchi, Akito Kusaka, Jacob Lashner, Adrian Lee, Yaqiong Li, Michele Limon, Marius Lungu, Frederick Matsuda, Philip Mauskopf, Andrew May, Nialh McCallum, Jeff McMahon, Federico Nati, Michael Niemack, John Orlowski-Scherer, Stephen Parshley, Lucio Piccirillo, Mayuri Sathyanarayana Rao, Christopher Raum, Maria Salatino, Joseph Seibert, Carlos Sierra, Max Silva-Feaver, Sara Simon, Suzanne Staggs, Jason Stevens, Aritoki Suzuki, Grant Teply, Robert Thornton, Calvin Tsai, Joel Ullom, Eve Vavagiakis, Michael Vissers, Benjamin Westbrook, Edward Wollack, Zhilei Xu, Ningfeng Zhu

Proceedings Volume 10708, 1070804 (2018) https://doi.org/10.1117/12.2312985

KEYWORDS: Sensors, Receivers, Telescopes, Cryogenics, Physics, Wafer-level optics, Semiconducting wafers, Lenses, Staring arrays, Observatories

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Proceedings Article | 23 July 2018 Paper

Paper

Studies of systematic uncertainties for Simons Observatory: polarization modulator related effects

Maria Salatino, Jacob Lashner, Martina Gerbino, Sara Simon, Joy Didier, Aamir Ali, Peter Ashton , Sean Bryan, Yuji Chinone, Kevin Coughlin, Kevin Crowley, Giulio Fabbian, Nicholas Galitzki, Neil Goeckner-Wald , Jon Gudmundsson , Charles Hill, Brian Keating, Akito Kusaka, Adrian Lee, Jeffrey McMahon, Amber Miller, Giuseppe Puglisi, Christian Reichardt, Grant Teply, Zhilei Xu, Ningfeng Zhu

Proceedings Volume 10708, 1070848 (2018) https://doi.org/10.1117/12.2312993

KEYWORDS: Sensors, Polarization, Sapphire, Metamaterials, Reflection, Optical components, Modulation, Refraction, Antireflective coatings, Physics

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Proceedings Article | 17 July 2018 Paper

Paper

Designs for next generation CMB survey strategies from Chile

Jason Stevens, Neil Goeckner-Wald, Reijo Keskitalo, Nialh McCallum, Aamir Ali, Julian Borrill, Michael Brown, Yuji Chinone, Patricio Gallardo, Akito Kusaka, Adrian Lee, Jeff McMahon, Michael Niemack, Lyman Page, Giuseppe Puglisi, Maria Salatino, Suet Ying Mak, Grant Teply, Daniel Thomas, Eve Vavagiakis, Edward Wollack, Zhilei Xu, Ningfeng Zhu

Proceedings Volume 10708, 1070841 (2018) https://doi.org/10.1117/12.2313898

KEYWORDS: Telescopes, Sun, Sensors, Polarization, Physics, Device simulation, Optical instrument design, Anisotropy, Signal detection

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New telescopes are being built to measure the Cosmic Microwave Background (CMB) with unprecedented sensitivity, including Simons Observatory (SO), CCAT-prime, the BICEP Array, SPT-3G, and CMB Stage-4. We present observing strategies for telescopes located in Chile that are informed by the tools used to develop recent Atacama Cosmology Telescope (ACT) and Polarbear surveys. As with ACT and Polarbear, these strategies are composed of scans that sweep in azimuth at constant elevation.

We explore observing strategies for both small (0.42 m) aperture telescopes (SAT) and a large (6 m) aperture telescope (LAT). We study strategies focused on small sky areas to search for inflationary gravitational waves as well as strategies spanning roughly half the low-foreground sky to constrain the effective number of relativistic species and measure the sum of neutrino masses via the gravitational lensing signal due to large scale structure. We present these strategies specifically considering the telescope hardware and science goals of the SO, located at 23° South latitude, 67.8° West longitude.

Observations close to the Sun and the Moon can introduce additional systematics by applying additional power to the instrument through telescope sidelobes. Significant side lobe contamination in the data can occur even at tens of degrees or more from bright sources. Therefore, we present several strategies that implement Sun and Moon avoidance constraints into the telescope scheduling.

Scan strategies can also be a powerful tool to diagnose and mitigate instrumental systematics either by using multiple scans to average down systematics or by providing null tests to diagnose problems. We discuss methods for quantifying the ability of an observation strategy to achieve this.

Strategies for resolving conflicts between simultaneously visible fields are discussed. We focus on maximizing telescope time spent on science observations. It will also be necessary to schedule calibration measurements, however that is beyond the scope of this work. The outputs of this study are algorithms that can generate specific schedule commands for the Simons Observatory instruments.

Proceedings Article | 10 July 2018 Presentation

Presentation

POLARBEAR-2: a new CMB polarization receiver system for the Simons array (Conference Presentation)

Masaya Hasegawa, The POLARBEAR COLLABORATION, Peter Ade, Mario Aguilar, Yoshiki Akiba, Aamir Ali, Kam Arnold, Peter Ashton, Carlo Baccigalupi, Darcy Barron, Dominic Beck, Shawn Beckman, Amy Bender, Federico Bianchini, David Boettger, Julian Borrill, Julien Carron, Scott Chapman, Yuji Chinone, Gabriele Coppi, Kevin Crowley, Ari Cukierman, Matt Dobbs, Rolando Dunner, Tucker Elleflot, Josquin Errard, Giulio Fabbian, Stephen Feeney, Chang Feng, George Fuller, Nicholas Galitzki, Andrew Gilbert, Neil Goeckner-Wald, John Groh, Tijmen Haan, Nils Halverson, Takaho Hamada, Masashi Hazumi, Charles Hill, William Holzapfel, Logan Howe, Yuki Inoue, Jennifer Ito, Greg Jaehnig, Andrew Jaffe, Oliver Jeong, Maude Jeune, Daisuke Kaneko, Nobuhiko Katayama, Brian Keating, Reijo Keskitalo, Theodore Kisner, Nicoletta Krachmalnicoff, Akito Kusaka, Adrian Lee, David Leon, Eric Linder, Lindsay Lowry, Alex Madurowicz, Suet Mak, Frederick Matsuda, Tomotake Matsumura, Andrew May, Nathan Miller, Yuto Minami, Joshua Montgomery, Martin Navaroli, Haruki Nishino, Julien Peloton, Anh Pham, Lucio Piccirillo, Richard Plambeck, Davide Poletti, Giuseppe Puglisi, Christopher Raum, Gabriel Rebeiz, Christian Reichardt, Paul Richards, Hayley Roberts, Colin Ross, Kaja Rotermund Rotermund, Yuuko Segawa, Blake Sherwin, Maximiliano Silva-Feaver, Praween Siritanasak, Leo Steinmetz, Radek Stompor, Aritoki Suzuki, Osamu Tajima, Satoru Takakura, Sayuri Takatori, Daiki Tanabe, Raymond Tat, Grant Teply, Takayuki Tomaru, Calvin Tsai Tsai, Clara Verges, Ben Westbrook, Nathan Whitehorn, Alex Zahn, Junichi Suzuki, Takahiro Okamura

Proceedings Volume 10708, 1070802 (2018) https://doi.org/10.1117/12.2311576

KEYWORDS: Receivers, Polarization, Bolometers, Sensors, Multiplexing, Telescopes, Microwave radiation, Helium, Staring arrays, Superconductors

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POLARBEAR-2 is a new receiver system, which will be deployed on the Simons Array telescope platform, for the measurement of Cosmic Microwave Background (CMB) polarization. The science goals with POLARBEAR-2 are to characterize the B-mode signal both at degree and sub-degree angular-scales. The degree-scale polarization data can be used for quantitative studies on inflation, such as the reconstruction of the energy scale of inflation. The sub-degree polarization data is an excellent tracer of large-scale structure in the universe, and will lead to precise constraints on the sum of the neutrino masses. In order to achieve these goals, POLARBEAR-2 employs 7588 polarization-sensitive antenna-coupled transition-edge sensor (TES) bolometers on the focal plane cooled to 0.27K with a three-stage Helium sorption refrigerator, which is ~6 times larger array over the current receiver system. The large TES bolometer array is read-out by an upgraded digital frequency-domain multiplexing system capable of multiplexing 40 bolometers through a single superconducting quantum interference device (SQUID). The first POLARBEAR-2 receiver, POLARBEAR-2A is constructed and the end-to-end testing to evaluate the integrated performance of detector, readout, and optics system is being conducted in the laboratory with various types of test equipments. The POLARBEAR-2A is scheduled to be deployed in 2018 at the Atacama desert in Chile. To further increase measurement sensitivity, two more POLARBEAR-2 type receivers will be deployed soon after the deployment (Simons Array project). The Simons Array will cover four frequency bands at 95GHz, 150GHz, 220GH and 270GHz for better control of the foreground signal. The projected constraints on a tensor-to-scalar ratio (amplitude of inflationary B-mode signal) is σ(r=0.1) = $6.0 \times 10^{-3}$ after foreground removal ($4.0 \times 10^{-3}$ (stat.)), and the sensitivity to the sum of the neutrino masses when combined with DESI spectroscopic galaxy survey data is 40 meV at 1-sigma after foreground removal (19 meV(stat.)). We will present an overview of the design, assembly and status of the laboratory testing of the POLARBEAR-2A receiver system as well as the Simons Array project overview.

Proceedings Article | 10 July 2018 Presentation

Presentation

Electrical characterization and tuning of the integrated POLARBEAR-2a focal plane and readout (Conference Presentation)

Darcy Barron, Kam Arnold, Tucker Elleflot, John Groh, Daisuke Kaneko, Nobuhiko Katayama, Adrian Lee, Lindsay Lowry, Haruki Nishino, Aritoki Suzuki, Sayuri Takatori, P. Ade, Y. Akiba, A. Ali, M. Aguilar, A. Anderson, P. Ashton, J. Avva, D. Beck, C. Baccigalupi, S. Beckman, A. Bender, F. Bianchini, D. Boettger, J. Borrill, J. Carron, S. Chapman, Y. Chinone, G. Coppi, K. Crowley, A. Cukierman, T. de Haan, M. Dobbs, R. Dunner, J. Errard, G. Fabbian, S. Feeney, C. Feng, G. Fuller, N. Galitzki, A. Gilbert, N. Goeckner-Wald, T. Hamada, N. Halverson, M. Hasegawa, M. Hazumi, C. Hill, W. Holzapfel, L. Howe, Y. Inoue, J. Ito, G. Jaehnig, O. Jeong, B. Keating, R. Keskitalo, T. Kisner, N. Krachmalnicoff, A. Kusaka, M. Le Jeune, D. Leon, E. Linder, A. Lowitz, A. Madurowicz, D. Mak, F. Matsuda, T. Matsumura, A. May, N. Miller, Y. Minami, J. Montgomery, T. Natoli, M. Navroli, J. Peloton, A. Pham, L. Piccirillo, D. Plambeck, D. Poletti, G. Puglisi, C. Raum, G. Rebeiz, C. Reichardt, P. Richards, H. Roberts, C. Ross, K. Rotermund, Max Silva Feaver, Y. Segawa, B. Sherwin, P. Siritanasak, L. Steinmetz, R. Stompor, O. Tajima, S. Takakura, D. Tanabe, R. Tat, G. Teply, A. Tikhomirov, T. Tomaru, C. Tsai, C. Verges, B. Westbrook, N. Whitehorn, A. Zahn

Proceedings Volume 10708, 1070808 (2018) https://doi.org/10.1117/12.2311502

KEYWORDS: Bolometers, Polarization, Sensors, Receivers, Microwave radiation, Telescopes, Frequency division multiplexing, Aluminum, Capacitors, Circuit switching

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POLARBEAR is a cosmic microwave background (CMB) polarization experiment located in the Atacama desert in Chile. The science goals of the POLARBEAR project are to do a deep search for CMB B-mode polarization created by inflationary gravitational waves, as well as characterize the CMB B-mode signal from gravitational lensing. POLARBEAR-1 started observations in 2012, and the POLARBEAR team has published a series of results from its first two seasons of observations, including the first measurement of a non-zero B-mode polarization angular power spectrum, measured at sub-degree scales where the dominant signal is gravitational lensing of the CMB. The Simons Array expands POLARBEAR to include an additional two telescopes with next-generation POLARBEAR-2 multi-chroic receivers, observing at 95, 150, 220, and 270 GHz. The POLARBEAR-2A focal plane has 7,588 transition-edge sensor bolometers, read out with frequency-division multiplexing, with 40 frequency channels within the readout bandwidth of 1.5 to 4.5 MHz. The frequency channels are defined by a low-loss lithographed aluminum spiral inductor and interdigitated capacitor in series with each bolometer, creating a resonant frequency for each channel's unique voltage bias and current readout. Characterization of the readout includes measuring resonant peak locations and heights and fitting to a circuit model both above and below the bolometer superconducting transition temperature. This information is used determine the optimal detector bias frequencies and characterize stray impedances which may affect bolometer operation and stability. The detector electrical characterization includes measurements of the transition properties by sweeping in temperature and in voltage bias, measurements of the bolometer saturation power, as well as measuring and removing any biases introduced by the readout circuit. We present results from the characterization, tuning, and operation of the fully integrated focal plane and readout for the first POLARBEAR-2 receiver, POLARBEAR-2A, during its pre-deployment integration run.

Proceedings Article | 9 July 2018 Paper

Paper

Development of calibration strategies for the Simons Observatory

Sean Bryan, Sara Simon, Martina Gerbino, Grant Teply, Amir Ali, Yuji Chinone, Kevin Crowley, Giulio Fabbian, Patricio Gallardo, Neil Goeckner-Wald, Brian Keating, Brian Koopman, Akito Kusaka, Frederick Matsuda, Philip Mauskopf, Jeff McMahon, Federico Nati, Giuseppe Puglisi, Christian Reichardt, Maria Salatino, Zhilei Xu, Ningfeng Zhu

Proceedings Volume 10708, 1070840 (2018) https://doi.org/10.1117/12.2313832

KEYWORDS: Calibration, Atmospheric modeling, Polarization, Atmospheric sensing

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Proceedings Article | 9 July 2018 Paper

Paper

Studies of systematic uncertainties for Simons Observatory: detector array effects

Kevin Crowley, Sara Simon, Max Silva-Feaver, Neil Goeckner-Wald, Aamir Ali, Jason Austermann, Michael Brown, Yuji Chinone, Ari Cukierman, Bradley Dober, Shannon Duff, Jo Dunkley, Josquin Errard, Giulio Fabbian, Patricio Gallardo, Shuay-Pwu Patty Ho, Johannes Hubmayr, Brian Keating, Akito Kusaka, Nialh McCallum, Jeff McMahon, Federico Nati, Michael Niemack, Giuseppe Puglisi, Mayuri Sathyanarayana Rao, Christian Reichardt, Maria Salatino, Praween Siritanasak, Suzanne Staggs, Aritoki Suzuki, Grant Teply, Daniel Thomas, Joel Ullom, Clara Vergès, Michael Vissers, Benjamin Westbrook, Edward Wollack, Zhilei Xu, Ningfeng Zhu

Proceedings Volume 10708, 107083Z (2018) https://doi.org/10.1117/12.2313414

KEYWORDS: Sensors, Polarization, Bolometers, Signal detection, Detector arrays, Calibration, Contamination, Antennas, Device simulation, Optical simulations

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Proceedings Article | 8 August 2016 Paper

Paper

POLARBEAR-2: an instrument for CMB polarization measurements

Y. Inoue, P. Ade, Y. Akiba, C. Aleman, K. Arnold, C. Baccigalupi, B. Barch, D. Barron, A. Bender, D. Boettger, J. Borrill, S. Chapman, Y. Chinone, A. Cukierman, T. de Haan, M. Dobbs, A. Ducout, R. Dünner, T. Elleflot, J. Errard, G. Fabbian, S. Feeney, C. Feng, G. Fuller, A. Gilbert, N. Goeckner-Wald, J. Groh, G. Hall, N. Halverson, T. Hamada, M. Hasegawa, K. Hattori, M. Hazumi, C. Hill, W. Holzapfel, Y. Hori, L. Howe, F. Irie, G. Jaehnig, A. Jaffe, O. Jeong, N. Katayama, J. Kaufman, K. Kazemzadeh, B. Keating, Z. Kermish, R. Keskitalo, T. Kisner, A. Kusaka, M. Le Jeune, A. Lee, D. Leon, E. Linder, L. Lowry, F. Matsuda, T. Matsumura, N. Miller, K. Mizukami, J. Montgomery, M. Navaroli, H. Nishino, H. Paar, J. Peloton, D. Poletti, G. Puglisi, C. Raum, G. Rebeiz, C. Reichardt, P. Richards, C. Ross, K. Rotermund, Y. Segawa, B. Sherwin, I. Shirley, P. Siritanasak, N. Stebor, R. Stompor, J. Suzuki, A. Suzuki, O. Tajima, S. Takada, S. Takatori, G. Teply, A. Tikhomirov, T. Tomaru, N. Whitehorn, A. Zahn, O. Zahn

Proceedings Volume 9914, 99141I (2016) https://doi.org/10.1117/12.2231961

KEYWORDS: Signal detection, Sensors, Polarization, Bolometers, Receivers, Lenses, Optical filters, Physics, Optical filtering, Mirrors

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Proceedings Article | 29 July 2016 Paper

Paper

LiteBIRD: lite satellite for the study of B-mode polarization and inflation from cosmic microwave background radiation detection

H. Ishino, Y. Akiba, K. Arnold, D. Barron, J. Borrill, R. Chendra, Y. Chinone, S. Cho, A. Cukierman, T. de Haan, M. Dobbs, A. Dominjon, T. Dotani, T. Elleflot, J. Errard, T. Fujino, H. Fuke, T. Funaki, N. Goeckner-Wald, N. Halverson, P. Harvey, T. Hasebe, M. Hasegawa, K. Hattori, M. Hattori, M. Hazumi, N. Hidehira, C. Hill, G. Hilton, W. Holzapfel, Y. Hori, J. Hubmayr, K. Ichiki, H. Imada, J. Inatani, M. Inoue, Y. Inoue, F. Irie, K. Irwin, H. Ishitsuka, O. Jeong, H. Kanai, K. Karatsu, S. Kashima, N. Katayama, I. Kawano, T. Kawasaki, B. Keating, S. Kernasovskiy, R. Keskitalo, A. Kibayashi, Y. Kida, N. Kimura, K. Kimura, T. Kisner, K. Kohri, E. Komatsu, K. Komatsu, C.-L. Kuo, S. Kuromiya, A. Kusaka, A. Lee, D. Li, E. Linder, M. Maki, H. Matsuhara, T. Matsumura, S. Matsuoka, S. Matsuura, S. Mima, Y. Minami, K. Mitsuda, M. Nagai, T. Nagasaki, R. Nagata, M. Nakajima, S. Nakamura, T. Namikawa, M. Naruse, T. Nishibori, K. Nishijo, H. Nishino, A. Noda, T. Noguchi, H. Ogawa, W. Ogburn, S. Oguri, I. Ohta, N. Okada, A. Okamoto, T. Okamura, C. Otani, G. Pisano, G. Rebeiz, P. Richards, S. Sakai, Y. Sakurai, Y. Sato, N. Sato, Y. Segawa, S. Sekiguchi, Y. Sekimoto, M. Sekine, U. Seljak, B. Sherwin, T. Shimizu, K. Shinozaki, S. Shu, R. Stompor, H. Sugai, H. Sugita, J. Suzuki, T. Suzuki, A. Suzuki, O. Tajima, S. Takada, S. Takakura, K. Takano, S. Takatori, Y. Takei, D. Tanabe, T. Tomaru, N. Tomita, P. Turin, S. Uozumi, S. Utsunomiya, Y. Uzawa, T. Wada, H. Watanabe, B. Westbrook, N. Whitehorn, Y. Yamada, R. Yamamoto, N. Yamasaki, T. Yamashita, T. Yoshida, M. Yoshida, K. Yotsumoto

Proceedings Volume 9904, 99040X (2016) https://doi.org/10.1117/12.2231995

KEYWORDS: Telescopes, Satellites, Microwave radiation, Polarization, Sensors, Space telescopes, Space operations, Detector arrays, Mirrors, Bolometers

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Proceedings Article | 20 July 2016 Paper

Paper

The Simons Array CMB polarization experiment

N. Stebor, P. Ade, Y. Akiba, C. Aleman, K. Arnold, C. Baccigalupi, B. Barch, D. Barron, S. Beckman, A. Bender, D. Boettger, J. Borrill, S. Chapman, Y. Chinone, A. Cukierman, T. de Haan, M. Dobbs, A. Ducout, R. Dunner, T. Elleflot, J. Errard, G. Fabbian, S. Feeney, C. Feng, T. Fujino, G. Fuller, A. Gilbert, N. Goeckner-Wald, J. Groh, G. Hall, N. Halverson, T. Hamada, M. Hasegawa, K. Hattori, M. Hazumi, C. Hill, W. Holzapfel, Y. Hori, L. Howe, Y. Inoue, F. Irie, G. Jaehnig, A. Jaffe, O. Jeong, N. Katayama, J. Kaufman, K. Kazemzadeh, B. Keating, Z. Kermish, R. Keskitalo, T. Kisner, A. Kusaka, M. Le Jeune, A. Lee, D. Leon, E. Linder, L. Lowry, F. Matsuda, T. Matsumura, N. Miller, J. Montgomery, M. Navaroli, H. Nishino, H. Paar, J. Peloton, D. Poletti, G. Puglisi, C. Raum, G. Rebeiz, C. Reichardt, P. Richards, C. Ross, K. Rotermund, Y. Segawa, B. Sherwin, I. Shirley, P. Siritanasak, L. Steinmetz, R. Stompor, A. Suzuki, O. Tajima, S. Takada, S. Takatori, G. Teply, A. Tikhomirov, T. Tomaru, B. Westbrook, N. Whitehorn, A. Zahn, O. Zahn

Proceedings Volume 9914, 99141H (2016) https://doi.org/10.1117/12.2233103

KEYWORDS: Polarization, Polarization, Receivers, Bolometers, Cryogenics, Telescopes, Sensors, Physics, Detector arrays, Staring arrays, Astronomy

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Proceedings Article | 19 July 2016 Paper

Paper

Design and development of an ambient-temperature continuously-rotating achromatic half-wave plate for CMB polarization modulation on the POLARBEAR-2 experiment

Charles Hill, Shawn Beckman, Yuji Chinone, Neil Goeckner-Wald, Masashi Hazumi, Brian Keating, Akito Kusaka, Adrian Lee, Frederick Matsuda, Richard Plambeck, Aritoki Suzuki, Satoru Takakura

Proceedings Volume 9914, 99142U (2016) https://doi.org/10.1117/12.2232280

KEYWORDS: Polarization, Modulation, Sapphire, Sensors, Modulation, Receivers, Dielectric polarization, Phase shift keying, Mirrors, Autoregressive models, Signal detection

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Proceedings Article | 19 August 2014 Paper

Paper

The Simons Array: expanding POLARBEAR to three multi-chroic telescopes

K. Arnold, N. Stebor, P. A. Ade, Y. Akiba, A. Anthony, M. Atlas, D. Barron, A. Bender, D. Boettger, J. Borrill, S. Chapman, Y. Chinone, A. Cukierman, M. Dobbs, T. Elleflot, J. Errard, G. Fabbian, C. Feng, A. Gilbert, N. Goeckner-Wald, N. Halverson, M. Hasegawa, K. Hattori, M. Hazumi, W. Holzapfel, Y. Hori, Y. Inoue, G. Jaehnig, A. Jaffe, N. Katayama, B. Keating, Z. Kermish, R. Keskitalo, T. Kisner, M. Le Jeune, A. Lee, E. Leitch, E. Linder, F. Matsuda, T. Matsumura, X. Meng, N. Miller, H. Morii, M. Myers, M. Navaroli, H. Nishino, T. Okamura, H. Paar, J. Peloton, D. Poletti, C. Raum, G. Rebeiz, C. Reichardt, P. Richards, C. Ross, K. Rotermund, D. Schenck, B. Sherwin, I. Shirley, M. Sholl, P. Siritanasak, G. Smecher, B. Steinbach, R. Stompor, A. Suzuki, J. Suzuki, S. Takada, S. Takakura, T. Tomaru, B. Wilson, A. Yadav, O. Zahn

Proceedings Volume 9153, 91531F (2014) https://doi.org/10.1117/12.2057332

KEYWORDS: Telescopes, Physics, Polarization, Space telescopes, Receivers, Sensors, Baryon acoustic oscillations, Aerospace engineering, Astronomy, Spatial resolution

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