Dr. Lingzhen Zeng Profile

Dr. Lingzhen Zeng

Physicist at Harvard-Smithsonian Ctr for Astrophysics

SPIE Involvement:

Author

Publications (27)

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 | 16 August 2024 Poster + Paper

Poster + Paper

A low-loss silicon optical diplexer for millimeter and submillimeter radio astronomy

Keara Carter, C. Edward Tong, Lingzhen Zeng, Paul Grimes, Robert Kimberk

Proceedings Volume 13102, 131021V (2024) https://doi.org/10.1117/12.3025396

KEYWORDS: Optical transmission, Dielectrics, Reflection, Dielectric polarization, Radio optics, Silicon, Radio astronomy, Astronomical imaging, Design, Telescopes

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Proceedings Article | 18 July 2024 Poster + Paper

Poster + Paper

Upgrading the submillimeter array: wSMA and beyond

Paul Grimes, Garrett Keating, Raymond Blundell, Robert Christensen, Mark Gurwell, Attila Kovacs, Timothy Norton, Scott Paine, Ramprasad Rao, Edward C.-Y. Tong, Jonathan Weintroub, David Wilner, Robert Wilson, Lingzhen Zeng, Qizhou Zhang

Proceedings Volume 13096, 1309639 (2024) https://doi.org/10.1117/12.3020046

KEYWORDS: Receivers, Shape memory alloys, Cryostats, Antennas, Calibration, Prototyping, Polarization, Cryogenics, Beam splitters, Astrophysics

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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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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 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 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

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 | 10 July 2018 Paper

Paper

The Cosmology Large Angular Scale Surveyor receiver design

Jeffrey Iuliano, Joseph Eimer , Lucas Parker, Gary Rhoades, Aamir Ali, John Appel, Charles Bennett , Michael Brewer , Ricardo Bustos , David Chuss , Joseph Cleary , Jullianna Couto, Sumit Dahal, Kevin Denis, Rolando Dünner , Thomas Essinger-Hileman, Pedro Fluxa , Mark Halpern , Kathleen Harrington , Kyle Helson, Gene Hilton , Gary Hinshaw , Johannes Hubmayr , John Karakla , Tobias Marriage , Nathan Miller , Jeffrey John McMahon, Carolina Nuñez, Ivan Padilla , Gonzalo Palma , Matthew Petroff , Bastian Pradenas Márquez, Rodrigo Reeves , Carl Reintsema , Karwan Rostem , Deniz Augusto Nunes Valle, Trevor Van Engelhoven, Bingjie Wang , Qinan Wang , Duncan Watts , Janet Weiland , Edward Wollack , Zhilei Xu, Ziang Yan , Lingzhen Zeng

Proceedings Volume 10708, 1070828 (2018) https://doi.org/10.1117/12.2312954

KEYWORDS: Receivers, Sensors, Tolerancing, Lenses, Magnetism, Optical alignment, Polarization, Absorption filters

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Proceedings Article | 9 July 2018 Paper

Paper

Design and characterization of the Cosmology Large Angular Scale Surveyor (CLASS) 93 GHz focal plane

Sumit Dahal, Aamir Ali, John Appel, Thomas Essinger-Hileman, Charles Bennett, Michael Brewer, Ricardo Bustos, Manwei Chan, David Chuss, Joseph Cleary, Felipe Colazo, Jullianna Couto, Kevin Denis, Rolando Dünner, Joseph Eimer, Trevor Engelhoven, Pedro Fluxa, Mark Halpern, Kathleen Harrington, Kyle Helson, Gene Hilton, Gary Hinshaw, Johannes Hubmayr, Jeffery Iuliano, John Karakla, Tobias Marriage, Jeffrey McMahon, Nathan Miller, Carolina Nuñez, Ivan Padilla, Gonzalo Palma, Lucas Parker, Matthew Petroff, Bastian Pradenas, Rodrigo Reeves, Carl Reintsema, Karwan Rostem, Marco Sagliocca, Kongpop U-Yen, Deniz Valle, Bingjie Wang, Qinan Wang, Duncan Watts, Janet Weiland, Edward Wollack, Zhilei Xu, Ziang Yan, Lingzhen Zeng

Proceedings Volume 10708, 107081Y (2018) https://doi.org/10.1117/12.2311812

KEYWORDS: Sensors, Polarization, Signal detection, Detector arrays, Telescopes, Silicon, Receivers, Bolometers, Superconducting detectors

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Proceedings Article | 9 July 2018 Paper

Paper

SiAl alloy feedhorn arrays: material properties, feedhorn design, and astrophysical applications

Aamir Ali, Thomas Essinger-Hileman, Tobias Marriage, John Appel, Charles Bennett, Matthew Berkeley, Berhanu Bulcha, Sumit Dahal, Kevin Denis, Karwan Rostem, Kongpop U-Yen, Edward Wollack, Lingzhen Zeng

Proceedings Volume 10708, 107082P (2018) https://doi.org/10.1117/12.2312817

KEYWORDS: Silicon, Sensors, Aluminum, Copper, Cryogenics, Temperature metrology, Interfaces, Waveguides, Gold, Packaging

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Proceedings Article | 9 July 2018 Paper

Paper

Variable-delay polarization modulators for the CLASS telescopes

Kathleen Harrington, Joseph Eimer, David Chuss, Matthew Petroff, Joseph Cleary, Martin DeGeorge, Theodore Grunberg, Aamir Ali, John Appel, Charles Bennett, Michael Brewer, Ricardo Bustos, Manwei Chan, Jullianna Couto, Sumit Dahal, Kevin Denis, Rolando Dünner, Thomas Essinger-Hileman, Pedro Fluxa, Mark Halpern, Gene Hilton, Gary Hinshaw, Johannes Hubmayr, Jeffrey Iuliano, John Karakla, Tobias Marriage, Jeffrey McMahon, Nathan Miller, Carolina Nuñez, Ivan Padilla, Gonzalo Palma, Lucas Parker, Bastian Pradenas Marquez, Rodrigo Reeves, Carl Reintsema, Karwan Rostem, Deniz Augusto Nunes Valle, Trevor Van Engelhoven, Bingjie Wang, Qinan Wang, Duncan Watts, Janet Weiland, Edward Wollack, Zhilei Xu, Ziang Yan, Lingzhen Zeng

Proceedings Volume 10708, 107082M (2018) https://doi.org/10.1117/12.2313614

KEYWORDS: Polarization, Telescopes, Modulation, Sensors, Computer programming, Control systems, Microscopes, Modulators, Microwave radiation, Physical cosmology

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The search for inflationary primordial gravitational waves and the measurement of the optical depth to reionization, both through their imprint on the large angular scale correlations in the polarization of the cosmic microwave background (CMB), has created the need for high sensitivity measurements of polarization across large fractions of the sky at millimeter wavelengths. These measurements are subject to instrumental and atmospheric 1=f noise, which has motivated the development of polarization modulators to facilitate the rejection of these large systematic effects.

Variable-delay polarization modulators (VPMs) are used in the Cosmology Large Angular Scale Surveyor (CLASS) telescopes as the first element in the optical chain to rapidly modulate the incoming polarization. VPMs consist of a linearly polarizing wire grid in front of a movable flat mirror. Varying the distance between the grid and the mirror produces a changing phase shift between polarization states parallel and perpendicular to the grid which modulates Stokes U (linear polarization at 45°) and Stokes V (circular polarization). The CLASS telescopes have VPMs as the first optical element from the sky; this simultaneously allows a lock-in style polarization measurement and the separation of sky polarization from any instrumental polarization further along in the optical path.

The CLASS VPM wire grids use 50 μm copper-plated tungsten wire with a 160μm spacing across a 60 cm clear aperture. The mirror is mounted on a flexure system with one degree of translational freedom, enabling the required mirror motion while maintaining excellent parallelism with respect to the wire grid. The wire grids and mirrors are held parallel to each other to better than 80 μm, and the wire grids have RMS flatness errors below 50 μm across the 60 cm aperture. The Q-band CLASS VPM was the first VPM to begin observing the CMB full time, starting in the Spring of 2016. The first W-band CLASS VPM was installed in the Spring of 2018.

Proceedings Article | 19 July 2016 Paper

Paper

A wideband 240 GHz receiver for the submillimeter array

C.-Y. Edward Tong, Paul Grimes, Patrick Leiker, Lingzhen Zeng, Wei-Chun Lu, Tse-Jun Chen, Chih-Chiang Han, Ming-Jye Wang

Proceedings Volume 9914, 99140F (2016) https://doi.org/10.1117/12.2232776

KEYWORDS: Receivers, Shape memory alloys, Oscillators, Double sideband modulation, Antennas, Receivers, Polarization, Optical amplifiers, Heart, Waveguides, Transformers

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Proceedings Article | 19 July 2016 Paper

Paper

Next generation receivers for the submillimeter array

Paul Grimes, Ray Blundell, Scott Paine, C.-Y. Edward Tong, Lingzhen Zeng

Proceedings Volume 9914, 991424 (2016) https://doi.org/10.1117/12.2232790

KEYWORDS: Receivers, Polarization, Shape memory alloys, Waveguides, Mirrors, Cryocoolers, Cryogenics, Optical correlators, Space telescopes, Telescopes

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Proceedings Article | 19 July 2016 Paper

Paper

The Cosmology Large Angular Scale Surveyor

Kathleen Harrington, Tobias Marriage, Aamir Ali, John Appel, Charles Bennett, Fletcher Boone, Michael Brewer, Manwei Chan, David Chuss, Felipe Colazo, Sumit Dahal, Kevin Denis, Rolando Dünner, Joseph Eimer, Thomas Essinger-Hileman, Pedro Fluxa, Mark Halpern, Gene Hilton, Gary Hinshaw, Johannes Hubmayr, Jeffrey Iuliano, John Karakla, Jeff McMahon, Nathan Miller, Samuel Moseley, Gonzalo Palma, Lucas Parker, Matthew Petroff, Bastián Pradenas, Karwan Rostem, Marco Sagliocca, Deniz Valle, Duncan Watts, Edward Wollack, Zhilei Xu, Lingzhen Zeng

Proceedings Volume 9914, 99141K (2016) https://doi.org/10.1117/12.2233125

KEYWORDS: Polarization, Telescopes, Sensors, Space telescopes, Mirrors, Receivers, Modulation, Lenses, Optical filters, Physics

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Proceedings Article | 23 July 2014 Paper

Paper

The cosmology large angular scale surveyor (CLASS): 38-GHz detector array of bolometric polarimeters

John Appel, Aamir Ali, Mandana Amiri, Derek Araujo, Charles Bennet, Fletcher Boone, Manwei Chan, Hsiao-Mei Cho, David Chuss, Felipe Colazo, Erik Crowe, Kevin Denis, Rolando Dünner, Joseph Eimer, Thomas Essinger-Hileman, Dominik Gothe, Mark Halpern, Kathleen Harrington, Gene Hilton, Gary Hinshaw, Caroline Huang, Kent Irwin, Glenn Jones, John Karakula, Alan Kogut, David Larson, Michele Limon, Lindsay Lowry, Tobias Marriage, Nicholas Mehrle, Amber Miller, Nathan Miller, Samuel Moseley, Giles Novak, Carl Reintsema, Karwan Rostem, Thomas Stevenson, Deborah Towner, Kongpop U-Yen, Emily Wagner, Duncan Watts, Edward Wollack, Zhilei Xu, Lingzhen Zeng

Proceedings Volume 9153, 91531J (2014) https://doi.org/10.1117/12.2056530

KEYWORDS: Sensors, Bolometers, Technetium, Semiconducting wafers, Terbium, Silicon, Polarimetry, Polarization, Waveguides, Interference (communication)

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Proceedings Article | 23 July 2014 Paper

Paper

CLASS: the cosmology large angular scale surveyor

Thomas Essinger-Hileman, Aamir Ali, Mandana Amiri, John Appel, Derek Araujo, Charles Bennett, Fletcher Boone, Manwei Chan, Hsiao-Mei Cho, David Chuss, Felipe Colazo, Erik Crowe, Kevin Denis, Rolando Dünner, Joseph Eimer, Dominik Gothe, Mark Halpern, Kathleen Harrington, Gene Hilton, Gary Hinshaw, Caroline Huang, Kent Irwin, Glenn Jones, John Karakla, Alan Kogut, David Larson, Michele Limon, Lindsay Lowry, Tobias Marriage, Nicholas Mehrle, Amber Miller, Nathan Miller, Samuel Moseley, Giles Novak, Carl Reintsema, Karwan Rostem, Thomas Stevenson, Deborah Towner, Kongpop U-Yen, Emily Wagner, Duncan Watts, Edward Wollack, Zhilei Xu, Lingzhen Zeng

Proceedings Volume 9153, 91531I (2014) https://doi.org/10.1117/12.2056701

KEYWORDS: Sensors, Polarization, Telescopes, Receivers, Modulation, Dielectric polarization, Mirrors, Optical filters, Reflectors, Optical components

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Proceedings Article | 23 July 2014 Paper

Paper

Instrumentation for single-dish observations with The Greenland Telescope

Paul Grimes, K. Asada, R. Blundell, R. Burgos, H-H. Chang, M. Chen, D. Goldie, C. Groppi, C. Han, P. T. Ho, Y. Huang, M. Inoue, D. Kubo, P. Koch, J. Leech, E. de Lera Acedo, P. Martin-Cocher, H. Nishioka, M. Nakamura, S. Matsushita, S. Paine, N. Patel, P. Raffin, W. Snow, T. Sridharan, R. Srinivasan, C. Thomas, E. Tong, M.-J. Wang, C. Wheeler, S. Withington, G. Yassin, L.-Z. Zeng

Proceedings Volume 9153, 91531V (2014) https://doi.org/10.1117/12.2056969

KEYWORDS: Antennas, Telescopes, Terahertz radiation, Prototyping, Galactic astronomy, Astronomy, Heterodyning, Receivers, Field programmable gate arrays, Observatories

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The Greenland Telescope project will deploy and operate a 12m sub-millimeter telescope at the highest point of the Greenland i e sheet. The Greenland Telescope project is a joint venture between the Smithsonian As- trophysical Observatory (SAO) and the Academia Sinica Institute of Astronomy and Astrophysics (ASIAA). In this paper we discuss the concepts, specifications, and science goals of the instruments being developed for single-dish observations with the Greenland Telescope, and the coupling optics required to couple both them and the mm-VLBI receivers to antenna. The project will outfit the ALMA North America prototype antenna for Arctic operations and deploy it to Summit Station,1 a NSF operated Arctic station at 3,100m above MSL on the Greenland I e Sheet. This site is exceptionally dry, and promises to be an excellent site for sub-millimeter astronomical observations. The main science goal of the Greenland Telescope is to carry out millimeter VLBI observations alongside other telescopes in Europe and the Americas, with the aim of resolving the event horizon of the super-massive black hole at the enter of M87. The Greenland Telescope will also be outfitted for single-dish observations from the millimeter-wave to Tera-hertz bands. In this paper we will discuss the proposed instruments that are currently in development for the Greenland Telescope - 350 GHz and 650 GHz heterodyne array receivers; 1.4 THz HEB array receivers and a W-band bolometric spectrometer. SAO is leading the development of two heterodyne array instruments for the Greenland Telescope, a 48- pixel, 325-375 GHz SIS array receiver, and a 4 pixel, 1.4 THz HEB array receiver. A key science goal for these instruments is the mapping of ortho and para H2D+ in old protostellar ores, as well as general mapping of CO and other transitions in molecular louds. An 8-pixel prototype module for the 350 GHz array is currently being built for laboratory and operational testing on the Greenland Telescope. Arizona State University are developing a 650 GHz 256 pixel SIS array receiver based on the KAPPa SIS mixer array technology and ASIAA are developing 1.4 THz HEB single pixel and array receivers. The University of Cambridge and SAO are collaborating on the development of the CAMbridge Emission Line Surveyor (CAMELS), a W-band `on- hip' spectrometer instrument with a spectral resolution of R ~ 3000. CAMELS will consist of two pairs of horn antennas, feeding super conducting niobium nitride filter banks read by tantalum based Kinetic Inductance Detectors.

Proceedings Article | 24 September 2012 Paper

Paper

Detector architecture of the cosmology large angular scale surveyor

K. Rostem, C. Bennett, D. Chuss, N. Costen, E. Crowe, K. Denis, J. Eimer, N. Lourie, T. Essinger-Hileman, T. Marriage, S. Moseley, T. Stevenson, D. Towner, G. Voellmer, E. Wollack, L. Zeng

Proceedings Volume 8452, 84521N (2012) https://doi.org/10.1117/12.927056

KEYWORDS: Sensors, Waveguides, Silicon, Semiconducting wafers, Metals, Calibration, Microwave radiation, Polarization, Bolometers, Stray light

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Proceedings Article | 24 September 2012 Paper

Paper

The cosmology large angular scale surveyor (CLASS): 40 GHz optical design

Joseph Eimer, Charles Bennett, David Chuss, Tobias Marriage, Edward Wollack, Lingzhen Zeng

Proceedings Volume 8452, 845220 (2012) https://doi.org/10.1117/12.925464

KEYWORDS: Mirrors, Telescopes, Sensors, Polarization, Electroluminescent displays, Modulators, Signal detection, Lenses, Modulation, Optical design

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Proceedings Article | 15 July 2010 Paper

Paper

The Primordial Inflation Polarization Explorer (PIPER)

David Chuss, Peter A. Ade, Dominic Benford, Charles Bennett, Jessie Dotson, Joseph Eimer, Dale Fixsen, Mark Halpern, Gene Hilton, James Hinderks, Gary Hinshaw, Kent Irwin, Michael Jackson, Muzariatu Jah, Nikhil Jethava, Christine Jhabvala, Alan Kogut, Luke Lowe, Nuala McCullagh, Timothy Miller, Paul Mirel, S. Harvey Moseley, Samelys Rodriguez, Karwan Rostem, Elmer Sharp, Johannes Staguhn, Carole Tucker, George Voellmer, Edward Wollack, Lingzhen Zeng

Proceedings Volume 7741, 77411P (2010) https://doi.org/10.1117/12.857119

KEYWORDS: Polarization, Sensors, Telescopes, Modulation, Modulators, Dielectric polarization, Microwave radiation, Anisotropy, Physics, Liquids

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Proceedings Article | 15 July 2010 Paper

Paper

A wide-band smooth-walled feedhorn with low cross polarization for millimeter astronomy

Lingzhen Zeng, Charles Bennett, David Chuss, Edward Wollack

Proceedings Volume 7741, 774129 (2010) https://doi.org/10.1117/12.857679

KEYWORDS: Waveguides, Polarization, Astronomy, Sensors, Manufacturing, Prototyping, Cameras, Microwave radiation, Atrial fibrillation, Beam controllers

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Proceedings Article | 9 July 2008 Paper

Paper

A large free-standing wire grid for microwave variable-delay polarization modulation

G. Voellmer, C. Bennett, D. Chuss, J. Eimer, H. Hui, S. Moseley, G. Novak, E. Wollack, L. Zeng

Proceedings Volume 7014, 70142A (2008) https://doi.org/10.1117/12.787979

KEYWORDS: Polarization, Modulation, Tungsten, Microwave radiation, Polarimetry, Aluminum, Modulators, Mirrors, Gold, Distance measurement

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Showing 5 of 27 publications

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