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In-Flight Performance of Spider's 280 GHz Receivers
Elle C. Shaw, P. A. R. Ade, S. Akers +84
SPIDER is a balloon-borne instrument designed to map the cosmic microwave background at degree-angular scales in the presence of Galactic foregrounds. SPIDER has mapped a large sky…
2022 Upgrade and Improved Low Frequency Camera Sensitivity for CMB Observation at the South Pole
A. Soliman, P. A. R. Ade, Z. Ahmed +83
Constraining the Galactic foregrounds with multi-frequency Cosmic Microwave Background (CMB) observations is an essential step towards ultimately reaching the sensitivity to measur…
Probing Cosmic Inflation with the LiteBIRD Cosmic Microwave Background Polarization Survey
LiteBIRD Collaboration, E. Allys, K. Arnold +188
LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for primordial cosmology and…
BICEP Array: 150 GHz detector module development
A. Schillaci, P. A. R. Ade, Z. Ahmed +81
The BICEP/Keck Collaboration is currently leading the quest to the highest sensitivity measurements of the polarized CMB anisotropies on degree scale with a series of cryogenic tel…
BICEP / Keck XV: The BICEP3 CMB Polarimeter and the First Three Year Data Set
Keck Collaboration, P. A. R. Ade, Z. Ahmed +89
We report on the design and performance of the BICEP3 instrument and its first three-year data set collected from 2016 to 2018. BICEP3 is a 52cm aperture, refracting telescope desi…
Design and performance of wide-band corrugated walls for the BICEP Array detector modules at 30/40 GHz
A. Soliman, P. A. R. Ade, Z. Ahmed +75
BICEP Array is a degree-scale Cosmic Microwave Background (CMB) experiment that will search for primordial B-mode polarization while constraining Galactic foregrounds. BICEP Array…
Ultra-Thin Large-Aperture Vacuum Windows for Millimeter Wavelengths Receivers
Denis Barkats, Marion I. Dierickx, John M. Kovac +75
Targeting faint polarization patterns arising from Primordial Gravitational Waves in the Cosmic Microwave Background requires excellent observational sensitivity. Optical elements…
2017 upgrade and performance of BICEP3: a 95GHz refracting telescope for degree-scale CMB polarization
Jae Hwan Kang, P. A. R. Ade, Z. Ahmed +74
BICEP3 is a 520mm aperture on-axis refracting telescope observing the polarization of the cosmic microwave background (CMB) at 95GHz in search of the B-mode signal originating from…
The LiteBIRD Satellite Mission - Sub-Kelvin Instrument
A. Suzuki, P. A. R. Ade, Y. Akiba +149
Inflation is the leading theory of the first instant of the universe. Inflation, which postulates that the universe underwent a period of rapid expansion an instant after its birth…
BICEP3 focal plane design and detector performance
H. Hui, P. A. R. Ade, Z. Ahmed +56
BICEP3, the latest telescope in the BICEP/Keck program, started science observations in March 2016. It is a 550mm aperture refractive telescope observing the polarization of the co…
Optical Characterization of the BICEP3 CMB Polarimeter at the South Pole
K. S. Karkare, P. A. R. Ade, Z. Ahmed +56
BICEP3 is a small-aperture refracting cosmic microwave background (CMB) telescope designed to make sensitive polarization maps in pursuit of a potential B-mode signal from inflatio…
Initial Performance of BICEP3: A Degree Angular Scale 95 GHz Band Polarimeter
W. L. K. Wu, P. A. R. Ade, Z. Ahmed +49
BICEP3 is a aperture telescope with cold, on-axis, refractive optics designed to observe at the band from the South Pole. It is the newest member of the BICEP/Kec…
SPT-3G: A Next-Generation Cosmic Microwave Background Polarization Experiment on the South Pole Telescope
B. A. Benson, P. A. R. Ade, Z. Ahmed +61
We describe the design of a new polarization sensitive receiver, SPT-3G, for the 10-meter South Pole Telescope (SPT). The SPT-3G receiver will deliver a factor of ~20 improvement i…
Self-Calibration of BICEP1 Three-Year Data and Constraints on Astrophysical Polarization Rotation
J. P. Kaufman, N. J. Miller, M. Shimon +33
Cosmic Microwave Background (CMB) polarimeters aspire to measure the faint -mode signature predicted to arise from inflationary gravitational waves. They also have the potential…
BICEP2 and Keck Array operational overview and status of observations
R. W. Ogburn, P. A. R. Ade, R. W. Aikin +50
The BICEP2 and Keck Array experiments are designed to measure the polarization of the cosmic microwave background (CMB) on angular scales of 2-4 degrees (l=50-100). This is the reg…