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Design and Performance of 220 and 270 GHz Bandpass Filters for BICEP Array
A. Steiger, The BICEP/Keck Collaboration, P. A. R. Ade +90
The BICEP Array (BA) is the latest in the BICEP/ Keck series of experiments that aim to measure the polarization of the cosmic microwave background (CMB) with small aperture polari…
Improved Absolute Polarization Calibrator for BICEP CMB Polarimeters
A. R. Polish, P. A. R. Ade, Z. Ahmed +89
Cosmic birefringence is a hypothesized parity violation in electromagnetism that predicts a frequency-independent polarization rotation as light propagates. This would rotate the l…
BICEP/Keck XIX: Extremely Thin Composite Polymer Vacuum Windows for BICEP and Other High Throughput Millimeter Wave Telescopes
Keck Collaboration, P. A. R. Ade, Z. Ahmed +90
Millimeter-wave refracting telescopes targeting the degree-scale structure of the cosmic microwave background (CMB) have recently grown to diffraction-limited apertures of over 0.5…
Improved Polarization Calibration of the BICEP3 CMB Polarimeter at the South Pole
J. Cornelison, C. Vergès, P. A. R. Ade +83
The BICEP3 Polarimeter is a small aperture, refracting telescope, dedicated to the observation of the Cosmic Microwave Background (CMB) at 95GHz. It is designed to target degree an…
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…
Polarization Calibration of the BICEP3 CMB polarimeter at the South Pole
J. Cornelison, P. A. R. Ade, Z. Ahmed +84
The BICEP3 CMB Polarimeter is a small-aperture refracting telescope located at the South Pole and is specifically designed to search for the possible signature of inflationary grav…
Optical Design and Characterization of 40-GHz Detector and Module for the BICEP Array
A. Soliman, P. A. R. Ade, Z. Ahmed +66
Families of cosmic inflation models predict a primordial gravitational-wave background that imprints B-mode polarization pattern in the Cosmic Microwave Background (CMB). High sens…
Design and performance of the first BICEP Array receiver
A. Schillaci, P. A. R. Ade, Z. Ahmed +66
Branches of cosmic inflationary models, such as slow-roll inflation, predict a background of primordial gravitational waves that imprints a unique odd-parity B-mode pattern in the…
Characterizing the Sensitivity of 40 GHz TES Bolometers for BICEP Array
C. Zhang, P. A. R. Ade, Z. Ahmed +66
The BICEP/Keck (BK) experiment aims to detect the imprint of primordial gravitational waves in the Cosmic Microwave Background polarization, which would be direct evidence of the i…
Optical characterization of the Keck Array and BICEP3 CMB Polarimeters from 2016 to 2019
Keck Collaboration, T. St Germaine, P. A. R. Ade +71
The BICEP/Keck experiment (BK) is a series of small-aperture refracting telescopes observing degree-scale Cosmic Microwave Background (CMB) polarization from the South Pole in sear…
Microwave multiplexing on the Keck Array
Ari Cukierman, Zeeshan Ahmed, Shawn Henderson +82
We describe an on-sky demonstration of a microwave-multiplexing readout system in one of the receivers of the Keck Array, a polarimetry experiment observing the cosmic microwave ba…
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…
BICEP3 performance overview and planned Keck Array upgrade
J. A. Grayson, P. A. R. Ade, Z. Ahmed +56
BICEP3 is a 520 mm aperture, compact two-lens refractor designed to observe the polarization of the cosmic microwave background (CMB) at 95 GHz. Its focal plane consists of modular…
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…