985 citations · 1.4k across the 18 of their papers we have counts for
19 papers
Design and Performance of 30/40 GHz Diplexed Focal Plane for BICEP Array
Corwin Shiu, Ahmed Soliman, Roger O'Brient +11
We demonstrate a wide-band diplexed focal plane suitable for observing low-frequency foregrounds that are important for cosmic microwave background polarimetry. The antenna element…
Thermal Testing for Cryogenic CMB Instrument Optical Design
D. C. Goldfinger, P. A. R. Ade, Z. Ahmed +83
Observations of the Cosmic Microwave Background rely on cryogenic instrumentation with cold detectors, readout, and optics providing the low noise performance and instrumental stab…
Observing low elevation sky and the CMB Cold Spot with BICEP3 at the South Pole
J. Kang, P. A. R. Ade, Z. Ahmed +84
BICEP3 is a 520 mm aperture on-axis refracting telescope at the South Pole, which observes the polarization of the cosmic microwave background (CMB) at 95 GHz to search for the B-m…
Particle response of antenna-coupled TES arrays: results from SPIDER and the lab
B. Osherson, J. P. Filippini, J. Fu +45
Future mm-wave and sub-mm space missions will employ large arrays of multiplexed Transition Edge Sensor (TES) bolometers. Such instruments must contend with the high flux of cosmic…
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…
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…
BICEP Array cryostat and mount design
M. Crumrine, P. A. R. Ade, Z. Ahmed +74
Bicep Array is a cosmic microwave background (CMB) polarization experiment that will begin observing at the South Pole in early 2019. This experiment replaces the five Bicep2 style…
BICEP Array: a multi-frequency degree-scale CMB polarimeter
Howard Hui, P. A. R. Ade, Z. Ahmed +75
BICEP Array is the newest multi-frequency instrument in the BICEP/Keck Array program. It is comprised of four 550 mm aperture refractive telescopes observing the polarization of th…
Characterization and Improvement of the Thermal Stability of TES Bolometers
Rita Sonka, James J. Bock, Krikor G. Megerian +3
We study the mechanism of instability in transition edge sensor (TES) bolometers used for ground based observations of the Cosmic Microwave Background (CMB) at 270GHz. The instabil…
BICEP2 / Keck Array IX: New Bounds on Anisotropies of CMB Polarization Rotation and Implications for Axion-Like Particles and Primordial Magnetic Fields
Keck Array, BICEP2 Collaborations, : +65
We present the strongest constraints to date on anisotropies of cosmic microwave background (CMB) polarization rotation derived from 150 GHz data taken by the BICEP2/Keck Array CMB…
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…
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…
A cryogenic rotation stage with a large clear aperture for the half-wave plates in the Spider instrument
Sean Bryan, Peter Ade, Mandana Amiri +47
We describe the cryogenic half-wave plate rotation mechanisms built for and used in Spider, a polarization-sensitive balloon-borne telescope array that observed the Cosmic Microwav…
The Thermal Design, Characterization, and Performance of the SPIDER Long-Duration Balloon Cryostat
J. E. Gudmundsson, P. A. R. Ade, M. Amiri +40
We describe the SPIDER flight cryostat, which is designed to cool six millimeter-wavelength telescopes during an Antarctic long-duration balloon flight. The cryostat, one of the la…
A Joint Analysis of BICEP2/Keck Array and Planck Data
BICEP2/Keck, Planck Collaborations, : +276
We report the results of a joint analysis of data from BICEP2/Keck Array and Planck. BICEP2 and Keck Array have observed the same approximately 400 deg patch of sky centered on…
Attitude determination for balloon-borne experiments
N. N. Gandilo, P. A. R. Ade, M. Amiri +64
An attitude determination system for balloon-borne experiments is presented. The system provides pointing information in azimuth and elevation for instruments flying on stratospher…
BLASTbus electronics: general-purpose readout and control for balloon-borne experiments
S. J. Benton, P. A. Ade, M. Amiri +66
We present the second generation BLASTbus electronics. The primary purposes of this system are detector readout, attitude control, and cryogenic housekeeping, for balloon-borne tel…
Pointing control for the SPIDER balloon-borne telescope
Jamil A. Shariff, Peter A. R. Ade, Mandana Amiri +45
We present the technology and control methods developed for the pointing system of the SPIDER experiment. SPIDER is a balloon-borne polarimeter designed to detect the imprint of pr…