Search Results - "Megerian, K. G"
-
1
Improved Constraints on Cosmology and Foregrounds from BICEP2 and Keck Array Cosmic Microwave Background Data with Inclusion of 95 GHz Band
Published in Physical review letters (22-01-2016)“…We present results from an analysis of all data taken by the BICEP2 and Keck Array cosmic microwave background (CMB) polarization experiments up to and…”
Get full text
Journal Article -
2
Constraints on Primordial Gravitational Waves Using Planck, WMAP, and New BICEP2/Keck Observations through the 2015 Season
Published in Physical review letters (30-11-2018)“…We present results from an analysis of all data taken by the bicep2/Keck CMB polarization experiments up to and including the 2015 observing season. This…”
Get full text
Journal Article -
3
Design and Performance of the First BICEP Array Receiver
Published in Journal of low temperature physics (01-05-2020)“…Branches of cosmic inflationary models, such as slow-roll inflation, predict a background of primordial gravitational waves that imprints a unique odd-parity…”
Get full text
Journal Article -
4
Photon shot noise limited detection of terahertz radiation using a quantum capacitance detector
Published in Applied physics letters (29-07-2013)“…We observed a sweep rate dependence of the quantum capacitance in a single Cooper-Pair box used as the readout of a Quantum Capacitance Detector. A model was…”
Get full text
Journal Article -
5
Plastic Laminate Antireflective Coatings for Millimeter-Wave Optics in BICEP Array
Published in Journal of low temperature physics (01-06-2023)“…The BICEP/ Keck series of experiments target the cosmic microwave background at degree-scale resolution from the South Pole. Over the next few years, the…”
Get full text
Journal Article -
6
Performance of the NbTiN hot electron bolometer mixer with AlN buffer layer at terahertz frequency range
Published in IEEE transactions on applied superconductivity (01-06-2005)“…We present recent measurements of receiver noise temperature and intermediate frequency (IF) bandwidth in the frequency range 0.8-1.3 THz for waveguide NbTiN…”
Get full text
Journal Article Conference Proceeding -
7
Optical Characterization of the Keck Array and BICEP3 CMB Polarimeters from 2016 to 2019
Published in Journal of low temperature physics (01-05-2020)“…The BICEP/ Keck experiment (BK) is a series of small-aperture refracting telescopes observing degree-scale cosmic microwave background (CMB) polarization from…”
Get full text
Journal Article -
8
Characterizing the Sensitivity of 40 GHz TES Bolometers for BICEP Array
Published in Journal of low temperature physics (01-05-2020)“…The BICEP/Keck (BK) experiment aims to detect the imprint of primordial gravitational waves in the cosmic microwave background polarization, which would be…”
Get full text
Journal Article -
9
Real time quasiparticle tunneling measurements on an illuminated quantum capacitance detector
Published in Applied physics letters (25-06-2012)“…Quasiparticle tunneling events are measured in real time using a quantum capacitance detector (QCD), allowing for the extraction of tunneling rates as a…”
Get full text
Journal Article -
10
Optical Design and Characterization of 40-GHz Detector and Module for the BICEP Array
Published in Journal of low temperature physics (01-05-2020)“…Families of cosmic inflation models predict a primordial gravitational-wave background that imprints B-mode polarization pattern in the cosmic microwave…”
Get full text
Journal Article -
11
Nanopatterning of catalyst by Dip Pen nanolithography (DPN) for synthesis of carbon nanotubes (CNT)
Published in Scanning (01-01-2010)“…Carbon nanotubes (CNT) were synthesized on nanopatterned catalysts. The catalyst nanoparticles were obtained using dip pen nanolithographytechnique. Dip pen…”
Get full text
Journal Article -
12
Fabrication of Nb / Al-Nx / NbTiN junctions for SIS mixer applications
Published in IEEE transactions on applied superconductivity (01-03-2001)“…Nitridation of the aluminum layer is investigated by control of the dc floating potential on a separate rf driven electrode in the vacuum process chamber…”
Get full text
Conference Proceeding Journal Article -
13
Improved Constraints on Primordial Gravitational Waves using Planck , WMAP, and BICEP/ Keck Observations through the 2018 Observing Season
Published in Physical review letters (08-10-2021)“…We present results from an analysis of all data taken by the BICEP2, Keck Array, and BICEP3 CMB polarization experiments up to and including the 2018 observing…”
Get full text
Journal Article -
14
Results and Limits of Time Division Multiplexing for the BICEP Array High Frequency Receivers
Published 24-10-2023“…Journal of Low Temperature Physics (2024) Time-Division Multiplexing is the readout architecture of choice for many ground and space experiments, as it is a…”
Get full text
Journal Article -
15
Bicep2/KECK ARRAY VIII: MEASUREMENT OF GRAVITATIONAL LENSING FROM LARGE-SCALE B-MODE POLARIZATION
Published in The Astrophysical journal (20-12-2016)“…ABSTRACT We present measurements of polarization lensing using the 150 GHz maps, which include all data taken by the BICEP2 and Keck Array Cosmic Microwave…”
Get full text
Journal Article -
16
BICEP2/KECK ARRAY V: MEASUREMENTS OF B-MODE POLARIZATION AT DEGREE ANGULAR SCALES AND 150 GHz BY THE KECK ARRAY
Published in The Astrophysical journal (29-09-2015)“…ABSTRACT The Keck Array is a system of cosmic microwave background polarimeters, each similar to the Bicep2 experiment. In this paper we report results from…”
Get full text
Journal Article -
17
Bicep/Keck XV: The Bicep3 Cosmic Microwave Background Polarimeter and the First Three-year Data Set
Published in The Astrophysical journal (01-03-2022)“…Abstract We report on the design and performance of the B icep3 instrument and its first three-year data set collected from 2016 to 2018. B icep3 is a 52 cm…”
Get full text
Journal Article -
18
BICEP/Keck. XVI. Characterizing Dust Polarization through Correlations with Neutral Hydrogen
Published in The Astrophysical journal (01-03-2023)“…Abstract We characterize Galactic dust filaments by correlating BICEP/Keck and Planck data with polarization templates based on neutral hydrogen (H i )…”
Get full text
Journal Article -
19
BICEP/Keck. XVII. Line-of-sight Distortion Analysis: Estimates of Gravitational Lensing, Anisotropic Cosmic Birefringence, Patchy Reionization, and Systematic Errors
Published in The Astrophysical journal (01-06-2023)“…Abstract We present estimates of line-of-sight distortion fields derived from the 95 and 150 GHz data taken by BICEP2, BICEP3, and the Keck Array up to the…”
Get full text
Journal Article -
20
A distributed lumped-element SIS mixer with very wide instantaneous bandwidth
Published in IEEE transactions on applied superconductivity (01-06-2005)“…A novel type of distributed superconducting mixer with very low output capacitance has been designed for a 330-420 GHz waveguide mixer. In this design, a pair…”
Get full text
Journal Article Conference Proceeding