Search Results - "Hubmayr, J."
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1
Frequency-tunable superconducting resonators via nonlinear kinetic inductance
Published in Applied physics letters (10-08-2015)“…We have designed, fabricated, and tested a frequency-tunable high-Q superconducting resonator made from a niobium titanium nitride film. The frequency…”
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2
Broadband parametric amplifiers based on nonlinear kinetic inductance artificial transmission lines
Published in Applied physics letters (10-04-2017)“…We present broadband parametric amplifiers based on the kinetic inductance of superconducting NbTiN thin films in an artificial (lumped-element) transmission…”
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3
Measurements of the Temperature and E-mode Polarization of the CMB from 500 Square Degrees of SPTpol Data
Published in The Astrophysical journal (10-01-2018)“…We present measurements of the E-mode polarization angular auto-power spectrum (EE) and temperature-E-mode cross-power spectrum (TE) of the cosmic microwave…”
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The Atacama Cosmology Telescope: A CMB lensing mass map over 2100 square degrees of sky and its cross-correlation with BOSS-CMASS galaxies
Published in Monthly notices of the Royal Astronomical Society (01-01-2021)“…We construct cosmic microwave background lensing mass maps using data from the 2014 and 2015 seasons of observations with the Atacama Cosmology Telescope…”
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5
Ultrastable millimeter-wave kinetic inductance detectors
Published in Applied physics letters (21-01-2020)“…We demonstrate microwave kinetic inductance detectors (MKIDs) whose sensitivity is limited by photon noise at signal frequencies as low as 50 mHz. The subhertz…”
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6
A microwave SQUID multiplexer optimized for bolometric applications
Published in Applied physics letters (08-02-2021)“…A microwave superconducting quantum interference device multiplexer has been optimized for reading out large arrays of superconducting transition-edge sensor…”
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7
Microwave SQUID multiplexer demonstration for cosmic microwave background imagers
Published in Applied physics letters (11-12-2017)“…Key performance characteristics are demonstrated for the microwave superconducting quantum interference device (SQUID) multiplexer (μmux) coupled to transition…”
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8
Sensitivity of the Prime-Cam Instrument on the CCAT-Prime Telescope
Published in Journal of low temperature physics (01-05-2020)“…CCAT-prime is a new 6 m crossed Dragone telescope designed to characterize the cosmic microwave background (CMB) polarization and foregrounds, measure the…”
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9
Three-Wave Mixing Kinetic Inductance Traveling-Wave Amplifier with Near-Quantum-Limited Noise Performance
Published in PRX quantum (01-01-2021)“…We present a theoretical model and experimental characterization of a microwave kinetic inductance traveling-wave (KIT) amplifier, whose noise performance,…”
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10
Counting near infrared photons with microwave kinetic inductance detectors
Published in Applied physics letters (22-05-2017)“…We demonstrate photon counting at 1550 nm wavelength using microwave kinetic inductance detectors (MKIDs) made from TiN/Ti/TiN trilayer films with…”
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11
Advanced ACTPol Cryogenic Detector Arrays and Readout
Published in Journal of low temperature physics (01-08-2016)“…Advanced ACTPol is a polarization-sensitive upgrade for the 6 m aperture Atacama Cosmology Telescope, adding new frequencies and increasing sensitivity over…”
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12
Photon-noise limited sensitivity in titanium nitride kinetic inductance detectors
Published in Applied physics letters (16-02-2015)“…We demonstrate photon-noise limited performance at sub-millimeter wavelengths in feedhorn-coupled, microwave kinetic inductance detectors made of a TiN/Ti/TiN…”
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13
The CLASS 150/220 GHz Polarimeter Array: Design, Assembly, and Characterization
Published in Journal of low temperature physics (01-04-2020)“…We report on the development of a polarization-sensitive dichroic (150/220 GHz) detector array for the Cosmology Large Angular Scale Surveyor (CLASS) delivered…”
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14
Detection of B-mode polarization in the cosmic microwave background with data from the South Pole Telescope
Published in Physical review letters (04-10-2013)“…Gravitational lensing of the cosmic microwave background generates a curl pattern in the observed polarization. This "B-mode" signal provides a measure of the…”
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15
Characterization of the Mid-Frequency Arrays for Advanced ACTPol
Published in Journal of low temperature physics (01-11-2018)“…The Advanced ACTPol upgrade on the Atacama Cosmology Telescope aims to improve the measurement of the cosmic microwave background anisotropies and…”
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16
The Design of the CCAT-prime Epoch of Reionization Spectrometer Instrument
Published in Journal of low temperature physics (01-05-2020)“…The epoch of reionization spectrometer (EoR-Spec) is an instrument module for the Prime-Cam receiver of the 6-m aperture CCAT-prime Telescope at 5600 m in…”
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17
Superconducting micro-resonator arrays with ideal frequency spacing
Published in Applied physics letters (18-12-2017)“…We present a wafer trimming technique for producing superconducting micro-resonator arrays with highly uniform frequency spacing. With the light-emitting diode…”
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18
Constraints on Cosmological Parameters from the 500 deg2 SPTPOL Lensing Power Spectrum
Published in The Astrophysical journal (10-01-2020)“…We present cosmological constraints based on the cosmic microwave background (CMB) lensing potential power spectrum measurement from the recent 500 deg2 SPTpol…”
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19
CMB Polarization B-mode Delensing with SPTpol and Herschel
Published in The Astrophysical journal (01-09-2017)“…We present a demonstration of delensing the observed cosmic microwave background (CMB) B-mode polarization anisotropy. This process of reducing the…”
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20
Kinetic Inductance Traveling Wave Amplifier Designs for Practical Microwave Readout Applications
Published in Journal of low temperature physics (2024)“…A Kinetic Inductance Traveling Wave Amplifier (KIT) utilizes the nonlinear kinetic inductance of superconducting films, particularly niobium titanium nitride…”
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