scholarly journals Photon noise from chaotic and coherent millimeter-wave sources measured with horn-coupled, aluminum lumped-element kinetic inductance detectors

2016 ◽  
Vol 108 (8) ◽  
pp. 083504 ◽  
Author(s):  
D. Flanigan ◽  
H. McCarrick ◽  
G. Jones ◽  
B. R. Johnson ◽  
M. H. Abitbol ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Kinetic Inductance Detectors ◽  
Kinetic Inductance ◽  
Photon Noise ◽  
Lumped Element

scholarly journals Design and performance of dual-polarization lumped-element kinetic inductance detectors for millimeter-wave polarimetry

2018 ◽  
Vol 610 ◽  
pp. A45 ◽  
Author(s):  
H. McCarrick ◽  
G. Jones ◽  
B. R. Johnson ◽  
M. H. Abitbol ◽  
P. A. R. Ade ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Dynamic Range ◽  
Spectral Band ◽  
Low Noise ◽  
Kinetic Inductance Detectors ◽  
Internal Quality ◽  
Kinetic Inductance ◽  
Dual Polarization ◽  
Wave Source ◽  
Lumped Element

Aims. Lumped-element kinetic inductance detectors (LEKIDs) are an attractive technology for millimeter-wave observations that require large arrays of extremely low-noise detectors. We designed, fabricated and characterized 64-element (128 LEKID) arrays of horn-coupled, dual-polarization LEKIDs optimized for ground-based CMB polarimetry. Our devices are sensitive to two orthogonal polarizations in a single spectral band centered on 150 GHz with Δν∕ν = 0.2. The 65 × 65 mm square arrays are designed to be tiled into the focal plane of an optical system. We demonstrate the viability of these dual-polarization LEKIDs with laboratory measurements. Methods. The LEKID modules are tested with an FPGA-based readout system in a sub-kelvin cryostat that uses a two-stage adiabatic demagnetization refrigerator. The devices are characterized using a blackbody and a millimeter-wave source. The polarization properties are measured with a cryogenic stepped half-wave plate. We measure the resonator parameters and the detector sensitivity, noise spectrum, dynamic range, and polarization response. Results. The resonators have internal quality factors approaching 1 × 106. The detectors have uniform response between orthogonal polarizations and a large dynamic range. The detectors are photon-noise limited above 1 pW of absorbed power. The noise-equivalent temperatures under a 3.4 K blackbody load are <100 μK √s. The polarization fractions of detectors sensitive to orthogonal polarizations are >80%. The entire array is multiplexed on a single readout line, demonstrating a multiplexing factor of 128. The array and readout meet the requirements for 4 arrays to be read out simultaneously for a multiplexing factor of 512. Conclusions. This laboratory study demonstrates the first dual-polarization LEKID array optimized specifically for CMB polarimetry and shows the readiness of the detectors for on-sky observations.

scholarly journals Photon-noise limited sensitivity in titanium nitride kinetic inductance detectors

2015 ◽  
Vol 106 (7) ◽  
pp. 073505 ◽  
Author(s):  
J. Hubmayr ◽  
J. Beall ◽  
D. Becker ◽  
H.-M. Cho ◽  
M. Devlin ◽  
...  
Keyword(s):  
Titanium Nitride ◽  
Kinetic Inductance Detectors ◽  
Kinetic Inductance ◽  
Photon Noise ◽  
Limited Sensitivity

scholarly journals Ultrastable millimeter-wave kinetic inductance detectors

2020 ◽  
Vol 116 (3) ◽  
pp. 032601
Author(s):  
M. R. Vissers ◽  
J. E. Austermann ◽  
M. Malnou ◽  
C. M. McKenney ◽  
B. Dober ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Kinetic Inductance Detectors ◽  
Kinetic Inductance

Development of TiN Vacuum-Gap Capacitor Lumped-Element Kinetic Inductance Detectors

2019 ◽  
Vol 199 (3-4) ◽  
pp. 994-1003
Author(s):  
Faouzi Boussaha ◽  
Samir Beldi ◽  
Alessandro Monfardini ◽  
Jie Hu ◽  
Martino Calvo ◽  
...  
Keyword(s):  
Kinetic Inductance Detectors ◽  
Kinetic Inductance ◽  
Lumped Element ◽  
Vacuum Gap

scholarly journals Development of Lumped Element Kinetic Inductance Detectors for the W-Band

2016 ◽  
Vol 184 (1-2) ◽  
pp. 97-102 ◽  
Author(s):  
A. Paiella ◽  
A. Coppolecchia ◽  
M. G. Castellano ◽  
I. Colantoni ◽  
A. Cruciani ◽  
...  
Keyword(s):  
Kinetic Inductance Detectors ◽  
Kinetic Inductance ◽  
Lumped Element ◽  
W Band

Polarization Filter for Microstrip Lumped-Element Kinetic Inductance Detectors

2018 ◽  
Vol 193 (3-4) ◽  
pp. 157-162
Author(s):  
A. Gomez ◽  
M. Calvo ◽  
J. Goupy ◽  
A. Bideaud ◽  
F. Lévy-Bertrand ◽  
...  
Keyword(s):  
Kinetic Inductance Detectors ◽  
Kinetic Inductance ◽  
Polarization Filter ◽  
Lumped Element

scholarly journals Reducing the Susceptibility of Lumped-Element KIDs to Two-Level System Effects

2020 ◽  
Vol 200 (5-6) ◽  
pp. 239-246
Author(s):  
A. L. Hornsby ◽  
P. S. Barry ◽  
S. M. Doyle ◽  
Q. Y. Tang ◽  
E. Shirokoff
Keyword(s):  
Dielectric Materials ◽  
Kinetic Inductance Detectors ◽  
Kinetic Inductance ◽  
Noise Power ◽  
Microwave Background ◽  
Superconducting Resonators ◽  
Lumped Element ◽  
Noise Power Spectral Density ◽  
Power Spectral ◽  
Materials Used

Abstract Arrays of lumped-element kinetic inductance detectors (LEKIDs) optically coupled through an antenna-coupled transmission line are a promising candidate for future cosmic microwave background experiments. However, the dielectric materials used for the microstrip architecture are known to degrade the performance of superconducting resonators. In this paper, we investigate the feasibility of microstrip coupling to a LEKID, focusing on a systematic study of the effect of depositing amorphous silicon nitride on a LEKID. The discrete and spatially separated inductive and capacitive regions of the LEKID allow us to vary the degree of dielectric coverage and determine the limitations of the microstrip coupling architecture. We show that by careful removal of dielectric from regions of high electric field in the capacitor, there is minimal degradation in dielectric loss tangent of a partially covered lumped-element resonator. We present the effects on the resonant frequency and noise power spectral density and, using the dark responsivity, provide an estimate for the resulting detector sensitivity.

scholarly journals Millimeter-Wave Polarimeters Using Kinetic Inductance Detectors for TolTEC and Beyond

2018 ◽  
Vol 193 (3-4) ◽  
pp. 120-127 ◽  
Author(s):  
J. E. Austermann ◽  
J. A. Beall ◽  
S. A. Bryan ◽  
B. Dober ◽  
J. Gao ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Kinetic Inductance Detectors ◽  
Kinetic Inductance
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