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Development of the nano-HEB array for low-background far-IR applications

Karasik, Boris S. and Pereverzev, Sergey V. and Olaya, David and Gershenson, Michael E. and Cantor, Robin and Kawamura, Jonathan H. and Day, Peter K. and Bumble, Bruce and LeDuc, Henry G. and Monacos, Steve P. and Harding, Dennis G. and Santavicca, Daniel and Carter, Faustin and Prober, Daniel E. (2010) Development of the nano-HEB array for low-background far-IR applications. In: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V. Proceedings of SPIE. No.7741. Society of Photo-Optical Instrumentation Engineers , Bellingham, WA, Art. No. 774119. ISBN 9780819482310.

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We present an overview of the recent progress made in the development of a far-IR array of ultrasensitive hot-electron nanobolometers (nano-HEB) made from thin titanium (Ti) films. We studied electrical noise, signal and noise bandwidth, single-photon detection, optical noise equivalent power (NEP), and a microwave SQUID (MSQUID) based frequency domain multiplexing (FDM) scheme. The obtained results demonstrate the very low electrical NEP down to 1.5 × 10^(-20) W/Hz^(1/2) at 50 mK determined by the dominating phonon noise. The NEP increases with temperature as ~ T^3 reaching ~10^(-17) W/Hz^(1/2) at the device critical temperature T_C = 330-360 mK. Optical NEP = 8.6 × 10^(-18) W/Hz^(1/2) at 357 mK and 1.4 × 10^(-18) W/Hz^(1/2) at 100 mK respectively, agree with thermal and electrical data. The optical coupling efficiency provided by a planar antenna was greater than 50%. Single 8-μm photons have been detected for the first time using a nano-HEB operating at 50-200 mK thus demonstrating a potential of these detectors for future photon-counting applications in mid-IR and far-IR. In order to accommodate the relatively high detector speed (~μs at 300 mK, ~100 μs at 100 mK), an MSQUID based FDM multiplexed readout with GHz carrier frequencies has been built. Both the readout noise ~2 pA/Hz^(1/2) and the bandwidth > 150 kHz are suitable for nano-HEB detectors.

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Additional Information:© 2010 SPIE. This research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration and funded in part through the internal Research and Technology Development program. The research of S.V. Pereverzev was supported by an appointment to the NASA Postdoctoral Program at the Jet Propulsion Laboratory, California Institute of Technology, administered by Oak Ridge Associated Universities through a contract with NASA. The authors thank A. Soibel (JPL) for lending the 8-µm QCL and M. Wanke (Sandia National Laboratories) for lending the 100-µm QCL.
Group:Keck Institute for Space Studies
Funding AgencyGrant Number
JPL Research and Technology Development FundUNSPECIFIED
NASA Postdoctoral ProgramUNSPECIFIED
Subject Keywords:hot-electron, nanobolometer, single-photon, MSQUID, FIR detector, antenna-coupled
Series Name:Proceedings of SPIE
Issue or Number:7741
Record Number:CaltechAUTHORS:20160311-143706778
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Official Citation:Boris S. Karasik ; Sergey V. Pereverzev ; David Olaya ; Michael E. Gershenson ; Robin Cantor ; Jonathan H. Kawamura ; Peter K. Day ; Bruce Bumble ; Henry G. LeDuc ; Steve P. Monacos ; Dennis G. Harding ; Daniel Santavicca ; Faustin Carter and Daniel E. Prober "Development of the nano-HEB array for low-background far-IR applications", Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 774119 (July 15, 2010); doi:10.1117/12.856682
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:65314
Deposited By: Colette Connor
Deposited On:14 Mar 2016 19:50
Last Modified:10 Nov 2021 23:44

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