Persistent Identifier
|
hdl:2014/44738 |
Publication Date
|
2010-06-27 |
Title
| Development of the nano-HEB array for low-background far-IR applications |
Author
| Karasik, Boris S. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Pereverzev, Sergey V. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Olaya, David (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Gershenson, Michael E. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Cantor, Robin (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Kawamura, Jonathan H. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Day, Peter K. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Bumble, Bruce (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
LeDuc, Henry G (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Monacos, Steve P. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Harding, Dennis G. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Santavicca, Daniel (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Carter, Faustin (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Prober, Daniel E. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010) |
Point of Contact
|
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Karasik, Boris S. |
Description
| 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/Hz¹/² at 50 mK determined by the dominating phonon noise. The NEP increases with temperature as ~ T³ reaching ~ 10-¹⁷ W/Hz¹/² at the device critical temperature TC = 330-360 mK. Optical NEP = 8.6×10-¹⁸ W/Hz¹/² at 357 mK and 1.4×10-¹⁸ W/Hz¹/² 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/Hz¹/² and the bandwidth > 150 kHz are suitable for nano-HEB detectors. |
Subject
| Other |
Production Date
| 2010-06-27 |