Records |
Author |
Fedorov, G. E.; Stepanova, T. S.; Gazaliev, A. S.; Gaiduchenko, I. A.; Kaurova, N. S.; Voronov, B. M.; Goltzman, G. N. |
Title |
Asymmetric devices based on carbon nanotubes for terahertz-range radiation detection |
Type |
Journal Article |
Year |
2016 |
Publication |
Semicond. |
Abbreviated Journal |
Semicond. |
Volume |
50 |
Issue |
12 |
Pages |
1600-1603 |
Keywords |
carbon nanotubes, CNT detectors |
Abstract |
Various asymmetric detecting devices based on carbon nanotubes (CNTs) are studied. The asymmetry is understood as inhomogeneous properties along the conducting channel. In the first type of devices, an inhomogeneous morphology of the CNT grid is used. In the second type of devices, metals with highly varying work functions are used as the contact material. The relation between the sensitivity and detector configuration is analyzed. Based on the data obtained, approaches to the development of an efficient detector of terahertz radiation, based on carbon nanotubes are proposed. |
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ISSN |
1063-7826 |
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Serial |
1776 |
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Author |
Dauler, E. A.; Kerman, A. J.; Robinson, B. S.; Yang, J. K. W.; Voronov, B. M.; Gol’tsman, G. N.; Berggren, K. K. |
Title |
Achieving high counting rates in superconducting nanowire single-photon detectors |
Type |
Conference Article |
Year |
2006 |
Publication |
CLEO/QELS |
Abbreviated Journal |
CLEO/QELS |
Volume |
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Issue |
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Pages |
JTuD3 (1 to 2) |
Keywords |
SSPD; SNSPD; Detectors; Photodetectors; Quantum optics; Quantum detectors; Photon counting; Photons; Pulse shaping; Quantum communications; Single photon detectors; Superconductors |
Abstract |
Kinetic inductance is determined to be the primary limitation to the counting rate of superconducting nanowire single-photon counters. Approaches for overcoming this limitation will be discussed. |
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Publisher |
Optical Society of America |
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Conference |
Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies |
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no |
Call Number |
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Serial |
1451 |
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Author |
Semenov, A. V.; Devyatov, I. A.; Ryabchun, S. A.; Maslennikov, S. N.; Maslennikova, A. S.; Larionov, P. A.; Voronov, B. M.; Chulkova, G. M. |
Title |
Absorption of terahertz electromagnetic radiation in dirty superconducting film at arbitrary type of the spectral functions |
Type |
Journal Article |
Year |
2011 |
Publication |
Rus. J. Radio Electron. |
Abbreviated Journal |
Rus. J. Radio Electron. |
Volume |
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Issue |
10 |
Pages |
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Keywords |
terahertz electromagnetic radiation; superconductors; detectors of terahertz range |
Abstract |
A problem of absorption of high-frequency electromagnetic field in dirty superconductor is treated within Keldysh technic. Expression for the source term in the kinetic equation for quasiparticle distribution function is derived. The result is significant for deriving a consistent microscopic theory of superconducting detectors for terahertz frequency range, perspective detectors on kinetic inductance of current-biased superconducting strip and on Josephson inductance of tunnel. |
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Notes |
7 pages |
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no |
Call Number |
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Serial |
1117 |
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Author |
Shurakov, A.; Tong, Cheuk-yu E.; Grimes, P.; Blundell, R.; Golt'sman, G. |
Title |
A microwave reflection readout scheme for hot electron bolometric direct detector |
Type |
Journal Article |
Year |
2015 |
Publication |
IEEE Trans. THz Sci. Technol. |
Abbreviated Journal |
IEEE Trans. THz Sci. Technol. |
Volume |
5 |
Issue |
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Pages |
81-84 |
Keywords |
HEB detectors |
Abstract |
In this paper, we propose and present data from a fast THz detector based on the repurpose of hot electron bolometer mixers (HEB) fabricated from superconducting NbN thinfilm. This detector is essentially a traditional NbN bolometer element that operates under the influence of a microwave pump. The in-jected microwave power serves the dual purpose of enhancing the detector sensitivity and reading out the impedance changes of the device in response to incidentTHz radiation. We have measured an optical Noise Equivalent Power of 4 pW/ Hz for our detector at a bath temperature of 4.2 K. The measurement frequency was 0.83 THz and the modulation frequency was 1.48 kHz. The readout
scheme is versatile and facilitates both high-speed operation as well as multi-pixel applications. |
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RPLAB @ atomics90 @ |
Serial |
950 |
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