| Records |
| Author |
Semenov, A. D.; Hübers, H.-W.; Gol’tsman, G. N.; Smirnov, K. |
| Title |
Superconducting quantum detector for astronomy and X-ray spectroscopy |
Type |
Conference Article |
| Year |
2002 |
Publication |
Proc. Int. Workshop on Supercond. Nano-Electronics Devices |
Abbreviated Journal |
Proc. Int. Workshop on Supercond. Nano-Electronics Devices |
| Volume |
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Issue |
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Pages |
201-210 |
| Keywords |
NbN SSPD, SNSPD, SQD, superconducting quantum detectors, X-ray spectroscopy |
| Abstract |
We propose the novel concept of ultra-sensitive energy-dispersive superconducting quantum detectors prospective for applications in astronomy and X-ray spectroscopy. Depending on the superconducting material and operation conditions, such detector may allow realizing background limited noise equivalent power 10−21 W Hz−1/2 in the terahertz range when exposed to 4-K background radiation or counting of 6-keV photon with almost 10—4 energy resolution. Planar layout and relatively simple technology favor integration of elementary detectors into a detector array. |
| Address |
Naples, Italy |
| Corporate Author |
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Thesis |
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| Publisher |
Springer |
Place of Publication |
Boston, MA |
Editor |
Pekola, J.; Ruggiero, B.; Silvestrini, P. |
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Edition |
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ISBN |
978-1-4615-0737-6 |
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Conference |
International Workshop on Superconducting Nano-Electronics Devices, May 28-June 1, 2001 |
| Notes |
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Call Number  |
semenov2002superconducting |
Serial |
1525 |
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| Author |
Baryshev, A.; Lauria, E.; Hesper, R.; Zijlstra, T.; Wild, W. |
| Title |
Fixed-tuned waveguide 0.6 THz SIS mixer with wide band IF |
Type |
Conference Article |
| Year |
2002 |
Publication |
Proc. 13th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
1-9 |
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Place of Publication |
Cambridge, MA, USA |
Editor |
Harward University |
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Approved |
no |
| Call Number |
RPLAB @ s @ nt_SIS_136at0p65THz |
Serial |
328 |
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| Author |
Blundell, R.; Barrett, J.; H. Gibson, C. Gotteib; Hunter, T.; Kimberk, R.; Leiker, S.; Marrone, D.; Meledin, D.; Paine, S.; Papa, D. C.; Plante, R.; Riddle, P.; Smith, M.; Sridharan, T.; Tong, C. E.; Wilson, R.; Diaz, M.; Bronfman, L.; May, J.; Otarola, A.; Radford, S. J. |
| Title |
Prospects for terahertz radio astronomy from Northean Chile |
Type |
Conference Article |
| Year |
2002 |
Publication |
Proc. 13th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
159-166 |
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Place of Publication |
Cambridge, MA, USA |
Editor |
Harvard university |
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no |
| Call Number |
RPLAB @ s @ meledin_2p5_stability |
Serial |
327 |
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| Author |
Omar, A.; Anantharamaiah, K. R.; Rupen, M.; Rigby, J. |
| Title |
VLA detection of OH absorption from the elliptical galaxy NGC 1052 |
Type |
Journal Article |
| Year |
2002 |
Publication |
Astron. Astrophys. |
Abbreviated Journal |
A&A |
| Volume |
381 |
Issue |
1 |
Pages |
L29-L32 |
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| ISSN |
0004-6361 |
ISBN |
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Approved |
no |
| Call Number |
RPLAB @ s @ |
Serial |
435 |
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| Author |
Shytov, A. V.; Levitov, L. S.; Beenakker, C. W. J. |
| Title |
Electromechanical noise in a diffusive conductor |
Type |
Journal Article |
| Year |
2002 |
Publication |
Phys. Rev. Lett. |
Abbreviated Journal |
Phys. Rev. Lett. |
| Volume |
88 |
Issue |
22 |
Pages |
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| Keywords |
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| Abstract |
Electrons moving in a conductor can transfer momentum to the lattice via collisions with impurities and boundaries, giving rise to a fluctuating mechanical stress tensor. The root-mean-squared momentum transfer per scattering event in a disordered metal (of dimension L greater than the mean free path l and screening length xi) is found to be reduced below the Fermi momentum by a factor of order l/L for shear fluctuations and (xi/L)^2 for pressure fluctuations. The excitation of an elastic bending mode by the shear fluctuations is estimated to fall within current experimental sensitivity for a nanomechanical oscillator. |
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Edition |
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| ISSN |
0031-9007 |
ISBN |
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Approved |
no |
| Call Number |
RPLAB @ s @ |
Serial |
433 |
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| Author |
Ediss, G. A.; Koller, D. |
| Title |
68.5 to 118 GHz measurements of possible infrared filter materials: black polyethylene, Zitex, and grooved and un-grooved fluorogold and HDPE |
Type |
Miscellaneous |
| Year |
2002 |
Publication |
ALMA Memo |
Abbreviated Journal |
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| Volume |
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Issue |
412 |
Pages |
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Approved |
no |
| Call Number |
RPLAB @ s @ |
Serial |
446 |
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| Author |
Uzawa, Y.; Miki, S.; Wang, Z.; Kawakami, A.; Kroug, M.; Yagoubov, P.; Kollberg, E. |
| Title |
Performance of a quasi-optical NbN hot-electron bolometric mixer at terahertz frequencies |
Type |
Journal Article |
| Year |
2002 |
Publication |
Superconductor Science and Technology |
Abbreviated Journal |
Supercond. Sci. Technol. |
| Volume |
15 |
Issue |
1 |
Pages |
141-145 |
| Keywords |
HEB, mixer |
| Abstract |
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Series Issue |
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Edition |
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| ISSN |
0953-2048 |
ISBN |
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| Notes |
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Approved |
no |
| Call Number |
RPLAB @ s @ |
Serial |
548 |
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| Author |
Deang, Jennifer; Du, Qiang; Gunzburger, Max D. |
| Title |
Modeling and computation of random thermal fluctuations and material defects in the Ginzburg–Landau model for superconductivity |
Type |
Journal Article |
| Year |
2002 |
Publication |
J. Comp. Phys. |
Abbreviated Journal |
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| Volume |
181 |
Issue |
1 |
Pages |
45-67 |
| Keywords |
noise; superconductivity; finite element methods; fluctuations. |
| Abstract |
It is well known that thermal fluctuations and material impurities affect the motion of vortices in superconductors. These effects are modeled by variants of a time-dependent Ginzburg-Landau model containing either additive or multiplicative noise. Numerical computations are presented that illustrate the effects that noise has on the dynamics of vortex nucleation and vortex motion. For an additive noise model with relatively low variances, it is found that the vortices form a quasi-steady-state lattice in which the vortex core sizes remain roughly fixed but their positions vibrate. Two multiplicative noise models are considered. For one model having relatively long-range order, the sizes of the vortex cores vary in time and from one vortex to another. Finally, for the additive noise case, we show that as the variance of the noise tends to zero, solutions of the stochastic time-dependent Ginzburg-Landau equations converge to solutions of the corresponding equations with no noise. |
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| Notes |
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Approved |
no |
| Call Number |
RPLAB @ gujma @ |
Serial |
758 |
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| Author |
Semenov, Alexei D; Gol'tsman, Gregory N; Sobolewski, Roman |
| Title |
Hot-electron effect in superconductors and its applications for radiation sensors |
Type |
Journal Article |
| Year |
2002 |
Publication |
Superconductor Science and Technology |
Abbreviated Journal |
Supercond. Sci. Technol. |
| Volume |
15 |
Issue |
4 |
Pages |
R1-R16 |
| Keywords |
HEB, SSPD |
| Abstract |
The paper reviews the main aspects of nonequilibrium hot-electron phenomena in superconductors and various theoretical models developed to describe the hot-electron effect. We discuss implementation of the hot-electron avalanche mechanism in superconducting radiation sensors and present the most successful practical devices, such as terahertz mixers and direct intensity detectors, for far-infrared radiation. Our presentation also includes the novel approach to hot-electron quantum detection implemented in superconducting x-ray to optical photon counters. |
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Series Issue |
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Edition |
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| ISSN |
0953-2048 |
ISBN |
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Medium |
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| Area |
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Conference |
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| Notes |
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Approved |
no |
| Call Number |
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Serial |
416 |
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| Author |
Sobolewski, Roman; Xu, Ying; Zheng, Xuemei; Williams, Carlo; Zhang, Jin; Verevkin, Aleksandr; Chulkova, Galina; Korneev, Alexander; Lipatov, Andrey; Okunev, Oleg; Smirnov, Konstantin; Gol'tsman, Gregory N. |
| Title |
Spectral sensitivity of the NbN single-photon superconducting detector |
Type |
Journal Article |
| Year |
2002 |
Publication |
IEICE Trans. Electron. |
Abbreviated Journal |
IEICE Trans. Electron. |
| Volume |
E85-C |
Issue |
3 |
Pages |
797-802 |
| Keywords |
NbN SSPD, SNSPD |
| Abstract |
We report our studies on the spectral sensitivity of superconducting NbN thin-film single-photon detectors (SPD's) capable of GHz counting rates of visible and near-infrared photons. In particular, it has been shown that a NbN SPD is sensitive to 1.55-µm wavelength radiation and can be used for quantum communication. Our SPD's exhibit experimentally measured intrinsic quantum efficiencies from 20% at 800 nm up to 1% at 1.55-µm wavelength. The devices demonstrate picosecond response time (<100 ps, limited by our readout system) and negligibly low dark counts. Spectral dependencies of photon counting of continuous-wave, 0.4-µm to 3.5-µm radiation, and 0.63-µm, 1.33-µm, and 1.55-µm laser-pulsed radiations are presented for the single-stripe-type and meander-type devices. |
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no |
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Serial |
1531 |
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