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Author |
Boreiko, R.T.; Betz, A.L. |
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Title |
Far-infrared laser emission from deuterated ammonia |
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Journal Article |
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Year |
2002 |
Publication |
Applied Physics B: Lasers and Optics |
Abbreviated Journal |
Applied Physics B: Lasers and Optics |
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75 |
Issue |
8 |
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823-826 |
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0946-2171 |
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488 |
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Author |
Omar, A.; Anantharamaiah, K. R.; Rupen, M.; Rigby, J. |
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Title |
VLA detection of OH absorption from the elliptical galaxy NGC 1052 |
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Journal Article |
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Year |
2002 |
Publication |
Astron. Astrophys. |
Abbreviated Journal |
A&A |
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Volume |
381 |
Issue |
1 |
Pages |
L29-L32 |
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0004-6361 |
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RPLAB @ s @ |
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435 |
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Author |
Ediss, G. A.; Koller, D. |
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Title |
68.5 to 118 GHz measurements of possible infrared filter materials: black polyethylene, Zitex, and grooved and un-grooved fluorogold and HDPE |
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Miscellaneous |
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Year |
2002 |
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ALMA Memo |
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412 |
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RPLAB @ s @ |
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446 |
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Author |
Semenov, Alexei D; Gol'tsman, Gregory N; Sobolewski, Roman |
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Title |
Hot-electron effect in superconductors and its applications for radiation sensors |
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Journal Article |
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Year |
2002 |
Publication |
Superconductor Science and Technology |
Abbreviated Journal |
Supercond. Sci. Technol. |
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Volume |
15 |
Issue |
4 |
Pages |
R1-R16 |
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Keywords |
HEB, SSPD |
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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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0953-2048 |
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416 |
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Author |
Uzawa, Y.; Miki, S.; Wang, Z.; Kawakami, A.; Kroug, M.; Yagoubov, P.; Kollberg, E. |
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Title |
Performance of a quasi-optical NbN hot-electron bolometric mixer at terahertz frequencies |
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Journal Article |
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Year |
2002 |
Publication |
Superconductor Science and Technology |
Abbreviated Journal |
Supercond. Sci. Technol. |
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Volume |
15 |
Issue |
1 |
Pages |
141-145 |
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HEB, mixer |
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0953-2048 |
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no |
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RPLAB @ s @ |
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548 |
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Author |
Colombelli, R |
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Title |
FIR quantum cascade lasers at λ>20 μm and THz emitters at λ=80 μm |
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Journal Article |
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Year |
2002 |
Publication |
Phys. E: Low-dimensional Systems and Nanostructures |
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13 |
Issue |
2-4 |
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848-853 |
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1386-9477 |
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no |
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483 |
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Author |
Gisin, Nicolas; Ribordy, Grégoire; Tittel, Wolfgang; Zbinden, Hugo |
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Title |
Quantum cryptography |
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Journal Article |
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Year |
2002 |
Publication |
Reviews of Modern Physics |
Abbreviated Journal |
Rev. Mod. Phys. |
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Volume |
74 |
Issue |
1 |
Pages |
145-195 |
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0034-6861 |
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506 |
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Author |
Shytov, A. V.; Levitov, L. S.; Beenakker, C. W. J. |
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Title |
Electromechanical noise in a diffusive conductor |
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Journal Article |
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Year |
2002 |
Publication |
Phys. Rev. Lett. |
Abbreviated Journal |
Phys. Rev. Lett. |
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Volume |
88 |
Issue |
22 |
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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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0031-9007 |
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RPLAB @ s @ |
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433 |
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Author |
Smolyaninov, I. I.; Zayats, A. V.; Stanishevsky, A.; Davis, C. C. |
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Optical control of photon tunneling through an array of nanometer-scale cylindrical channels |
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Journal Article |
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Year |
2002 |
Publication |
Phys. Rev. B |
Abbreviated Journal |
Phys. Rev. B |
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Volume |
66 |
Issue |
20 |
Pages |
205414_1-205414_5 |
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Keywords |
optical mixing |
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ISSN |
1098-0121 |
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499 |
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Verevkin, A.; Zhang, J.; Sobolewski, Roman; Lipatov, A.; Okunev, O.; Chulkova, G.; Korneev, A.; Smirnov, K.; Gol'tsman, G. N.; Semenov, A. |
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Title |
Detection efficiency of large-active-area NbN single-photon superconducting detectors in the ultraviolet to near-infrared range |
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Journal Article |
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Year |
2002 |
Publication |
Appl. Phys. Lett. |
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Volume |
80 |
Issue |
25 |
Pages |
4687-4689 |
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Keywords |
NbN SSPD, SNSPD, QE |
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Abstract |
We report our studies on spectral sensitivity of meander-type, superconducting NbN thin-film single-photon detectors (SPDs), characterized by GHz counting rates of visible and near-infrared photons and negligible dark counts. Our SPDs exhibit experimentally determined quantum efficiencies ranging from ∼0.2% at the 1.55 μm wavelength to ∼70% at 0.4 μm. Spectral dependences of the detection efficiency (DE) at the 0.4 to 3.0-μm-wavelength range are presented. The exponential character of the DE dependence on wavelength, as well as its dependence versus bias current, is qualitatively explained in terms of superconducting fluctuations in our ultrathin, submicron-width superconducting stripes. The DE values of large-active-area NbN SPDs in the visible range are high enough for modern quantum communications. |
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331 |
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