| Records |
| Author |
Parker, W. H. |
| Title |
Modified heating theory of nonequilibrium superconductors |
Type |
Journal Article |
| Year |
1975 |
Publication |
Phys. Rev. B |
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| Volume |
12 |
Issue |
9 |
Pages |
3667-3672 |
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| Publisher |
American Physical Society |
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no |
| Call Number |
mht_Parker_1975 |
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221 |
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| Author |
Johnson, M. A.; Betz, A. L.; Townes, C. H. |
| Title |
10-μm Heterodyne Stellar Interferometer |
Type |
Journal Article |
| Year |
1974 |
Publication |
Phys. Rev. Lett. |
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| Volume |
33 |
Issue |
27 |
Pages |
1617-1620 |
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American Physical Society |
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no |
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228 |
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| Author |
Perrin, N.; Vanneste, C. |
| Title |
Response of superconducting films to a periodic optical irradiation |
Type |
Journal Article |
| Year |
1983 |
Publication |
Phys. Rev. B |
Abbreviated Journal |
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| Volume |
28 |
Issue |
9 |
Pages |
5150-5159 |
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sc_resp_Perrin_1983 |
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233 |
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| Author |
Shah, Jagdeep; Pinczuk, A.; Gossard, A. C.; Wiegmann, W. |
| Title |
Energy-loss rates for hot electrons and holes in GaAs quantum wells |
Type |
Journal Article |
| Year |
1985 |
Publication |
Phys. Rev. Lett. |
Abbreviated Journal |
Phys. Rev. Lett. |
| Volume |
54 |
Issue |
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Pages |
2045-2048 |
| Keywords |
2DEG, GaAs/AlGaAs, heat flow, electron-phonon, hole-phonon, carrier-phonon, interactions |
| Abstract |
We report the first direct determination of carrier-energy-loss rates in a semiconductor. These measurements provide fundamental insight into carrier-phonon interactions in semiconductors. Unexpectedly large differences are found in the energy-loss rates for electrons and holes in GaAs/AlGaAs quantum wells. This large difference results from an anomalously low electron-energy-loss rate, which we attribute to the presence of nonequilibrium optical phonons rather than the effects of reduced dimensionality or dynamic screening. |
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633 |
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| Author |
Beck, M.; Klammer, M.; Lang, S.; Leiderer, P.; Kabanov, V. V.; Gol'tsman, G. N.; Demsar, J. |
| Title |
Energy-gap dynamics of superconducting NbN thin films studied by time-resolved terahertz spectroscopy |
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Journal Article |
| Year |
2011 |
Publication |
Phys. Rev. Lett. |
Abbreviated Journal |
Phys. Rev. Lett. |
| Volume |
107 |
Issue |
17 |
Pages |
4 |
| Keywords |
NbN thin film, energy gap dynamics |
| Abstract |
Using time-domain terahertz spectroscopy we performed direct studies of the photoinduced suppression and recovery of the superconducting gap in a conventional BCS superconductor NbN. Both processes are found to be strongly temperature and excitation density dependent. The analysis of the data with the established phenomenological Rothwarf-Taylor model enabled us to determine the bare quasiparticle recombination rate, the Cooper pair-breaking rate and the electron-phonon coupling constant, λ=1.1±0.1, which is in excellent agreement with theoretical estimates. |
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RPLAB @ gujma @ |
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641 |
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