| Records |
| Author |
Sergeev, A.; Karasik, B. S.; Ptitsina, N. G.; Chulkova, G. M.; Il'in, K. S.; Gershenzon, E. M. |
| Title |
Electron–phonon interaction in disordered conductors |
Type |
Journal Article |
| Year |
1999 |
Publication  |
Phys. Rev. B Condens. Matter |
Abbreviated Journal |
Phys. Rev. B Condens. Matter |
| Volume |
263-264 |
Issue |
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Pages |
190-192 |
| Keywords |
disordered conductors, electron-phonon interaction |
| Abstract |
The electron–phonon interaction is strongly modified in conductors with a small value of the electron mean free path (impure metals, thin films). As a result, the temperature dependencies of both the inelastic electron scattering rate and resistivity differ significantly from those for pure bulk materials. Recent complex measurements have shown that modified dependencies are well described at K by the electron interaction with transverse phonons. At helium temperatures, available data are conflicting, and cannot be described by an universal model. |
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0921-4526 |
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1765 |
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| Author |
Galin, I.; Schnitzer, C. A.; Dengler, R. J.; Quintero, O. |
| Title |
177–207 GHz radiometer front end, single–side–band measurements |
Type |
Conference Article |
| Year |
1999 |
Publication |
Proc. 10th Int. Symp. Space Terahertz Technol. |
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Pages |
70 |
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Charlottesville, Virginia, USA |
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RPLAB @ s @ schottky_Tn_1000_at_0p2THz |
Serial |
289 |
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| Author |
Marazita, St.even M.; Kai Hui; Hesler, Jeffrey L.; Bishop, William L.; Crowe, Thomas W. |
| Title |
Progress in submillimeter wavelength integrated mixer technology |
Type |
Conference Article |
| Year |
1999 |
Publication |
Proc. 10th Int. Symp. Space Terahertz Technol. |
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Issue |
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Pages |
74 |
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Charlottesville, Virginia |
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RPLAB @ s @ schottky_Tn_2970_at_0p69THz |
Serial |
290 |
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| Author |
Hesler, Jeffrey L.; Hui, Kai; Crowe, Thomas W. |
| Title |
A fixed–tuned 400 GHz subharmonic mixer using planar Schottky diods |
Type |
Conference Article |
| Year |
1999 |
Publication |
Proc. 10th Int. Symp. Space Terahertz Technol. |
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Issue |
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Pages |
95 |
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Charlottesville, Virginia, USA |
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RPLAB @ s @ schottky_Tn_1120_at_0p42THz |
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291 |
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| Author |
Merkel, H.; Khosropanah, P.; Yagubov, P.; Kollberg, E. |
| Title |
A hot spot mixer model for superconducting phonone–cooled HEB far above the quasipartical band gap |
Type |
Conference Article |
| Year |
1999 |
Publication |
Proc. 10th Int. Symp. Space Terahertz Technol. |
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Issue |
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Pages |
592-606 |
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Place of Publication |
Charlottesville, Virginia |
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292 |
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| Author |
Wyss, R. A.; Karasik, B. S.; McGrath, W. R.; Bamble, B.; LeDuc, H. |
| Title |
Noise and bandwidth measurements of diffusion–cooled Nb hot–electron bolometer mixers at frequencies above the superconductive energy gap |
Type |
Conference Article |
| Year |
1999 |
Publication |
Proc. 10th Int. Symp. Space Terahertz Technol. |
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Issue |
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Pages |
215-229 |
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Charlottesville, Virginia |
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RPLAB @ s @ qoheb_Tn_1250_at_1p1 |
Serial |
293 |
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| Author |
Ynvesson, K. Sigfrid; Kollberg, Erik L. |
| Title |
Optimum receiver noise temperature for NbN HEB mixers according to standard model |
Type |
Conference Article |
| Year |
1999 |
Publication |
Proc. 10th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
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Issue |
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Pages |
566-582 |
| Keywords |
HEB mixer model, standard model, electro-thermal feedback, self-heating parameter, heating efficiency |
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no |
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Serial |
895 |
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| Author |
Cherednichenko, S.; Ronnung, F.; Gol'tsman, G.; Gershenzon, E.; Winkler, D. |
| Title |
YBa2Cu3O7-δ hot-electron bolometer with submicron dimensions |
Type |
Conference Article |
| Year |
1999 |
Publication |
Proc. 10th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 10th Int. Symp. Space Terahertz Technol. |
| Volume |
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Issue |
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Pages |
181-189 |
| Keywords |
YBCO HTS HEB mixers |
| Abstract |
Photoresponse of YBa2Cu3O7-δ hot-electron bolometers to modulated near-infrared radiation was studied at a modulation .frequenc y var y ing from 0.2 MHz to 2 GHz. Bolometers were _fabricated from a 50 12 M thick film and had in-plane areas of 10x10 , um 2 . 2x0.2 s um', 1x0.2 p.m', and 0.5x0.2 jim. We found that nonequilibrium phonons cool down more effectively for the bolometers with smaller area. For the smallest bolometer the bolometric component in the response is 10 dB less than for the largest one. |
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no |
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Serial |
1572 |
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| Author |
Schubert, J.; Semenov, A.; Gol'tsman, G.; Hübers, H.-W.; Schwaab, G.; Voronov, B.; Gershenzon, E. |
| Title |
Noise temperature and sensitivity of a NbN hot-electron mixer at frequencies from 0.7 THz to 5.2 THz |
Type |
Conference Article |
| Year |
1999 |
Publication |
Proc. 10th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 10th Int. Symp. Space Terahertz Technol. |
| Volume |
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Issue |
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Pages |
190-199 |
| Keywords |
NbN HEB mixers |
| Abstract |
We report on noise temperature measurements of a NbN phonon-cooled hot-electron bolometric mixer at different bias regimes. The device was a 3 nm thick bridge with in-plane dimensions of 1.7 x 0.2 gm 2 integrated in a complementary logarithmic spiral antenna. Measurements were performed at frequencies ranging from 0.7 THz up to 5.2 THz. The measured DSB noise temperatures are 1500 K (0.7 THz), 2200 K (1.4 THz), 2600 K (1.6 THz), 2900 K (2.5 THz), 4000 K (3.1 THz) 5600 K (4.3 THz) and 8800 K (5.2 THz). Two bias regimes are possible in order to achieve low noise temperatures. But only one of them yields sensitivity fluctuations close to the theoretical limit. |
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no |
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Serial |
1573 |
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| Author |
Gerecht, E.; Musante, C. F.; Jian, H.; Zhuang, Y.; Yngvesson, K. S.; Dickinson, J.; Goyette, T.; Waldman, J.; Yagoubov, P. A.; Gol'tsman, G. N.; Voronov, B. M.; Gershenzon, E. M. |
| Title |
Improved characteristics of NbN HEB mixers integrated with log-periodic antennas |
Type |
Conference Article |
| Year |
1999 |
Publication |
Proc. 10th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 10th Int. Symp. Space Terahertz Technol. |
| Volume |
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Issue |
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Pages |
200-207 |
| Keywords |
NbN HEB mixers |
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no |
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1574 |
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