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Merkel, H.; Khosropanah, P.; Yagubov, P.; Kollberg, E. |
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A hot spot mixer model for superconducting phonone–cooled HEB far above the quasipartical band gap |
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1999 |
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Proc. 10th Int. Symp. Space Terahertz Technol. |
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592-606 |
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Charlottesville, Virginia |
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292 |
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Marazita, St.even M.; Kai Hui; Hesler, Jeffrey L.; Bishop, William L.; Crowe, Thomas W. |
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Title |
Progress in submillimeter wavelength integrated mixer technology |
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1999 |
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Proc. 10th Int. Symp. Space Terahertz Technol. |
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74 |
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Charlottesville, Virginia |
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RPLAB @ s @ schottky_Tn_2970_at_0p69THz |
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290 |
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Author |
Il'in, K. S.; Gol'tsman, G. N.; Voronov, B. M.; Sobolewski, Roman |
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Title |
Characterization of the electron energy relaxation process in NbN hot-electron devices |
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Conference Article |
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Year |
1999 |
Publication |
Proc. 10th Int. Symp. Space Terahertz Technol. |
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Proc. 10th Int. Symp. Space Terahertz Technol. |
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390-397 |
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HEB mixers, SSPD, SNSPD, NbN films, Nb films |
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We report on transient measurements of electron energy relaxation in NbN films with 300-fs time resolution. Using an electro-optic sampling technique, we have studied the photoresponse of 3.5-nm-thick NbN films deposited on sapphire substrates and exposed to 100-fs-wide optical pulses. Our experimental data analysis was based on the two-temperature model and has shown that in our films at the superconducting transition 10.5 K the inelastic electron-phonon scattering time was about (111}+-__.2) ps. This response time indicated that the maximum intermediate-frequency band of a NbN hot-electron phonon-cooled mixer should reach (16+41-3) GHz if one eliminates the bolometric phonon-heating effect. We have suggested several ways to increase the effectiveness of phonon cooling to achieve the above intrinsic value of the NbN mixer bandwidth. |
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1576 |
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Hesler, Jeffrey L.; Hui, Kai; Crowe, Thomas W. |
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A fixed–tuned 400 GHz subharmonic mixer using planar Schottky diods |
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1999 |
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Proc. 10th Int. Symp. Space Terahertz Technol. |
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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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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. |
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Title |
Improved characteristics of NbN HEB mixers integrated with log-periodic antennas |
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Conference Article |
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1999 |
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Proc. 10th Int. Symp. Space Terahertz Technol. |
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Proc. 10th Int. Symp. Space Terahertz Technol. |
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200-207 |
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NbN HEB mixers |
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1574 |
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