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Gershenzon, E. M.; Gol'tsman, G. N. |
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Title |
Transitions of electrons between excited states of donors in germanium |
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Year |
1971 |
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JETP Lett. |
Abbreviated Journal |
JETP Lett. |
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14 |
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2 |
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63-65 |
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Keywords |
Ge, donors, excited states |
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1740 |
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Gershenzon, E. M.; Gol'tsman, G. N.; Emtsev, V. V.; Mashovets, T. V.; Ptitsyna, N. G.; Ryvkin, S. M. |
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Title |
Role of impurities of groups III and V in the formation of defects following γ irradiation of germanium |
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Journal Article |
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Year |
1971 |
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JETP Lett. |
Abbreviated Journal |
JETP Lett. |
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Volume |
14 |
Issue |
6 |
Pages |
241 |
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Ge, gamma irradiation, defects, impurities |
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1742 |
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Schubert, J.; Semenov, A.; Gol'tsman, G.; Hübers, H.-W.; Schwaab, G.; Voronov, B.; Gershenzon, E. |
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Title |
Noise temperature of an NbN hot-electron bolometric mixer at frequencies from 0.7 THz to 5.2 THz |
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Journal Article |
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Year |
1999 |
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Supercond. Sci. Technol. |
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12 |
Issue |
11 |
Pages |
748-750 |
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NbN HEB mixers |
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We report on noise temperature measurements of an NbN phonon-cooled hot-electron bolometric mixer in the terahertz frequency range. The devices were 3 nm thick films with in-plane dimensions 1.7 × 0.2 µm2 and 0.9 × 0.2 µm2 integrated in a complementary logarithmic-spiral antenna. Measurements were performed at seven frequencies ranging from 0.7 THz 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). |
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298 |
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Kawamura, J.; Tong, C.-Y. E.; Blundell, R.; Papa, D. C.; Hunter, T. R.; Patt, F.; Gol’tsman, G.; Gershenzon, E. |
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Terahertz-frequency waveguide NbN hot-electron bolometer mixer |
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2001 |
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IEEE Trans. Appl. Supercond. |
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IEEE Trans. Appl. Supercond. |
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11 |
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1 |
Pages |
952-954 |
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NbN HEB mixers |
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We have developed a low-noise waveguide heterodyne receiver for operation near 1 THz using phonon-cooled NbN hot-electron bolometers. The mixer elements are submicron-sized microbridges of 4 nm-thick NbN film fabricated on a quartz substrate. Operating at a bath temperature of 4.2 K, the double-sideband receiver noise temperature is 760 K at 1.02 THz and 1100 K at 1.26 THz. The local oscillator is provided by solid-state sources, and power measured at the source is less than 1 /spl mu/W. The intermediate frequency bandwidth exceeds 2 GHz. The receiver was used to make the first ground-based heterodyne detection of a celestial spectroscopic line above 1 THz. |
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1558-2515 |
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1546 |
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Blagosklonskaya, L. E.; Gershenzon, E. M.; Gol’tsman, G. N.; Elant’ev, A. I. |
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Title |
Effect of a strong magnetic field on the spectrum of donors in InSb |
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Year |
1978 |
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Sov. Phys. Semicond. |
Abbreviated Journal |
Sov. Phys. Semicond. |
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Volume |
11 |
Issue |
12 |
Pages |
1395-1397 |
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InSb, spectrum of donors, strong magnetic field |
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1725 |
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