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Yagoubov, P.; Kroug, M.; Merkel, H.; Kollberg, E.; Schubert, J.; Hubers, H. W.; Svechnikov, S.; Voronov, B.; Gol'tsman, G.; Wang, Z. |
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Title |
Hot electron bolometric mixers based on NbN films deposited on MgO substrates |
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Conference Article |
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1999 |
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Inst. Phys. Conf. Ser. |
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Inst. Phys. Conf. Ser. |
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167 |
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687-690 |
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Barcelona, Spain |
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4th Europ. Conf. on Appl. Superconductivity, Inst. Phys. Conf. Ser. |
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297 |
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Antipov, S. V.; Svechnikov, S. I.; Smirnov, K. V.; Vakhtomin, Y. B.; Finkel, M. I.; Goltsman, G. N.; Gershenzon, E. M. |
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Title |
Noise temperature of quasioptical NbN hot electron bolometer mixers at 900 GHz |
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Journal Article |
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Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
2001 |
Publication |
Physics of Vibrations |
Abbreviated Journal |
Physics of Vibrations |
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Volume |
9 |
Issue |
4 |
Pages |
242-245 |
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Keywords |
NbN HEB mixers |
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1069-1227 |
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1550 |
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Svechnikov, S. I.; Antipov, S. V.; Vakhtomin, Y. B.; Goltsman, G. N.; Gershenzon, E. M.; Cherednichenko, S. I.; Kroug, M.; Kollberg, E. |
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Title |
Conversion and noise bandwidths of terahertz NbN hot-electron bolometer mixers |
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Journal Article |
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Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
2001 |
Publication |
Physics of Vibrations |
Abbreviated Journal |
Physics of Vibrations |
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9 |
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3 |
Pages |
205-210 |
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Keywords |
NbN HEB mixers |
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1069-1227 |
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1551 |
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Maslennikov, S.; Antipov, S.; Shishkov, A.; Svechnikov, S.; Voronov, B.; Smirnov, K.; Kaurova, N.; Drakinski, V.; Gol'tsman, G. |
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Title |
NbN HEB mixer noise temperature measurements with hot/cold load mounted inside the helium cryostat at 300 GHz |
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Conference Article |
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2002 |
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Proc. Int. Student Seminar on Microwave Appl. of Novel Physical Phenomena supported by IEEE |
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LETI |
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St.-Petersburg |
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324 |
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Vachtomin, Yu. B.; Antipov, S. V.; Kaurova, N. S.; Maslennikov, S. N.; Smirnov, K. V.; Polyakov, S. L.; Svechnikov, S. I.; Grishina, E. V.; Voronov, B. M.; Gol'tsman, G. N. |
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Title |
Noise temperature, gain bandwidth and local oscillator power of NbN phonon-cooled HEB mixer at terahertz frequenciess |
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Conference Article |
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2004 |
Publication |
Proc. 29th IRMMW / 12th THz |
Abbreviated Journal |
Proc. 29th IRMMW / 12th THz |
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329-330 |
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We present the performances of HEB mixers based on 3.5 nm thick NbN film integrated with log-periodic spiral antenna. The double side-band receiver noise temperature values are 1300 K and 3100 K at 2.5 THz and at 3.8 THz, respectively. The gain bandwidth of the mixer is 4.2 GHz and the noise bandwidth is 5 GHz. The local oscillator power is 1-3 /spl mu/W for mixers with different active area. |
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Karlsruhe, Germany |
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Karlsruhe, Germany |
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RPLAB @ s @ nt_ifb_lopow_qoheb_karlsruhe_2004 |
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354 |
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Author |
Finkel, M. I.; Maslennikov, S. N.; Vachtomin, Yu. B.; Svechnikov, S. I.; Smirnov, K. V.; Seleznev, V. A.; Korotetskaya, Yu. P.; Kaurova, N. S.; Voronov, B. M.; Gol'tsman, G. N. |
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Title |
Hot electron bolometer mixer for 20 – 40 THz frequency range |
Type |
Conference Article |
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Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
2005 |
Publication |
Proc. 16th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 16th Int. Symp. Space Terahertz Technol. |
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Volume |
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Pages |
393-397 |
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Keywords |
IR NbN HEB mixers |
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Abstract |
The developed HEB mixer was based on a 5 nm thick NbN film deposited on a GaAs substrate. The active area of the film was patterned as a 30×20 μm 2 strip and coupled with a 50 Ohm coplanar line deposited in situ. An extended hemispherical germanium lens was used to focus the LO radiation on the mixer. The responsivity of the mixer was measured in a direct detection mode in the 25÷64 THz frequency range. The noise performance of the mixer and the directivity of the receiver were investigated in a heterodyne mode. A 10.6 μm wavelength CW CO 2 laser was utilized as a local oscillator. |
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Göteborg, Sweden |
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369 |
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Author |
Jiang, L.; Li, J.; Zhang, W.; Yao, Q. J.; Lin, Z. L.; Shi, S. C.; Vachtomin, Y. B.; Antipov, S. V.; Svechnikov, S. I.; Voronov, B. M.; Goltsman, G. N. |
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Title |
Characterization of NbN HEB mixers cooled by a close-cycled 4 Kelvin refrigerator |
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Journal Article |
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Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
2005 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
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Volume |
15 |
Issue |
2 |
Pages |
511-513 |
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Keywords |
NbN HEB mixers |
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It is quite beneficial to operate superconducting hot-electron-bolometer (HEB) mixers with a close-cycled 4 Kelvin refrigerator for real applications such as astronomy and atmospheric research. In this paper, a phononcooled NbN HEB mixer (quasioptical type) is thoroughly characterized under such a cooling circumstance. The effects of mechanical vibration, electrical interference, and temperature fluctuation of a two-stage Gifford-McMahon 4 Kelvin refrigerator upon the characteristics of the phononcooled NbN HEB mixer are investigated in particular. Detailed measurement results are presented. |
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1558-2515 |
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no |
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1469 |
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Author |
Zhang, W.; Jiang, L.; Lin, Z. H.; Yao, Q. J.; Li, J.; Shi, S. C.; Svechnikov, S. I.; Vachtomin, Yu. B.; Antipov, S. V.; Voronov, B. M.; Kaurova, N. S.; Gol'tsman, G. N. |
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Title |
Development of a quasi-optical NbN superconducting HEB mixer |
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Conference Article |
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2005 |
Publication |
Proc. 16th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 16th Int. Symp. Space Terahertz Technol. |
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209-213 |
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NbN HEB mixers |
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In this paper, we report the performance of a quasi-optical NbN superconducting HEB (hot electron bolometer) mixer measured at 500 and 850GHz. The quasi-optical NbN superconducting HEB mixer is cryogenically cooled by a 4-K close-cycled refrigerator. Measured receiver noise temperature at 850 and 500GHz are 3000K and 2500K respectively with wire grid as beamsplitter, while the lowest receiver noise temperature is found to be approximately 1200K with Mylar film. The theoretical receiver noise temperature (taking into account the elliptical polarization of log-spiral antenna) is consistent with measured one. The receiver noise temperature and conversion gain with 15-μm Mylar film as the beamsplitter at 500GHz are thoroughly investigated for different LO pumping levels and dc biases. The stability of the mixer’s IF output power is also demonstrated. |
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1470 |
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Author |
Jiang, L.; Zhang, W.; Yao, Q. J.; Lin, Z. H.; Li, J.; Shi, S. C.; Svechnikov, S. I.; Vachtomin, Y. B.; Antipov, S. V.; Voronov, B. M.; Kaurova, N. S.; Gol'tsman, G. N. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Characterization of a quasi-optical NbN superconducting hot-electron bolometer mixer |
Type |
Conference Article |
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2005 |
Publication |
Proc. PIERS |
Abbreviated Journal |
Proc. PIERS |
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1 |
Issue |
5 |
Pages |
587-590 |
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Keywords |
NbN HEB mixers |
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In this paper, we report the performance of a quasi-optical NbN superconducting HEB (hot electron bolome-ter) mixer measured at 500 GHz. The quasi-optical NbN superconducting HEB mixer is cryogenically cooled bya 4-K close-cycled refrigerator. Its receiver noise temperature and conversion gain are thoroughly investigatedfor different LO pumping levels and dc biases. The lowest receiver noise temperature is found to be approxi-mately 1200 K, and reduced to about 445 K after correcting theloss of the measurement system. The stabilityof the mixer’s IF output power is also demonstrated. |
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Hangzhou, China |
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1931-7360 |
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Progress In Electromagnetics Research Symposium |
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1482 |
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Author |
Maslennikov, S. N.; Finkel, M. I.; Antipov, S. V.; Polyakov, S. L.; Zhang, W.; Ozhegov, R.; Vachtomin, Yu. B.; Svechnikov, S. I.; Smirnov, K. V.; Korotetskaya, Yu. P.; Kaurova, N. S.; Gol'tsman, G. N.; Voronov, B. M. |
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Title |
Spiral antenna coupled and directly coupled NbN HEB mixers in the frequency range from 1 to 70 THz |
Type |
Conference Article |
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Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
2006 |
Publication |
Proc. 17th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 17th Int. Symp. Space Terahertz Technol. |
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177-179 |
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directly coupled NbN HEB mixers |
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We investigate both antenna coupled and directly coupled HEB mixers at several LO frequencies within the range of 2.5 THz to 70 THz. H20 (2.5+10.7 THz), and CO2 (30 THz) gas discharge lasers are used as the local oscillators. The noise temperature of antenna coupled mixers is measured at LO frequencies of 2.5 THz, 3.8 THz, and 30 THz. The results for both antenna coupled and directly coupled mixer types are compared. The devices with in—plane dimensions of 5x5 ,um 2 are pumped by LO radiation at 10.7 THz. The directly coupled HEB demonstrates nearly flat dependence of responsivity on frequency in the range of 25+64 THz. |
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Paris, France |
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386 |
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