| Records |
| Author |
Gousev, Yu. P.; Semenov, A. D.; Pechen, E. V.; Varlashkin, A. V.; Nebosis, R. S.; Renk K. F |
| Title |
Coupling of terahertz radiation to a high-Т(с) superconducting hot electron bolometer mixer |
Type |
Journal Article |
| Year |
1996 |
Publication |
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Abbreviated Journal  |
Appl. Phys. Lett., |
| Volume |
69 |
Issue |
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Pages |
691-693 |
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| Abstract |
We report on efficient coupling of THz radiation to a high-T(c) superconducting hot electron bolometer that is suitable for heterodyne detection. Our quasioptical system consisted of a planar self-complementary spiral antenna on a dielectric substrate clamped to an extended hyperhemispherical lens. The antenna was integrated into a co-planar line for broadband intermediate frequency matching. Measurements in the homodyne regime at a frequency of 2.5 THz showed a radiation pattern with a beam width of 1° and a coupling efficiency of 0.1. We measured, at an intermediate frequency of 1.5 GHz, an output noise temperature of'160 K and estimated for the device, operated in the heterodyne regime, a system noise temperature of 30 000 K. We also discuss possibilities of significant improvement of the sensitivity. |
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no |
| Call Number |
RPLAB @ atomics90 @ |
Serial |
958 |
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| Author |
Karasik, B. S.; Elantiev, A. I. |
| Title |
Noise temperature limit of a superconducting hot-electron bolometer mixer |
Type |
Journal Article |
| Year |
1996 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
| Volume |
68 |
Issue |
6 |
Pages |
853-855 |
| Keywords |
HEB mixer noise temperature, Johnson noise, thermal fluctuation noise, noise bandwidth |
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| ISSN |
0003-6951 |
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no |
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260 |
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| Author |
Karasik, B. S.; Il'in, K. S.; Pechen, E. V.; Krasnosvobodtsev, S. I. |
| Title |
Diffusion cooling mechanism in a hot-electron NbC microbolometer mixer |
Type |
Journal Article |
| Year |
1996 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
| Volume |
68 |
Issue |
16 |
Pages |
2285-2287 |
| Keywords |
HEB mixer, diffusion cooling channel, diffusion channel |
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0003-6951 |
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262 |
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Semenov, A. D.; Gousev, Y. P.; Nebosis, R. S.; Renk, K. F.; Yagoubov, P.; Voronov, B. M.; Gol’tsman, G. N.; Syomash, V. D.; Gershenzon, E. M. |
| Title |
Heterodyne detection of THz radiation with a superconducting hot‐electron bolometer mixer |
Type |
Journal Article |
| Year |
1996 |
Publication |
Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
| Volume |
69 |
Issue |
2 |
Pages |
260-262 |
| Keywords |
NbN HEB mixers |
| Abstract |
We report on the use of a superconducting hot‐electron bolometer mixer for heterodyne detection of terahertz radiation. Radiation with a wavelength of 119 μm was coupled to the mixer, a NbN microbridge, by a hybrid quasioptical antenna consisting of an extended hyperhemispherical lens and a planar logarithmic spiral antenna. We found, at an intermediate frequency of 1.5 GHz, a system double side band noise temperature of ≊40 000 K and conversion losses of 25 dB. We also discuss the possibilities of further improvement of the mixer performance. |
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0003-6951 |
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no |
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Serial |
1610 |
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| Author |
Trifonov, V. A.; Karasik, B. S.; Zorin, M. A.; Gol’tsman, G. N.; Gershenzon, E. M.; Lindgren, M.; Danerud, M.; Winkler, D. |
| Title |
9.6 μm wavelength mixing in a patterned YBa2Cu3O7‐δ thin film |
Type |
Journal Article |
| Year |
1996 |
Publication |
Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
| Volume |
68 |
Issue |
10 |
Pages |
1418-1420 |
| Keywords |
YBCO HTS HEB mixers |
| Abstract |
Hot‐electron bolometric (HEB) mixing of 9.6 μm infrared radiation from two lasers in high‐quality YBa2Cu3O7−δ (YBCO) patterned thin film has been demonstrated. A heterodyne measurement showed an intermediate frequency (IF) bandwidth of 18 GHz, limited by our measurement system. An intrinsic limit of 100 GHz is predicted. Between 0.1 and 1 GHz intermediate frequency, temperature fluctuations with an equivalent output noise temperature Tfl up to ∼150 K, contributed to the mixer noise while Johnson noise dominated above 1 GHz. The overall conversion loss at 77 K at low intermediate frequencies was measured to be ∼25 dB, of which 13 dB was due to the coupling loss. The HEB mixer is very promising for use in heterodyne receivers within the whole infrared range. |
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0003-6951 |
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no |
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1613 |
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| Author |
Dickert, F. L.; Haunschild, A.; Kuschow, V.; Reif, M.; Stathopulos, H. |
| Title |
Mass-sensitive detection of solvent vapors. Mechanistic studies on host-guest sensor principles by FT-IR spectroscopy and BET adsorption analysis |
Type |
Journal Article |
| Year |
1996 |
Publication |
Analytical Chemistry |
Abbreviated Journal |
Anal. Chem. |
| Volume |
68 |
Issue |
6 |
Pages |
1058-1061 |
| Keywords |
supramolecular recognition, quartz crystal microbalance, QCM, surface acoustic wave, SAW, mass-sensitive sensor, detector, calixarenes, MM3 force field, Brunauer, Emmett and Teller theory, BET |
| Abstract |
Chemical sensors, based on highly mass sensitive QMB or SAW devices, coated with thin layers of calixarenes, enable the detection of organic solvent vapours, especially halogenated or aromatic hydrocarbons, down to a few ppm. Force field calculations allow the tailoring of these sensor materials seeing that the predicted interaction energies between the host molecules and a large variety of analytes are linearly correlated to the measured sensor effects. These correlations and also BET adsorption analysis prove the analyte recognition properties of these calixarene coatings to be mainly based on host/guest inclusion principles. |
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0003-2700 |
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no |
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562 |
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| Author |
van de Stadt, H. |
| Title |
An improved 1 THz waveguide mixer |
Type |
Conference Article |
| Year |
1996 |
Publication |
Proc. 7th Int. Symp. Space Terahertz Technol. |
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Pages |
536 |
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Charlottesville, Virginia, USA |
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Probably other authors exist. |
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no |
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263 |
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| Author |
Belitsky, V. Yu.; Kollberg, E. L. |
| Title |
Tuning circuit for NbN SIS mixer |
Type |
Conference Article |
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1996 |
Publication |
Proc. 7th Int. Symp. Space Terahertz Technol. |
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234 |
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Charlottesville, Virginia, USA |
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264 |
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| Author |
Betz, A. L.; Borejko, R. T. |
| Title |
A practical Schottky mixer for 5 THz |
Type |
Conference Article |
| Year |
1996 |
Publication |
Proc. 7th Int. Symp. Space Terahertz Technol. |
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Pages |
503 |
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269 |
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| Author |
Carlstrom, John E.; Jonas Zmuidzinas |
| Title |
Millimeter and Submillimeter Techniques |
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Book Chapter |
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1996 |
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848 |
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Oxford University Press Inc |
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New York |
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Review of radio science 1993–1996 |
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34 |
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Published for the International Union of Radio Science |
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268 |
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Hesler, J. L.; Hall, W. R.; Crowe, T. W.; Weikle, R. M.; Bradley, R. F.; Pan, Shing-Kuo |
| Title |
Submm wavelenght waveguide mixers using planar Schottky barier diods |
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Conference Article |
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1996 |
Publication |
Proc. 7th Int. Symp. Space Terahertz Technol. |
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462 |
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270 |
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Tong, C. Y. E.; Blundell, R.; Bumble, B.; Stern, J. A.; LeDuc, H. G. |
| Title |
Sub-Millimeter distributed quasiparticle receiver employing a non-Linear transmission line |
Type |
Conference Article |
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1996 |
Publication |
Proc. 7th Int. Symp. Space Terahertz Technol. |
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47 |
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271 |
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Tong, C. Y. E.; Blundell, R.; Paine, S.; Papa, D. C.; Kawamura, J.; Stern, J.; LeDuc, H. G. |
| Title |
Design and characterization of a 250-350 GHz fixed-tuned superconductor-insulator-insulator receiver |
Type |
Journal Article |
| Year |
1996 |
Publication |
IEEE Trans. Microw. Theory Techn. |
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44 |
Issue |
9 |
Pages |
1548-1556 |
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273 |
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| Author |
Tinkham, Mikhael |
| Title |
Introduction to superconductivity |
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Book Whole |
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1996 |
Publication |
McGraw-Hill |
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superconductivity, BCS, GL |
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USA |
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2 |
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896 |
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Currie, N. C.; Demma, F. J.; Ferris Jr., D. D.; Kwasowsky, B. R.; McMillan, R. W.; Wicks, M. C. |
| Title |
Infrared and millimeter-wave sensors for military special operations and law enforcement applications |
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Journal Article |
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1996 |
Publication |
Int. J. Infrared and Millimeter Waves |
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17 |
Issue |
7 |
Pages |
1117-1138 |
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HgCdTe |
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0195-9271 |
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no |
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466 |
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