Records |
Author |
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 |
Year |
1996 |
Publication |
Proc. 7th Int. Symp. Space Terahertz Technol. |
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47 |
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271 |
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Author |
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 |
Year |
1996 |
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McGraw-Hill |
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superconductivity, BCS, GL |
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USA |
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896 |
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Author |
Nebosis, R. S.; Semenov, A. D.; Gousev, Yu. P.; Renk, K. F. |
Title |
Rigorous analysis of a superconducting hot-electron bolometer mixer: theory and comparision with experiment |
Type |
Conference Article |
Year |
1996 |
Publication |
Proc. 7th Int. Symp. Space Terahertz Technol. |
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Pages |
601-613 |
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HEB mixer, model, conversion gain, noise temperature, impedance, 2.5 THz |
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Charlottesville, Virginia, USA |
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605 |
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- |
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ГОСТ Р 15.011-96. Патентные исследования. Содержание и порядок проведения |
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1996 |
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gost, patents, detproj |
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865 |
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Title |
ГОСТ Р 50995.3.1-96. Технологическое обеспечение создания продукции. Технологическая подготовка производства |
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Book Whole |
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1996 |
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gost, detproj |
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874 |
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Author |
Kawamura, J.; Blundell, R.; Tong, C.-Y. E.; Golts'man, G.; Gershenzon, E.; Voronov B. |
Title |
Superconductive NbN hot-electron bolometric mixer performance at 250 GHz |
Type |
Conference Article |
Year |
1996 |
Publication |
Proc. 7th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 7th Int. Symp. Space Terahertz Technol. |
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Pages |
331-336 |
Keywords |
NbN HEB mixers |
Abstract |
Thin film NbN (<40 A) strips are used as waveguide mixer elements. The electron cooling mechanism for the geometry is the electron-phonon interaction. We report a receiver noise temperature of 750 K at 244 GHz, with / IF = 1.5 GHz, Af= 500 MHz, and Tphysical = 4 K. The instantaneous bandwidth for this mixer is 1.6 GHz. The local oscillator (LO) power is 0.5 1.tW with 3 dB-uncertainty. The mixer is linear to 1 dB up to an input power level 6 dB below the LO power. We report the first detection of a molecular line emission using this class of mixer, and that the receiver noise temperature determined from Y-factor measurements reflects the true heterodyne sensitivity. |
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945 |
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Author |
Kerr, A. R.; Feldman, M. J.; Pan, S.-K. |
Title |
Receiver noise temperature, the quantum noise limit, and the role of the zero-point fluctuations |
Type |
Journal Article |
Year |
1996 |
Publication |
Electronics division internal report NO. 304 |
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1-10 |
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RPLAB @ atomics90 @ |
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947 |
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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 |
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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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RPLAB @ atomics90 @ |
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958 |
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Author |
Ekström, H.; Kroug, M.; Belitsky, V.; Kollberg, E.; Olsson, H.; Goltsman, G.; Gershenzon, E.; Yagoubov, P.; Voronov, B.; Yngvesson, S. |
Title |
Hot electron mixers for THz applications |
Type |
Conference Article |
Year |
1996 |
Publication |
Proc. 30th ESLAB |
Abbreviated Journal |
Proc. 30th ESLAB |
Volume |
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Issue |
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Pages |
207-210 |
Keywords |
NbN HEB mixers |
Abstract |
We have measured the noise performance of 35 A thin NbN HEB devices integrated with spiral antennas on antireflection coated silicon substrate lenses at 620 GHz. From the noise measurements we have determined a total conversion gain of the receiver of—16 dB, and an intrinsic conversion of about-10 dB. The IF bandwidth of the 35 A thick NbN devices is at least 3 GHz. The DSB receiver noise temperature is less than 1450 K. Without mismatch losses, which is possible to obtain with a shorter device, and with reduced loss from the beamsplitter, we expect to achieve a DSB receiver noise temperature of less ‘than 700 K. |
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Noordwijk, Netherlands |
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Rolfe, E. J.; Pilbratt, G. |
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Submillimetre and Far-Infrared Space Instrumentation |
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no |
Call Number |
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1606 |
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