| Records |
| 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. |
Abbreviated Journal |
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| Volume |
44 |
Issue |
9 |
Pages |
1548-1556 |
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no |
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Serial |
273 |
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| Author |
Tinkham, Mikhael |
| Title |
Introduction to superconductivity |
Type |
Book Whole |
| Year |
1996 |
Publication |
McGraw-Hill |
Abbreviated Journal |
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Issue |
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Pages |
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| Keywords |
superconductivity, BCS, GL |
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Place of Publication |
USA |
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2 |
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no |
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Serial |
896 |
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| Author |
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 |
Type |
Journal Article |
| Year |
1996 |
Publication |
Int. J. Infrared and Millimeter Waves |
Abbreviated Journal |
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| Volume |
17 |
Issue |
7 |
Pages |
1117-1138 |
| Keywords |
HgCdTe |
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Series Issue |
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Edition |
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| ISSN |
0195-9271 |
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Approved |
no |
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Serial |
466 |
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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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Serial |
562 |
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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. |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
601-613 |
| Keywords |
HEB mixer, model, conversion gain, noise temperature, impedance, 2.5 THz |
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Place of Publication |
Charlottesville, Virginia, USA |
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no |
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Serial |
605 |
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- |
| Title |
ГОСТ Р 15.011-96. Патентные исследования. Содержание и порядок проведения |
Type |
Book Whole |
| Year |
1996 |
Publication |
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| Keywords |
gost, patents, detproj |
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Approved |
no |
| Call Number |
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Serial |
865 |
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ГОСТ Р 50995.3.1-96. Технологическое обеспечение создания продукции. Технологическая подготовка производства |
Type |
Book Whole |
| Year |
1996 |
Publication |
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Abbreviated Journal |
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Issue |
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Pages |
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| Keywords |
gost, detproj |
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no |
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Serial |
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. |
| Volume |
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Issue |
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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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Approved |
no |
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Serial |
945 |
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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. |
| Address |
Noordwijk, Netherlands |
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Editor |
Rolfe, E. J.; Pilbratt, G. |
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Conference |
Submillimetre and Far-Infrared Space Instrumentation |
| Notes |
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Approved |
no |
| Call Number |
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Serial |
1606 |
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| Author |
Kawamura, J.; Blundell, R.; Tong, C.‐yu E.; Gol’tsman, G.; Gershenzon, E.; Voronov, B. |
| Title |
Performance of NbN lattice‐cooled hot‐electron bolometric mixers |
Type |
Journal Article |
| Year |
1996 |
Publication |
J. Appl. Phys. |
Abbreviated Journal |
J. Appl. Phys. |
| Volume |
80 |
Issue |
7 |
Pages |
4232-4234 |
| Keywords |
NbN HEB mixers |
| Abstract |
The heterodyne performance of lattice‐cooled hot‐electron bolometric mixers is measured at 200 GHz. Superconducting thin‐film niobium nitride strips with ∼5 nm thickness are used as waveguide mixer elements. A double‐sideband receiver noise temperature of 750 K at 244 GHz is measured at an intermediate frequency centered at 1.5 GHz with 500 MHz bandwidth and with 4.2 K device temperature. The instantaneous bandwidth for this mixer is 1.6 GHz. The local oscillator power required by the mixer is about 0.5 μW. The mixer is linear to within 1 dB up to an input power level 6 dB below the local oscillator power. A receiver incorporating a hot‐electron bolometric mixer was used to detect molecular line emission in a laboratory gascell. This experiment unambiguously confirms that the receiver noise temperature determined from Y‐factor measurements reflects the true heterodyne sensitivity. |
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0021-8979 |
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no |
| Call Number |
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Serial |
1607 |
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