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Author Prober, D. E.
Title Superconducting terahertz mixer using a transition-edge microbolometer Type Journal Article
Year 1993 Publication Appl. Phys. Lett. Abbreviated Journal Appl. Phys. Lett.
Volume 62 Issue 17 Pages 2119-2121
Keywords HEB mixer, NbN, TES
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Notes Recommended by Klapwijk Approved no
Call Number Serial (up) 244
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Author Maas, S.
Title SIS mixers Type Conference Article
Year 1993 Publication Artech House Abbreviated Journal
Volume Issue Pages 338-340
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Publisher Place of Publication Boston, MA Editor
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Notes Approved no
Call Number Serial (up) 249
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Author Tonguz, O.K.; Hwang, B.
Title Noise performance of AFC loops in optical heterodyne receivers Type Conference Article
Year 1993 Publication Proc. Lasers and Electro-Optics Society Annual Meeting Abbreviated Journal Proc. LEOS
Volume Issue Pages 361-362
Keywords optical mixing
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Publisher Place of Publication San Jose, CA, USA Editor
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Notes Approved no
Call Number Serial (up) 510
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Author Prober, D. E.
Title Superconducting terahertz mixer using a transition-edge microbolometer Type Journal Article
Year 1993 Publication Department of Applied Physics and Physics, Yale University, New Haven, Connecticut 06520-2157 Abbreviated Journal
Volume Issue Pages 2119-2121
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Abstract We present a new device concept for a mixer element for THz frequencies. This uses a superconducting transition-edge microbridge biased at the center of its superconducting transition near 4.2 K. It is fed from an antenna or waveguide structure. Power from a local oscillator and a rf signal produce a temperature and resulting resistance variation at the difference frequency. The new aspect is the use of a very short bridge in which rapid ( < 0.1 ns) outdiffision of hot electrons occurs. This gives large intermediate frequency (if) response. The mixer offers ~4 GHz if bandwidth, z 80 Cl rf resistive impedance, good match to the if amplifier, and requires only l-20 nW of local oscillator power. The upper rf frequency is determined by antenna or waveguide properties. Predicted mixer conversion efficiency is l/8, and predicted double-sideband receiver noise temperatures are 260 and 90 K for transition widths of 0.1 and 0.5 T, respectively.
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Notes Approved no
Call Number RPLAB @ atomics90 @ Serial (up) 955
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Author Ekstrom, H.; Karasik, B.; Weikle, R.; Yngvesson, K. S.; Gol’tsman, G.; Kollberg, E.; Gershenzon, E.
Title Mixers using superconducting Nb films in the resistive state Type Conference Article
Year 1993 Publication 23rd European Microwave Conf. Abbreviated Journal 23rd European Microwave Conf.
Volume Issue Pages 787-789
Keywords Nb HEB mixers
Abstract The mixing of 20 GHz radiation in a Nb superconducting film in the resistive state was studied. The experiment gave evidence of electron-heating to be the origin of the non-linear phenomenon. The requirements on the operation mode and on the film parameters in order to obtain small conversion losses or even gain are determined. Our measurements indicate a conversion loss of about 6-8 dB. The hot-electron bolometer is considered to be very promising for use in heterodyne receivers in a wide frequency range from microwaves to terahertz frequencies.
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Notes Approved no
Call Number Serial (up) 1651
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