Quasioptical Josephson direct detectors for mm-wave spectrum analysis

M. A. Tarasov

doi:10.1117/12.2303181

1 January 1994 Quasioptical Josephson direct detectors for mm-wave spectrum analysis

M. A. Tarasov

Proceedings Volume 2250, International Conference on Millimeter and Submillimeter Waves and Applications 1994; 22504K (1994) https://doi.org/10.1117/12.2303181
Event: Millimeter and Submillimeter Waves and Applications: International Conference, 1994, San Diego, CA, United States

Abstract

Josephson detector in the selective response mode is a promising device for wideband sensitive quick spectrum analysis. It allows to detect spectral lines with resolution of the order 1 GHz. The specific feature of such mode is that it is sensitive only to the narrow spectral lines and the wideband radiation does not make contribution into the output signal. Further processing by Hilbert transform method allows to plot spectrum of ncoming signal. Th1/2 ultimate temperature of selective Josephson detector, according to should be TN=2Tr T=15K at helium temperatures, spectral resolution for 50 junctions array of the order of 10 MHz and the sensitivity of 1 10-15W. The bandwidth of the device without duplicated response at subharmonics and harmonics equals to octave.

Citation Download Citation

M. A. Tarasov "Quasioptical Josephson direct detectors for mm-wave spectrum analysis", Proc. SPIE 2250, International Conference on Millimeter and Submillimeter Waves and Applications 1994, 22504K (1 January 1994); https://doi.org/10.1117/12.2303181

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