Abstract
A superconducting thin-film nanoswitch for the subterahertz frequency range has been proposed, developed, fabricated, and tested. The switch makes it possible to modulate the microwave signal or switch it between two branches of a circuit with low losses and high speed. The switch can be naturally integrated with superconducting high-sensitive detectors. Its application makes it possible to avoid the use of massive slow mechanical modulators and to improve the measurement accuracy in decisive astrophysical experiments such as the investigation of the anisotropy of the cosmic microwave background.
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References
G. Yassin, in Proceedings of 15th International Symposium on Space Terahertz Technology (Northampton, Mass., 2004).
P. Oxley, Proc. SPIE 5543, 320 (2004).
B. G. Keating, Proc. SPIE 4843, 284 (2003).
K. S. Il’in, M. Lindgren, M. Currie, et al., Appl. Phys. Lett. 76, 2752 (2000).
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Original Russian Text © L. Kuzmin, M. Tarasov, É. Otto, A. Kalabukhov, G. Yassin, P. Grimes, P. Mauskopf, 2007, published in Pis’ma v Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2007, Vol. 86, No. 4, pp. 307–310.