Parametric resonance in superconducting micron-scale waveguides
- A. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, 194021 (Russia)
A parametric resonance due to temperature oscillations in superconducting micron-scale waveguides is considered. Oscillations of superconductor temperature are assumed to be induced by the irradiation of the waveguide with a laser beam. The laser power and parameters of the waveguide providing a possibility of parametric excitation have been calculated. It is shown that for a waveguide made of a YBa{sub 2}Cu{sub 3}O{sub 7} microstrip with resonant frequency of 10 GHz a laser with a power of about 70 W/cm{sup 2} is needed to excite oscillations. The effect can be used for the creation of high-sensitivity tuneable filters and optoelectric transformers on superconducting microstrips in the GHz range. {copyright} {ital 1997 American Institute of Physics.}
- OSTI ID:
- 530026
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 12 Vol. 81; ISSN JAPIAU; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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