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Resonant Frequency Modulation of High Temperature Superconductors Subjected to Optical Pulse Energy and Temperature

광학 펄스 에너지와 온도 변화에 의한 고온 초전도체의 공명 진동수 변조

  • Published : 2005.11.01

Abstract

The resonant frequency modulation of $YBa_2Cu_3O_{7-x}$ meander lines has been investigated as functions of optical pulse energy and temperature by using a network analyzer. The frequency-domain measurements are performed by controlling both the resonant frequency and the frequency width. The meander lines, configured in a microstrip geometry, are illuminated by optical pulses from an actively mode-locked Nd:YAG laser. The variation of the resonant frequency shows a quadratic dependence on the reduced optical pulse energy $P/P_c$, where $P_c$ is defined as the critical optical pulse energy at which resonance signal has disappeared. As for the dependence on temperature, the results are in good agreement with the previously reported data.

Keywords

References

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