Application of high-Tc superconductors as reflectors for far-infrared Fabry-Perot resonators

J. Schützmann

doi:10.1117/12.2297756

1 October 1991 Application of high-T_c superconductors as reflectors for far-infrared Fabry-Perot resonators

J. Schützmann

Proceedings Volume 1576, 16th International Conference on Infrared and Millimeter Waves; 157617 (1991) https://doi.org/10.1117/12.2297756
Event: 16th International Conference on Infrared and Millimeter Waves, 1991, Lausanne, Switzerland

Abstract

We report on the application of high-T_c superconductors as reflectors for far-infrared Fabry-Perot resonators. At low temperatures and frequencies smaller than the superconducting gap frequency the optical properties of YBa₂Cu₃O_7-δ are mainly determined by inductive currents. Therefore YBa₂Cu₃O_7-δ thin films on MgO, which is transparent in the far-infrared, are suitable for Fabry- Perot resonators with high peak-transmissivity. We report on a resonator with first order resonance at a frequency of 80 cm^-1, a quality factor of 55 and a peak transmissivity of 0.16.

Citation Download Citation

J. Schützmann "Application of high-T_c superconductors as reflectors for far-infrared Fabry-Perot resonators", Proc. SPIE 1576, 16th International Conference on Infrared and Millimeter Waves, 157617 (1 October 1991); https://doi.org/10.1117/12.2297756

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