Residual absorption of high-temperature superconductors at THz frequencies

Philipp Keller; Harry S. Barowski; Martin Prenninger; Evgeny V. Pechen; Karl F. Renk

doi:10.1117/12.241770

10 June 1996 Residual absorption of high-temperature superconductors at THz frequencies

Philipp Keller, Harry S. Barowski, Martin Prenninger, Evgeny V. Pechen, Karl F. Renk

Proceedings Volume 2696, Spectroscopic Studies of Superconductors; (1996) https://doi.org/10.1117/12.241770
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

We report on a study of the residual absorption of high temperature superconductors (HTS) at THz frequencies. Using transmission Fabry-Perot interferometry, we determined both, real and imaginary part of the conductivity. We especially studied YBCO thin films. We found, that the dynamical conductivity varied strongly from sample to sample. As a main result we find, that the absorptivity increases at frequencies above 1 THz much weaker than quadratically, i.e. the (omega) ² behavior of the absorptivity at microwave frequencies is not continued in the THz frequency range.

Citation Download Citation

Philipp Keller, Harry S. Barowski, Martin Prenninger, Evgeny V. Pechen, and Karl F. Renk "Residual absorption of high-temperature superconductors at THz frequencies", Proc. SPIE 2696, Spectroscopic Studies of Superconductors, (10 June 1996); https://doi.org/10.1117/12.241770

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