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Proceedings Paper

Degree of IR laser thermal effect on high temperature superconducting samples
Author(s): Emma N. Lotkova; Sergey D. Zotov; Eugene M. Kudriavtsev; B. H. Makeev
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Paper Abstract

The temperature of the high temperature superconducting (HTSC) sample surface, T, irradiated by the c.w. IR CO-laser was measured by the pyrometric method. The YBa2Cu3O7 single crystals, YBa2Cu3O6.2, YBa2Cu3O6.9, and the Nd1.85Ce0.15CuO4 ceramic samples were studied. The experimental data were compared with the theoretical estimations. The verified values of the heat conductivity, k, were derived from this comparison. Using these k values, the T data for the case of the pulse laser irradiation obtained in our previous investigations of laser irradiation effects were refined. The results of the present work confirmed that effects of the IR laser irradiation seen in our previous works cannot be explained by pure thermal action as the degree of the IR laser thermal effects, i.e., the heating, is relatively small in that experiments, and the T values are lower than it is needed for appreciable changes in properties of the HTSC samples being under consideration.

Paper Details

Date Published: 31 March 1995
PDF: 4 pages
Proc. SPIE 2502, Gas Flow and Chemical Lasers: Tenth International Symposium, (31 March 1995); doi: 10.1117/12.204884
Show Author Affiliations
Emma N. Lotkova, P.N. Lebedev Physical Institute (Russia)
Sergey D. Zotov, P.N. Lebedev Physical Institute (Russia)
Eugene M. Kudriavtsev, P.N. Lebedev Physical Institute (Russia)
B. H. Makeev, P.N. Lebedev Physical Institute (Russia)

Published in SPIE Proceedings Vol. 2502:
Gas Flow and Chemical Lasers: Tenth International Symposium
Willy L. Bohn; Helmut Huegel, Editor(s)

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