Photochromatic and other optical effects in HTSC films

Sergei I. Tiutiunnikov; Valerii N. Shaliapin; N. I. Balalykin; N. Scintee

doi:10.1117/12.266547

4 February 1997 Photochromatic and other optical effects in HTSC films

Sergei I. Tiutiunnikov, Valerii N. Shaliapin, N. I. Balalykin, N. Scintee

Proceedings Volume 2967, Optical Inorganic Dielectric Materials and Devices; (1997) https://doi.org/10.1117/12.266547
Event: International Conference on Advanced Optical Materials and Devices, 1996, Riga, Latvia

Abstract

The measurement results of transmission spectra through super-conducting films are given. Used were: YBCO(123) - T_c equals 77 K; BSCCO(2212) - T_c equals 80 K; TBCCO - T_c equals 87 K, in a light energy range E equals 1.4 divided by 3.2 eV and T equals 5 divided by 300 K. The YBCO transmission spectra present an anomaly at T less than 70 K, E equals 1.9 eV. All HTSC films have a maximum of the absorption band at E approximately equals 2 eV. The photochromatic effect (light-induced photo-absorption) was observed in all films. The quantity of this effect depends on the type of the sample and critical temperatures (T_c). Remnant optic radiation was detected after film light irradiation.

Citation Download Citation

Sergei I. Tiutiunnikov, Valerii N. Shaliapin, N. I. Balalykin, and N. Scintee "Photochromatic and other optical effects in HTSC films", Proc. SPIE 2967, Optical Inorganic Dielectric Materials and Devices, (4 February 1997); https://doi.org/10.1117/12.266547

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