Temperature-dependent photorefractive effects in Bi4Ti3O12

Xuefeng Yue; Karsten Buse; Romano A. Rupp; Eckhard Kratzig

doi:10.1117/12.318134

17 August 1998 Temperature-dependent photorefractive effects in Bi₄Ti₃O₁₂

Xuefeng Yue, Karsten Buse, Romano A. Rupp, Eckhard Kratzig

Proceedings Volume 3554, Photorefractive Materials: Phenomena and Related Applications II; (1998) https://doi.org/10.1117/12.318134
Event: Photonics China '98, 1998, Beijing, China

Abstract

Holographic recording and beam coupling have been realized in ferroelectric Bi₄Ti₃O₁₂ crystals. Many interesting phenomena have been observed in this material, such as formation of multiple gratings, transient enhancement of diffraction efficiency during holographic recording with preillumination of the sample at low temperatures, and enhancement of diffraction during the readout process after a long recording time at room temperature. In this paper, photorefractive effects are studied in the temperature range from 80 K to 310 K. Light- induced absorption changes, dark decay of the gratings recorded with different writing beam intensities, and measurements of different activation energy levels show evidences which support the charge transport model of multiple trap centers in this material.

Citation Download Citation

Xuefeng Yue, Karsten Buse, Romano A. Rupp, and Eckhard Kratzig "Temperature-dependent photorefractive effects in Bi₄Ti₃O₁₂", Proc. SPIE 3554, Photorefractive Materials: Phenomena and Related Applications II, (17 August 1998); https://doi.org/10.1117/12.318134

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