A Comparative study of the photorefractive effect in Bi12SiO20 Crystals

F.P. Strohkendl; P. Tayebati; R.W. Hellwarth

doi:10.1364/PRM.1987.WB1

Topical Meeting on Photorefractive Materials, Effects, and Devices
Technical Digest Series (Optica Publishing Group, 1987),
paper WB1
•https://doi.org/10.1364/PRM.1987.WB1

A Comparative study of the photorefractive effect in Bi₁₂SiO₂₀ Crystals

F.P. Strohkendl, P. Tayebati, and R.W. Hellwarth

Photorefractive Materials 1987

Los Angeles, California United States
12–14 August 1987
ISBN:

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Materials 2: BSO/BGO/BTO (WB)

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F. P. Strohkendl, P. Tayebati, and R. W. Hellwarth, "A Comparative study of the photorefractive effect in Bi12SiO20 Crystals," in Topical Meeting on Photorefractive Materials, Effects, and Devices, Technical Digest Series (Optica Publishing Group, 1987), paper WB1.

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Abstract

We perform beam-coupling and erasure experiments in four different nominally undoped Bi₁₂SiO₂₀ (BSO) crystals. We use the theory of electron-hole competition¹,² in photorefractive gratings to analyze our data. We determine the diffusion- lengths $K_{e}^{- 1}, K_{n}^{- 1}$ for electrons and holes, the ratio S of hole to electron absorption, the Debye screening wavevector k_o, the total absorption coefficient and the quantum efficiency.

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