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Investigations on Hologram Fixing Process in Sillenite Type Photorefractive Crystals

Margarita G. Miteva

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Abstract

The holograms fixing process in very well known sillenite type photorefractive crystals Bi12(Ge, Si, Ti)O20 has important implications for various applications. An effect of prolonged memory of holographic recording with no applied electric field in photorefractive Bi12TiO20 (BTO) crystals at room temperature has been reported.1,2 The effect is established for high frequency holographic grating with K = 2π/Λ ~ 3×105 cm-1, where Λ is the grating period.

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What this paper is about

The holograms fixing process in very well known sillenite type photorefractive crystals Bi12(Ge, Si, Ti)O20 has important implications for various applications. An effect of prolonged memory of holographic recording with no applied electric field in photorefractive Bi12TiO20 (BTO) crystals at room temperature has been reported.1,2 The effect is established for high frequency holographic grating with K = 2π/Λ ~ 3×105 cm-1, where Λ is the grating period.

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Available abstract

The holograms fixing process in very well known sillenite type photorefractive crystals Bi12(Ge, Si, Ti)O20 has important implications for various applications. An effect of prolonged memory of holographic recording with no applied electric field in photorefractive Bi12TiO20 (BTO) crystals at room temperature has been reported.1,2 The effect is established for high frequency holographic grating with K = 2π/Λ ~ 3×105 cm-1, where Λ is the grating period.

Key concepts: Photorefractive effect, Holography, Grating, Materials science, Electric field, Optics, Optoelectronics, Diffraction efficiency

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