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Near-infrared photorefractivity in Cr-doped potassium sodium strontium barium niobate single crystal

  • Pyroelectric And Ferroelectric Oxides
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Abstract

We report on the photorefractive properties of a Cr-doped (K1−x Na x )2A−2 (Sr y Ba1−y )2−A Nb10O30 (x=0.586, y=0.659, A=1.12) single crystal in the near-infrared spectrum. The sample exhibits photorefractivity for wavelengths up to at least 840 nm where the steady-state two-beam coupling gain is found to be larger than 2 cm−1. Photorefractive gain and decay rate are measured as a function of wavelength, grating spacing and intensity. The wavelength dependence of gain fluctuations in two-beam coupling are also measured.

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Author notes

  1. Y. Tomita

    Present address: Electronics Engineering Dept., University of Electro-Communications, 1-5-1 Chofugaoko, Chofu, 182, Tokyo, Japan

Authors and Affiliations

  1. Canon Inc., Research Centre, 5-1 Morinosato-Wakamiya, 243-01, Atsugi, Japan

    J. Bergquist, Y. Tomita & M. Shibata

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Bergquist, J., Tomita, Y. & Shibata, M. Near-infrared photorefractivity in Cr-doped potassium sodium strontium barium niobate single crystal. Appl. Phys. A 55, 61–64 (1992). https://doi.org/10.1007/BF00324603

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  • DOI: https://doi.org/10.1007/BF00324603

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