Abstract.
The experimental study of the in-plain vibration of the speckle pattern in photorefractive GaP and BTO crystals using the polarization self-modulation effect are presented. The simple model based on the propagation of the Gaussian beam through the crystal with recorded space-charge field is proposed to explain main features of the experiment. It is shown that these results allow designing a linear sensor of the speckle-pattern displacement in an effective way. The optical system is very simple and does not include any reference or readout beam. The sensitivity of this system is the same as that of an interferometer.
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Received: 27 November 1998 / Revised version: 26 January 1999 / Published online: 12 April 1999
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Kamshilin, A., Paivasaari, K., Nazhestkina, N. et al. Adaptive correlation filters for speckle patterns in photorefractive crystals . Appl Phys B 68, 1031–1038 (1999). https://doi.org/10.1007/s003400050742
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DOI: https://doi.org/10.1007/s003400050742