Optically Induced Variable Light Deflection By Anisotropic Bragg Diffraction In Photorefractive KNbO[sub]3[/sub]

E. Voit; P. Gunter

doi:10.1117/12.937073

10 July 1987 Optically Induced Variable Light Deflection By Anisotropic Bragg Diffraction In Photorefractive KNbO₃

E. Voit, P. Gunter

Proceedings Volume 0701, 1986 European Conf on Optics, Optical Systems and Applications; (1987) https://doi.org/10.1117/12.937073
Event: 1986 International European Conference on Optics, Optical Systems, and Applications, 1986, Florence, Italy

Abstract

Photoinduced anisotropic Bragg diffraction in photorefractive KNb03 using the electro-optic coefficient r42=380pm/V has been studied. It has been demonstrated that, by using a noncritical configuration, a He-Ne laser beam with fixed incidence angle can be deflected within a range of 5.67 deg by changing the wavelength λ0 of the Ar+ laser beams used for recording the photorefractive grating (wavelength tuning range: 457.9nm < λ0 < 514.5nm). It is shown that for the reported interaction angles between recording and diffracted beams, the Bragg condition is noncritically fulfilled for the whole deflection range without requiring any beam tilting.

Citation Download Citation

E. Voit and P. Gunter "Optically Induced Variable Light Deflection By Anisotropic Bragg Diffraction In Photorefractive KNbO₃", Proc. SPIE 0701, 1986 European Conf on Optics, Optical Systems and Applications, (10 July 1987); https://doi.org/10.1117/12.937073

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