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Optics Letters

Optics Letters


  • Vol. 11, Iss. 5 — May. 1, 1986
  • pp: 309–311

Optically induced variable light deflection by anisotropic Bragg diffraction in photorefractive KNbO3

E. Voit, C. Zaldo, and P. Günter  »View Author Affiliations

Optics Letters, Vol. 11, Issue 5, pp. 309-311 (1986)

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Photoinduced anisotropic Bragg diffraction in photorefractive coefficient KNbO3 using the electro-optic r42 = 380 pm/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 λr of the Ar+ laser beams used for recording the photorefractive grating (wavelength tuning range; 457.9 nm < λr < 514.5 nm). 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 any beam tilting being required.

© 1986 Optical Society of America

Original Manuscript: December 9, 1985
Manuscript Accepted: February 13, 1986
Published: May 1, 1986

E. Voit, C. Zaldo, and P. Günter, "Optically induced variable light deflection by anisotropic Bragg diffraction in photorefractive KNbO3," Opt. Lett. 11, 309-311 (1986)

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