Abstract

A considerable distinction of light-induced scattering in optically biaxial crystals comes from the fact that the principal axes of the optical indicatrix do not coincide with the crystallographic directions. The study of photorefractive scattering in Sn2P2S6 (monoclinic symmetry) revealed the particular requirements as to light polarization for excitation of parametric scattering and the polarization inhomogeneity of wide-angle scattering.

© 2008 Optical Society of America

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References

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2005

D. Haertle, A. Guarino, J. Hajfler, G. Montemezzani, and P. Günter, Opt. Express 13, 2046 (2005).

2003

I. Kedyk, A. Grabar, M. Gurzan, and Yu. Vysochanskii, Visngk Lviv Natl. Univ. Phys. Ser. Phys. 36, 174 (2003).

2002

D. Haertle, G. Caimi, A. Haldi, G. Montemezzani, A. Grabar, I. Stoyka, and Yu. Vysochanskii, Opt. Commun. 215, 333 (2002).
[CrossRef]

1996

1982

1974

G. Dittmar and H. Schafer, Z. Naturforsch. B 29, 312 (1974).

J. Opt. Soc. Am.

J. Opt. Soc. Am. B

Opt. Commun.

D. Haertle, G. Caimi, A. Haldi, G. Montemezzani, A. Grabar, I. Stoyka, and Yu. Vysochanskii, Opt. Commun. 215, 333 (2002).
[CrossRef]

Opt. Express

D. Haertle, A. Guarino, J. Hajfler, G. Montemezzani, and P. Günter, Opt. Express 13, 2046 (2005).

Phys. Rep.

B. I. Sturman, S. G. Odoulov, and M. Yu. Goul'kov, Phys. Rep. 275, 197 (1996).
[CrossRef]

Visngk Lviv Natl. Univ. Phys. Ser. Phys.

I. Kedyk, A. Grabar, M. Gurzan, and Yu. Vysochanskii, Visngk Lviv Natl. Univ. Phys. Ser. Phys. 36, 174 (2003).

Z. Naturforsch. B

G. Dittmar and H. Schafer, Z. Naturforsch. B 29, 312 (1974).

Other

A. Yariv and P. Yeh, Optical Waves in Crystals (Wiley, 1984).

A. Grabar, M. Jazbinsek, A. Shumelyuk, Yu. M. Vysochanskii, G. Montemezzani, and P. Günter, in Photorefractive Materials and Their Applications 2, P.Günter and J.-P.Huignard, eds. (Springer-Verlag, 2007), pp. 327-362.
[CrossRef]

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Figures (4)

Fig. 1
Fig. 1

Setup for the observation and study of the scattering patterns. SPS, photorefractive sample; λ 2 , phase retarder; P, polarizer.

Fig. 2
Fig. 2

Scattering patterns in y-cut SPS sample for different polarizations of the incident light beam. No polarizer is put between the sample and screen for patterns a and b. For pattern c the intensity of the wide-angle scattering is strongly suppressed. The incident light polarization is indicated in each frame.

Fig. 3
Fig. 3

Optical indicatrix in the x z plane. The angle between the x axis and the longest axis of the ellipse is χ = 43.3 ° for λ = 633 nm at room temperature [8].

Fig. 4
Fig. 4

Polarization angle of the eigenwaves versus beam propagation angle in the x y plane. n 1 , n 2 , and n 3 mark conditions at which the refractive index takes its principal values.

Equations (4)

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ν = 1 2 tan 1 [ ( n 1 2 sin 2 χ n 3 2 sin 2 χ ) sin β ( n 1 2 sin 2 χ + n 3 2 cos 2 χ ) sin 2 β + n 2 2 cos 2 β n 1 2 cos 2 χ n 3 2 sin 2 χ ] .
k inc ( 3 ) k inc ( 1 ) = k scat ( 3 ) k scat ( 1 ) .
k inc ( 1 ) k scat ( 1 ) = k scat ( 3 ) k inc ( 1 ) .
θ ( n 3 + n 1 ) ( n 3 n 1 ) 2 .

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