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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 15, Iss. 7 — Jul. 1, 1998
  • pp: 2099–2106

Rigorous coupled-wave analysis of photorefractive reflection gratings

John M. Jarem and Partha P. Banerjee  »View Author Affiliations


JOSA B, Vol. 15, Issue 7, pp. 2099-2106 (1998)
http://dx.doi.org/10.1364/JOSAB.15.002099


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Abstract

Rigorous coupled-wave reflection grating analysis and Kukhtarev’s equations have been solved in the time domain to determine the optical intensity, electron density, and dielectric modulation in BaTiO3. A novel Green’s-function approach has been developed to analyze Kukhtarev’s material equations. The Green’s-function approach allowed Kukhtarev’s equations to be reduced to a matrix form, from which the electron density could be obtained. A temporal state variable matrix equation was also developed from which full time-dependent solutions of Kukhtarev’s equations could be determined. An electron balance equation was developed from which the different terms in Kukhtarev’s equation could be studied and compared. Numerical simulations were carried out that showed the growth of a photorefractive BaTiO3 reflection grating. The simulation showed that an asymmetric, blazelike pattern resulted for the dielectric modulation. The blazelike pattern was shown to arise from spatial differentiation of a cusplike shape that the electron-density function assumed for its solution.

[Optical Society of America ]

OCIS Codes
(160.5320) Materials : Photorefractive materials

Citation
John M. Jarem and Partha P. Banerjee, "Rigorous coupled-wave analysis of photorefractive reflection gratings," J. Opt. Soc. Am. B 15, 2099-2106 (1998)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-15-7-2099

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