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Regime independent coupled-wave equations in anisotropic photorefractive media

Regime independent coupled-wave equations in anisotropic photorefractive media
Regime independent coupled-wave equations in anisotropic photorefractive media
An extension to coupled wave theory suitable for all regimes of diffraction is presented. The model assumes that the refractive index grating has an arbitrary profile in one direction and is periodic (but not necessarily sinusoidal) in the other. Higher order diffracted terms are considered and appropriate mismatch terms dealt with. It is shown that this model is analytically equivalent to both the Bragg and Raman–Nath regime coupling models under an appropriate set of assumptions. This model is applied to cases such as optical coupling in liquid crystal cells with photoconductive layers. Its predictions are successfully compared to finite element simulations of the full Maxwell’s equations.
0946-2171
589-596
Daly, Keith R.
64f85c2e-2562-44df-9cb8-1be7fbc7e74c
D'Alessandro, Giampaolo
bad097e1-9506-4b6e-aa56-3e67a526e83b
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
Daly, Keith R.
64f85c2e-2562-44df-9cb8-1be7fbc7e74c
D'Alessandro, Giampaolo
bad097e1-9506-4b6e-aa56-3e67a526e83b
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327

Daly, Keith R., D'Alessandro, Giampaolo and Kaczmarek, Malgosia (2009) Regime independent coupled-wave equations in anisotropic photorefractive media. Applied Physics B, 95 (3), 589-596. (doi:10.1007/s00340-009-3492-1).

Record type: Article

Abstract

An extension to coupled wave theory suitable for all regimes of diffraction is presented. The model assumes that the refractive index grating has an arbitrary profile in one direction and is periodic (but not necessarily sinusoidal) in the other. Higher order diffracted terms are considered and appropriate mismatch terms dealt with. It is shown that this model is analytically equivalent to both the Bragg and Raman–Nath regime coupling models under an appropriate set of assumptions. This model is applied to cases such as optical coupling in liquid crystal cells with photoconductive layers. Its predictions are successfully compared to finite element simulations of the full Maxwell’s equations.

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Published date: June 2009
Organisations: Applied Mathematics

Identifiers

Local EPrints ID: 66302
URI: https://eprints.soton.ac.uk/id/eprint/66302
ISSN: 0946-2171
PURE UUID: c98a79f3-8f26-4d14-8a94-0eba2199e461
ORCID for Giampaolo D'Alessandro: ORCID iD orcid.org/0000-0001-9166-9356

Catalogue record

Date deposited: 01 Jun 2009
Last modified: 06 Jun 2018 13:05

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