Effective medium theory of light scattering in polymer dispersed liquid crystal films
Effective medium theory of light scattering in polymer dispersed liquid crystal films
We present calculations of the optical properties of PDLC films subjected to normally incident unpolarized light, in the long-wavelength regime under which the Rayleigh-Gans approximation applies. The calculations use an effective medium theory to take account of dependent scattering effects due to close packing of droplets, and use the Percus-Yevick approximation for hard spheres to account for interference effects. The director configurations inside the droplets are found using the effective medium theory which we have developed in earlier papers. Typical results are presented for radial and bipolar droplets. Detailed quantitative results have been derived for the optical characteristics in the presence of an applied field for the technologically important case of PDLC films containing partially ordered bipolar droplets.
1611-1625
Cox, S.J.
0e62aaed-24ad-4a74-b996-f606e40e5c55
Reshetnyak, V.Yu.
1443c2dd-2066-4dd6-ae18-f3b408dea98d
Sluckin, T.J.
8dbb6b08-7034-4ae2-aa65-6b80072202f6
30 March 1998
Cox, S.J.
0e62aaed-24ad-4a74-b996-f606e40e5c55
Reshetnyak, V.Yu.
1443c2dd-2066-4dd6-ae18-f3b408dea98d
Sluckin, T.J.
8dbb6b08-7034-4ae2-aa65-6b80072202f6
Cox, S.J., Reshetnyak, V.Yu. and Sluckin, T.J.
(1998)
Effective medium theory of light scattering in polymer dispersed liquid crystal films.
Journal of Physics D: Applied Physics, 31 (14), .
(doi:10.1088/0022-3727/31/14/002).
Abstract
We present calculations of the optical properties of PDLC films subjected to normally incident unpolarized light, in the long-wavelength regime under which the Rayleigh-Gans approximation applies. The calculations use an effective medium theory to take account of dependent scattering effects due to close packing of droplets, and use the Percus-Yevick approximation for hard spheres to account for interference effects. The director configurations inside the droplets are found using the effective medium theory which we have developed in earlier papers. Typical results are presented for radial and bipolar droplets. Detailed quantitative results have been derived for the optical characteristics in the presence of an applied field for the technologically important case of PDLC films containing partially ordered bipolar droplets.
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Published date: 30 March 1998
Organisations:
Electronics & Computer Science
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Local EPrints ID: 250979
URI: http://eprints.soton.ac.uk/id/eprint/250979
PURE UUID: f1f8424a-6679-4879-9243-75dd9ee965e5
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Date deposited: 08 Oct 1999
Last modified: 15 Mar 2024 02:32
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Author:
V.Yu. Reshetnyak
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