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Efficient scattering model of multi-layer systems with anisotropic films

Efficient scattering model of multi-layer systems with anisotropic films
Efficient scattering model of multi-layer systems with anisotropic films
We present an intuitive and efficient method for modeling light propagation in layered isotropic and anisotropic media, the Iterated Ray Method. Considering a single layer sandwiched between semi-infinite layers, the infinite reflected and transmitted rays are summed to obtain effective Fresnel coefficients for the center layer. Thus, the system can be represented as two semi-infinite layers with an effective boundary. The model is coupled to a recursive algorithm to describe an arbitrarily large, layered system in the same way. It is numerically stable in the presence of evanescent waves and computationally efficient, both in terms of operation counts and vectorization. We demonstrate its importance for the optical analysis and optimization of layered media, such as those used in photo-addressable liquid crystal cells, thin film coatings, and Bragg gratings, by measuring the refractive index and thickness of a thin, azo-benzene dye,
photo-alignment layer, PAAD-22E, on an ITO coated glass slide.
Iterated Ray Method, Beam propagation methods, Optics of layered media, anisotropic media, Birefringence
1084-7529
Gill, Jordan Ronald Ewan
308dc268-ffc7-411b-80ec-761e3c0e55bc
Perivolari, Eleni
a65ec857-cf22-497d-bdb4-66fb449751d3
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
D'alessandro, Giampaolo
bad097e1-9506-4b6e-aa56-3e67a526e83b
Gill, Jordan Ronald Ewan
308dc268-ffc7-411b-80ec-761e3c0e55bc
Perivolari, Eleni
a65ec857-cf22-497d-bdb4-66fb449751d3
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
D'alessandro, Giampaolo
bad097e1-9506-4b6e-aa56-3e67a526e83b

Gill, Jordan Ronald Ewan, Perivolari, Eleni, Kaczmarek, Malgosia and D'alessandro, Giampaolo (2021) Efficient scattering model of multi-layer systems with anisotropic films. Journal of the Optical Society of America A, 38 (5). (doi:10.1364/JOSAA.416265). (In Press)

Record type: Article

Abstract

We present an intuitive and efficient method for modeling light propagation in layered isotropic and anisotropic media, the Iterated Ray Method. Considering a single layer sandwiched between semi-infinite layers, the infinite reflected and transmitted rays are summed to obtain effective Fresnel coefficients for the center layer. Thus, the system can be represented as two semi-infinite layers with an effective boundary. The model is coupled to a recursive algorithm to describe an arbitrarily large, layered system in the same way. It is numerically stable in the presence of evanescent waves and computationally efficient, both in terms of operation counts and vectorization. We demonstrate its importance for the optical analysis and optimization of layered media, such as those used in photo-addressable liquid crystal cells, thin film coatings, and Bragg gratings, by measuring the refractive index and thickness of a thin, azo-benzene dye,
photo-alignment layer, PAAD-22E, on an ITO coated glass slide.

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More information

Accepted/In Press date: 17 March 2021
Keywords: Iterated Ray Method, Beam propagation methods, Optics of layered media, anisotropic media, Birefringence

Identifiers

Local EPrints ID: 448326
URI: http://eprints.soton.ac.uk/id/eprint/448326
ISSN: 1084-7529
PURE UUID: b1a9622c-3ec1-4f22-b0de-f1dd391ef4af
ORCID for Giampaolo D'alessandro: ORCID iD orcid.org/0000-0001-9166-9356

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Date deposited: 20 Apr 2021 16:32
Last modified: 21 Apr 2021 01:36

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