Propagation characteristics of guided waves in stratified metallic optical waveguides
Propagation characteristics of guided waves in stratified metallic optical waveguides
An eigenvalue equation is derived for stratified metallic optical slab waveguides with any number of layers. The equation is solved using the numerical zoom analysis (NZA) method. The analysis is applied to various metallic optical slabs and the propagation characteristics of the guided waves are determined, which may be useful for optimizing the design parameters. It is found possible, with proper optimization, to design a polarizer having hundreds of decibels of extinction ratio at the cost of a fraction of a decibel of insertion loss. Examples of optimizations with respect to wavelength, relative refractive indices, core/clad geometries, etc. are demonstrated for slabs with single or double metal layers. Guidelines for determining the metal film thickness have been formulated and tabulated for many useful metals.
1316-1325
Tsao, Charles Y.H.
4d873f6c-bb77-4c1a-a155-c49b6330cdac
Li, Luksun
6579b8ee-cb81-4543-b9f8-7d8654560fa7
Payne, David N.
4f592b24-707f-456e-b2c6-8a6f750e296d
1 April 1988
Tsao, Charles Y.H.
4d873f6c-bb77-4c1a-a155-c49b6330cdac
Li, Luksun
6579b8ee-cb81-4543-b9f8-7d8654560fa7
Payne, David N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Tsao, Charles Y.H., Li, Luksun and Payne, David N.
(1988)
Propagation characteristics of guided waves in stratified metallic optical waveguides.
Applied Optics, 27 (7), .
(doi:10.1364/AO.27.001316).
Abstract
An eigenvalue equation is derived for stratified metallic optical slab waveguides with any number of layers. The equation is solved using the numerical zoom analysis (NZA) method. The analysis is applied to various metallic optical slabs and the propagation characteristics of the guided waves are determined, which may be useful for optimizing the design parameters. It is found possible, with proper optimization, to design a polarizer having hundreds of decibels of extinction ratio at the cost of a fraction of a decibel of insertion loss. Examples of optimizations with respect to wavelength, relative refractive indices, core/clad geometries, etc. are demonstrated for slabs with single or double metal layers. Guidelines for determining the metal film thickness have been formulated and tabulated for many useful metals.
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Published date: 1 April 1988
Identifiers
Local EPrints ID: 78476
URI: http://eprints.soton.ac.uk/id/eprint/78476
ISSN: 0003-6935
PURE UUID: f0d10a3e-2e18-41cf-92e8-07f70d385c80
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:15
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Author:
Charles Y.H. Tsao
Author:
Luksun Li
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