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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Franco Gori
  • Vol. 27, Iss. 11 — Nov. 1, 2010
  • pp: 2354–2364

Analysis of far-infrared horns, lightpipes, and cavities containing patterned conductive films

Stafford Withington and Christopher N. Thomas  »View Author Affiliations

JOSA A, Vol. 27, Issue 11, pp. 2354-2364 (2010)

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A scheme is described for calculating the scattering parameters of patterned conductive films in waveguide. The films can have non-uniform, non-isotropic, and non-local sheet impedances. Once the scattering parameters are known, they can be combined with the scattering parameters of paths, dielectric slabs, and waveguide steps to build up models of complicated components comprising patterned films in profiled lightpipes and cavities. It is then straightforward to calculate the Stokes fields of the total reception pattern, the natural optical modes to which the component is sensitive, the Stokes fields of the individual natural modes, and the spatial state of coherence. The method is demonstrated by modeling an absorbing pixel in a length of shorted multimode waveguide. The natural optical modes change from being those of the waveguide to those of a free-space pixel as the size of the absorber is reduced.

© 2010 Optical Society of America

OCIS Codes
(030.0030) Coherence and statistical optics : Coherence and statistical optics
(040.0040) Detectors : Detectors
(230.0230) Optical devices : Optical devices
(310.0310) Thin films : Thin films

ToC Category:
Coherence and Statistical Optics

Original Manuscript: July 7, 2010
Manuscript Accepted: September 2, 2010
Published: October 5, 2010

Stafford Withington and Christopher N. Thomas, "Analysis of far-infrared horns, lightpipes, and cavities containing patterned conductive films," J. Opt. Soc. Am. A 27, 2354-2364 (2010)

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