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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 4 — May. 22, 2013

Electromagnetic wave scattering from a rough interface above a chiral medium: generalized telegraphists’ equations

E. Bahar and P. E. Crittenden  »View Author Affiliations


JOSA A, Vol. 30, Issue 3, pp. 335-341 (2013)
http://dx.doi.org/10.1364/JOSAA.30.000335


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Abstract

Using complete modal expansions for the electromagnetic fields above and below a rough interface between free space and chiral media and on imposing exact boundary conditions at the interface, Maxwell’s equations are converted into generalized telegraphists’ equations for the wave amplitudes of different species of waves (radiation far fields, lateral, and surface waves). The local basis functions, used in the complete modal expansions, are functions of the fluctuating surface height and medium parameters. The generalized telegraphists’ equations are coupled first-order differential equations for the forward- and backward-traveling wave amplitudes. The coupling between the different species of waves is due to the fluctuations of the rough surface height and medium parameters. A Taylor series expansion of the surface element scattering matrix in terms of the chiral parameter is used to distinguish between depolarization due to surface roughness and the chiral properties of the medium. The analysis has applications in remote sensing and identification of biological and chemical materials through their optical activity.

© 2013 Optical Society of America

OCIS Codes
(240.5770) Optics at surfaces : Roughness
(290.5880) Scattering : Scattering, rough surfaces

ToC Category:
Scattering

History
Original Manuscript: December 3, 2012
Manuscript Accepted: December 31, 2012
Published: February 6, 2013

Virtual Issues
Vol. 8, Iss. 4 Virtual Journal for Biomedical Optics

Citation
E. Bahar and P. E. Crittenden, "Electromagnetic wave scattering from a rough interface above a chiral medium: generalized telegraphists’ equations," J. Opt. Soc. Am. A 30, 335-341 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=josaa-30-3-335

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