Share Email Print

Proceedings Paper

An investigation into Voigt wave propagation for optical sensing
Author(s): Tom G. Mackay
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

In the nonsingular case of optical propagation in a linear, homogeneous, anisotropic, dielectric material, two independent plane waves, with orthogonal polarizations and different phase speeds, can propagate in a given direction. However, in certain dissipative biaxial materials there are particular directions along which these two waves coalesce to form a single plane wave. This coalescent Voigt wave represents the singular case. Most conspicuously, the amplitude of Voigt waves are linearly dependent upon propagation direction. A porous nanostructured thin film which supports Voigt wave propagation was investigated, with a view to possible optical sensing applications. The directions along which Voigt waves propagate can be highly sensitive to the refractive index of a fluid which infiltrates this porous material. Indeed, in our theoretical studies sensitivities which compare favourably to those of surface-plasmon-polariton-based optical sensors were found.

Paper Details

Date Published: 19 September 2013
PDF: 9 pages
Proc. SPIE 8818, Nanostructured Thin Films VI, 88180A (19 September 2013);
Show Author Affiliations
Tom G. Mackay, The Univ. of Edinburgh (United Kingdom)
The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 8818:
Nanostructured Thin Films VI
Tom G. Mackay; Akhlesh Lakhtakia; Yi-Jun Jen; Motofumi Suzuki, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?