Response of chiral sculptured thin films to dipolar sources

Akhlesh Lakhtakia; Martin W. McCall

doi:10.1078/1434-8411-54100137

Response of chiral sculptured thin films to dipolar sources

Akhlesh Lakhtakia, Martin W. McCall

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Dyadic Green functions (DGFs) are formulated, for a chiral sculptured thin film (STF) sandwiched between two vacuous half-spaces, as angular spectrums of propagating and evanescent plane waves. Asymptotic evaluation of the DGFs is carried out to obtain simple far-field expressions. The radiation patterns of dipolar sources held close to the chiral STF are computed and discussed, in relation to the circular Bragg phenomenon that the chosen nanomaterials are known to display on illumination by circularly polarized plane waves.

Original language	English (US)
Pages (from-to)	23-32
Number of pages	10
Journal	AEU - International Journal of Electronics and Communications
Volume	57
Issue number	1
DOIs	https://doi.org/10.1078/1434-8411-54100137
State	Published - 2003

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

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10.1078/1434-8411-54100137

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title = "Response of chiral sculptured thin films to dipolar sources",

abstract = "Dyadic Green functions (DGFs) are formulated, for a chiral sculptured thin film (STF) sandwiched between two vacuous half-spaces, as angular spectrums of propagating and evanescent plane waves. Asymptotic evaluation of the DGFs is carried out to obtain simple far-field expressions. The radiation patterns of dipolar sources held close to the chiral STF are computed and discussed, in relation to the circular Bragg phenomenon that the chosen nanomaterials are known to display on illumination by circularly polarized plane waves.",

author = "Akhlesh Lakhtakia and McCall, {Martin W.}",

note = "Funding Information: Acknowledgement. A. L. thanks the Weiss Graduate Fellowship Program at the Pennsylvania State University for partial financial support. M.W.M. acknowledges the support of the Engineering and Physical Sciences Research Council of Great Britain (EPSRC grant no. GR/R55078/01). Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

year = "2003",

doi = "10.1078/1434-8411-54100137",

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AU - McCall, Martin W.

N1 - Funding Information: Acknowledgement. A. L. thanks the Weiss Graduate Fellowship Program at the Pennsylvania State University for partial financial support. M.W.M. acknowledges the support of the Engineering and Physical Sciences Research Council of Great Britain (EPSRC grant no. GR/R55078/01). Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

PY - 2003

Y1 - 2003

N2 - Dyadic Green functions (DGFs) are formulated, for a chiral sculptured thin film (STF) sandwiched between two vacuous half-spaces, as angular spectrums of propagating and evanescent plane waves. Asymptotic evaluation of the DGFs is carried out to obtain simple far-field expressions. The radiation patterns of dipolar sources held close to the chiral STF are computed and discussed, in relation to the circular Bragg phenomenon that the chosen nanomaterials are known to display on illumination by circularly polarized plane waves.

AB - Dyadic Green functions (DGFs) are formulated, for a chiral sculptured thin film (STF) sandwiched between two vacuous half-spaces, as angular spectrums of propagating and evanescent plane waves. Asymptotic evaluation of the DGFs is carried out to obtain simple far-field expressions. The radiation patterns of dipolar sources held close to the chiral STF are computed and discussed, in relation to the circular Bragg phenomenon that the chosen nanomaterials are known to display on illumination by circularly polarized plane waves.

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Response of chiral sculptured thin films to dipolar sources

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