Spectral signatures of chirality

Jesper Goor Pedersen, Asger Mortensen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

We present a new way of measuring chirality, via the spectral shift of photonic band gaps in one-dimensional structures. We derive an explicit mapping of the problem of oblique incidence of circularly polarized light on a chiral one-dimensional photonic crystal with negligible index contrast to the formally equivalent problem of linearly polarized light incident on-axis on a non-chiral structure with index contrast. We derive analytical expressions for the first-order shifts of the band gaps for negligible index contrast. These are modified to give good approximations to the band gap shifts also in the case of appreciable index contrast. We believe that this may potentially be used for measuring enantiomeric excess.
Original languageEnglish
Title of host publicationProceedings, Metamaterials: Fundamentals and applications II
Volume7392
PublisherSPIE - International Society for Optical Engineering
Publication date2009
DOIs
Publication statusPublished - 2009
EventMetamaterials: Fundamentals and applications II - San Diego, CA., USA
Duration: 1 Jan 2009 → …
Conference number: 739208

Conference

ConferenceMetamaterials: Fundamentals and applications II
Number739208
CitySan Diego, CA., USA
Period01/01/2009 → …

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