Spectral signatures of chirality

Jesper Goor Pedersen, Asger Mortensen

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Abstrakt

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.
OriginalsprogEngelsk
TitelProceedings, Metamaterials: Fundamentals and applications II
Vol/bind7392
ForlagSPIE - International Society for Optical Engineering
Publikationsdato2009
DOI
StatusUdgivet - 2009
Udgivet eksterntJa
BegivenhedMetamaterials: Fundamentals and applications II - San Diego, CA., USA
Varighed: 1. jan. 2009 → …
Konferencens nummer: 739208

Konference

KonferenceMetamaterials: Fundamentals and applications II
Nummer739208
BySan Diego, CA., USA
Periode01/01/2009 → …

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