Enhanced circular dichroism via slow light in dispersive structured media

Jesper Goor Pedersen, Asger Mortensen

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    Abstract

    Circular dichroism (CD) is in widespread use as a means of determining enantiomeric excess. We show how slow-light phenomena in dispersive structured media allow for a reduction in the required optical path length of an order of magnitude. The same ideas may be used to enhance the sensitivity of CD measurements while maintaining the same optical path length through the sample. Finally, the sensitivity may be enhanced in frequency regimes where CD data are typically not accessible due to a modest chiral response of the enantiomers. ©2007 American Institute of Physics
    Original languageEnglish
    JournalApplied Physics Letters
    Volume91
    Issue number21
    Pages (from-to)213501
    ISSN0003-6951
    DOIs
    Publication statusPublished - 2007

    Bibliographical note

    Copyright (2007) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

    Keywords

    • A-CHIP APPLICATIONS
    • OPTICS

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