Supermodes of chiral photonic filters with combined twist and layer defects

Ian J. Hodgkinson, Qi hong Wu, Lakshman De Silva, Matthew Arnold, Martin W. McCall, Akhlesh Lakhtakia

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Abstract

We consider the circularly polarized localized modes of chiral photonic structures with combined central twist and isotropic layer defects. The general filter is shown to suffer from anomalous remittance and saturation of linewidth as the thickness of the structure is increased. However, by choosing parameters that phase match the elements of the round-trip matrix of the isotropic layer defect, we demonstrate the existence of supermodes that maintain exceptional purity of polarization state and exponential decrease in linewidth as the thickness is increased.

Original languageEnglish (US)
JournalPhysical Review Letters
Volume91
Issue number22
DOIs
Publication statusPublished - Jan 1 2003

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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