Resonant modes of 12-fold symmetric defect free photonic quasicrystal

Minfeng Chen, Yun Jing Lin, Yuh Jen Cheng, Yai-Chung Chang, Chun-Yen Chang

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

This work investigates the resonant modes of a 12-fold symmetric defect free photonic quasicrystal (PQC) nanorod array using finite difference time domain (FDTD) simulation. Localized modes can exist in PQC without introducing defects due to the lack of translational symmetry. The resonant modes of the unit cell PQC and the one time expanded PQC from unit cell are systematically examined. The resonant spectrum is that of a single rod modified by the interaction among PQC nanorods. The mode confinement is contributed by guided resonance and destructive interference scattering. The self-scaling similarity of resonant spectrum and mode profile are also investigated. (C) 2014 Optical Society of America
Original languageEnglish
Pages (from-to)2008-2013
Number of pages6
JournalOptics Express
Volume22
Issue number2
DOIs
StatePublished - 27 Jan 2014

Keywords

  • LOCALIZATION; FIBONACCI

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