Zak phases of chiral photonic crystals designed via transformation optics

Ting Wai Lau, Yong Liang Zhang, Kin Hung Fung

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)


We study a class of inhomogeneous chiral photonic crystals with topologically nontrivial bands and edge modes using the approach of non-coordinate transformation optics. By transforming the chiral photonic crystals into achiral binary photonic crystals, the closed-form solutions to the photonic bands of the chiral photonic crystals are obtained. We show that the topological edge modes of these chiral photonic crystals can be accurately predicted by the Zak phases developed from the topological band theory for achiral binary photonic crystals.

Original languageEnglish
Article number064312
JournalPhysical Review B
Issue number6
Publication statusPublished - 1 Aug 2021

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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