Influence of etching slope on two-dimensional photonic crystal slab resonators

Myung-Ki Kim, Jin Kyu Yang, Yong Hee Lee, In Kag Hwang

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The influence of the etching slope on the Q-factors in two-dimensional (2D) photonic crystal (PhC) slab resonators is studied. The Q-factor of a three-lattice-long modified linear resonator was measured to be much smaller than the theoretical prediction. Through a finite-difference time-domain (FDTD) simulation, we confirmed that the Q-factor decreases with etching slope. The horizontal loss becomes dominant when the angle of the etching slope exceeds one degree. This loss originates from the coupling into propagating TM-like modes.

Original languageEnglish
Pages (from-to)1027-1031
Number of pages5
JournalJournal of the Korean Physical Society
Volume50
Issue number4
DOIs
Publication statusPublished - 2007 Jan 1
Externally publishedYes

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Keywords

  • Etching slope
  • Micro-cavity
  • Photonic crystal
  • Quality factor

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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