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 journalArticlepeer-review

11 Citations (Scopus)


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
Issue number4
Publication statusPublished - 2007 Apr
Externally publishedYes


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

ASJC Scopus subject areas

  • Physics and Astronomy(all)


Dive into the research topics of 'Influence of etching slope on two-dimensional photonic crystal slab resonators'. Together they form a unique fingerprint.

Cite this