High-Q photonic crystal microcavities fabricated in a thin GaAs membrane

C. Reese*, B. Gayral, B. D. Gerardot, A. Imamoǧlu, P. M. Petroff, E. Hu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


Photonic crystal microcavities in thin GaAs membranes having H1 and H2 defects for lattice constants as small as 255 nm were fabricated. In the H2 microcavities, cavity resonances with very large Q factors were observed. Furthermore it was demonstrated that by varying the lattice constant, it is possible to design microcavities with modes for a wide range of wavelengths. Finally, the symmetry degeneracy of the high-Q modes was found to be split by the perturbation related to errors introduced by the fabrication process.

Original languageEnglish
Pages (from-to)2749-2752
Number of pages4
JournalJournal Vacuum Science and Technology B
Issue number6
Publication statusPublished - Nov 2001

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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