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High Q modes in elliptical microcavity pillars

  • D. M. Whittaker*
  • , P. S.S. Guimaraes
  • , D. Sanvitto
  • , H. Vinck
  • , S. Lam
  • , A. Daraei
  • , J. A. Timpson
  • , A. M. Fox
  • , M. S. Skolnick
  • , Y. L.D. Ho
  • , J. G. Rarity
  • , M. Hopkinson
  • , A. Tahraoui
  • *Corresponding author for this work
  • University of Sheffield
  • Universidade Federal de Minas Gerais
  • Universidad de Antioquia
  • University of Bristol

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

The degenerate fundamental mode of a microcavity pillar structure with circular cross section splits into two linearly polarized modes when the shape is changed to elliptical. The quality factor Q of these modes is very different. This letter demonstrates that the high Q mode provides better values of the figure of merit for strong coupling applications, Q/√V), where V is the modal volume, compared to values obtainable in circular structures. The difference in Q is shown to be a consequence of the polarization dependence of the losses through the microcavity mirrors.

Original languageEnglish
Article number161105
JournalApplied Physics Letters
Volume90
Issue number16
DOIs
Publication statusPublished - 2007
Externally publishedYes

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