Suppression of residual single-photon absorption relative to two-photon absorption in high finesse planar microcavities

Wei Hua Guo, John O'Dowd, Edward Flood, Tom Quinlan, Michael Lynch, Ann Louise Bradley, John Francis Donegan, Krzysztof Bondarczuk, Paul J. Maguire, Liam P. Barry

Research output: Contribution to journalArticlepeer-review

Abstract

Suppression of residual single-photon absorption (SPA) relative to two-photon absorption (TPA) in a high finesse GaAs planar microcavity is explored. The TPA photocurrent becomes larger than the SPA photocurrent as long as the incident continuous-wave optical power exceeds 0.09 mW. An optical power of 5 mW would be required if the relative SPA suppression did not exist.

Original languageEnglish
Pages (from-to)1426-1428
Number of pages3
JournalIEEE Photonics Technology Letters
Volume20
Issue number16
DOIs
Publication statusPublished - 15 Aug 2008
Externally publishedYes

Keywords

  • Finesse
  • Planar microcavity
  • Single-photon absorption (SPA)
  • Two-photon absorption (TPA)

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