Two-dimensional metal-chalcogenide films in tunable optical microcavities

S. Schwarz, S. Dufferwiel, P. M. Walker, F. Withers, A. A.P. Trichet, M. Sich, F. Li, E. A. Chekhovich, D. N. Borisenko, N. N. Kolesnikov, K. S. Novoselov, M. S. Skolnick, J. M. Smith, D. N. Krizhanovskii, A. I. Tartakovskii

Research output: Contribution to journalArticlepeer-review

Abstract

Integration of quasi-two-dimensional (2D) films of metal-chalcogenides in optical microcavities permits new photonic applications of these materials. Here we present tunable microcavities with monolayer MoS2 or few monolayer GaSe films. We observe significant modification of spectral and temporal properties of photoluminescence (PL): PL is emitted in spectrally narrow and wavelength-tunable cavity modes with quality factors up to 7400; a 10-fold PL lifetime shortening is achieved, a consequence of Purcell enhancement of the spontaneous emission rate.

Original languageEnglish
Pages (from-to)7003-7008
Number of pages6
JournalNano Letters
Volume14
Issue number12
DOIs
Publication statusPublished - 10 Dec 2014

Keywords

  • 2D materials
  • gallium selenide
  • Molybdenum disulfide
  • photonics
  • Purcell effect
  • tunable microcavities

Research Beacons, Institutes and Platforms

  • National Graphene Institute

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