A tunable microcavity

Russell J. Barbour, Paul A. Dalgarno, Arran Curran, Krzysztof Nowak, Howard J. Baker, Denis R. Hall, Nick G. Stoltz, Pierre M. Petroff, Richard J. Warburton

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)


We present a generic microcavity platform for cavity experiments on optically active nanostructures, such as quantum dots, nanocrystals, color centers, and carbon nanotubes. The cavity is of the Fabry-Perot type with a planar back mirror and a miniature concave top mirror with radius of curvature similar to 100 mu m. Optical access is achieved by free beam coupling, allowing good mode-matching to the cavity mode. The cavity has a high Q-factor, reasonably small mode volume, open access, spatial and spectral tunability, and operates at cryogenic temperatures. Spectral and spatial tuning of the Purcell effect (weak coupling regime) on a single InGaAs quantum dot is demonstrated. (C) 2011 American Institute of Physics. [doi:10.1063/1.3632057]

Original languageEnglish
Article number053107
Pages (from-to)-
Number of pages5
JournalJournal of Applied Physics
Issue number5
Publication statusPublished - 1 Sept 2011


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