Gain Spectroscopy of Solution-Based Semiconductor Nanocrystals in Tunable Optical Microcavities

Robin K. Patel, Aurélien A. P. Trichet, David Coles, Philip R. Dolan, Simon Fairclough, Marina A. Leontiadou, Edman Tsang, David Binks, Eunjoo Jang, Hyosook Jang, Robert A. Taylor, Jason M. Smith

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The lasing behavior of solution-based colloidal quantum dots within an open microcavity is reported. The small size and wide tunability of the cavity provide single mode lasing over a wavelength range in excess of 25 nm. By extracting the lasing threshold and differential gain for the fundamental cavity mode over this spectral range, gain spectroscopy of the quantum dot solution is demonstrated. This new approach could help in the optimization of laser gain media and provides a way of constructing miniature laser arrays for on-chip integration.
    Original languageEnglish
    JournalAdvanced Optical Materials
    DOIs
    Publication statusPublished - 24 Nov 2015

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