Lasing from a circular Bragg nanocavity with an ultrasmall modal volume

Jacob Scheuer, William M.J. Green, Guy A. Derose, Amnon Yariv

Research output: Contribution to journalArticlepeer-review

Abstract

We demonstrate single-mode lasing at telecommunication wavelengths from a circular nanocavity employing a radial Bragg reflector. Ultrasmall modal volumes and submilliwatt pump thresholds level are observed for lasers with InGaAsP quantum well active membrane. The electromagnetic field is shown to be tightly confined within the 300 nm central pillar of the cavity. The quality factors of the resonator modal fields are estimated to be on the order of a few thousands.

Original languageEnglish
Article number251101
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume86
Issue number25
DOIs
StatePublished - 2005
Externally publishedYes

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