Visible photoluminescence from cubic (3C) silicon carbide microdisks coupled to high quality whispering gallery modes

Marina Radulaski, Thomas M. Babinec, Kai Müller, Konstantinos G. Lagoudakis, Jingyuan Linda Zhang, Sonia Buckley, Yousif A. Kelaita, Kassem Alassaad, Gabriel Ferro, Jelena Vučković

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

We present the design, fabrication, and characterization of cubic (3C) silicon carbide microdisk resonators with high quality factor modes at visible and near-infrared wavelengths (600-950 nm). Whispering gallery modes with quality factors as high as 2300 and corresponding mode volumes V ∼ 2 x (N/n)3 are measured using laser scanning confocal microscopy at room temperature. We obtain excellent correspondence between transverse-magnetic (TM) and transverse-electric (TE) polarized resonances simulated using Finite Difference Time Domain (FDTD) method and those observed in experiment. These structures based on ensembles of optically active impurities in 3C-SiC resonators could play an important role in diverse applications of nonlinear and quantum photonics, including low power optical switching and quantum memories.
Original languageEnglish
Pages (from-to)14-19
Number of pages6
JournalACS Photonics
Volume2
Issue number1
DOIs
Publication statusPublished - 18 Dec 2015

Keywords

  • cubic silicon carbide
  • microdisks
  • photoluminescence
  • whispering gallery modes

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