Optimized polaritonic modes in whispering gallery microcavities

Tao Hu, Wei Xie, Lin Wu, Yafeng Wang, Long Zhang, Zhanghai Chen

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

We study both theoretically and experimentally the quality factor characteristic and the optimized polaritonic modes in a whispering gallery microcavity. The quality factors (Q-factors) of the resonant modes are determined by two main factors, i.e., the so called cavity loss and media loss. These two factors determine the final Q-factor and spontaneously lead to an optimized wavelength range for polariton modes. By using finite element analysis (FEA), we present the numerical simulation of resonant frequencies, field distributions and quality factors of the TE polarized whispering gallery modes (WGMs), which agree well with the experimental results. The control of optimized resonance in polaritonic system will be very useful for the development of semiconductor lasers with low threshold.

Original languageEnglish
Pages (from-to)7-10
Number of pages4
JournalSolid State Communications
Volume262
DOIs
StatePublished - Aug 2017
Externally publishedYes

Keywords

  • Exciton polaritons
  • Finite element analysis
  • Quality factor
  • Whispering gallery modes

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