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PDMS quasi-droplet microbubble resonator

Research output: Chapter in Book/Report/Conference proceedingsConference proceedingpeer-review

Abstract

A thin-walled microbubble whispering gallery resonator was fabricated and filled with a polymer (Polydimethylsiloxane : PDMS) to form a polymer quasi-droplet optical microcavity. The thermal shifting of the whispering gallery modes (WGMs) was studied pre and post curing of the polymer. In both cases, large thermal shifts were observed. However, the sign of the shift changed as the polymer hardened. The final state of the cavity showed a large red shift of the modes. Complex mode mixing was also observed which results in EIT (electromagnetically induced transparency) and Fano-like resonances. The time response of the polymer-filled bubble was investigated demonstrating regenerative self-oscillation for a fixed laser detuning with a low threshold power.

Original languageEnglish
Title of host publicationLaser Resonators, Microresonators, and Beam Control XVII
EditorsAlan H. Paxton, Vladimir S. Ilchenko, Kunihiko Washio, Alexis V. Kudryashov, Lutz Aschke
PublisherSPIE
ISBN (Electronic)9781628414332
DOIs
Publication statusPublished - 2015
Externally publishedYes
EventLaser Resonators, Microresonators, and Beam Control XVII - San Francisco, United States
Duration: 9 Feb 201512 Feb 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9343
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceLaser Resonators, Microresonators, and Beam Control XVII
Country/TerritoryUnited States
CitySan Francisco
Period9/02/1512/02/15

Keywords

  • Microbubble
  • Microresonator
  • Polymer
  • Regenerative self-oscillation
  • Whispering gallery

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