Fabrication and testing of microfluidic optomechanical oscillators

Kewen Han, Kyu Hyun Kim, Junhwan Kim, Wonsuk Lee, Jing Liu, Xudong Fan, Tal Carmon, Gaurav Bahl

Research output: Contribution to journalArticlepeer-review


Cavity optomechanics experiments that parametrically couple the phonon modes and photon modes have been investigated in various optical systems including microresonators. However, because of the increased acoustic radiative losses during direct liquid immersion of optomechanical devices, almost all published optomechanical experiments have been performed in solid phase. This paper discusses a recently introduced hollow microfluidic optomechanical resonator. Detailed methodology is provided to fabricate these ultra-high-Q microfluidic resonators, perform optomechanical testing, and measure radiation pressure-driven breathing mode and SBS-driven whispering gallery mode parametric vibrations. By confining liquids inside the capillary resonator, high mechanical- and optical- quality factors are simultaneously maintained.

Original languageEnglish
Article numbere51497
JournalJournal of Visualized Experiments
Issue number87
StatePublished - 29 May 2014
Externally publishedYes


  • Issue 87
  • Microfluidics
  • Nonlinear optics
  • Optomechanics
  • Oscillators
  • Physics
  • Radiation pressure
  • Stimulated Brillouin scattering (SBS)
  • Whispering gallery resonators (WGR)


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