Size effect in waveguide coupled whispering gallery mode disk resonators

Michael Rosenblit, Peter Horak, Ron Folman

Research output: Contribution to journalConference articlepeer-review


We investigate the bound and evanescent fields of the optical whispering gallery modes which are supported by a toroid microcavity and which may be used for a wide range of applications. Results of simulations using finite-difference time domain solutions of Maxwell's equations are compared with semi-analytical solutions based on coupled mode theory. Key parameters such as resonance frequencies, transmittance characteristics, coupling efficiencies, and bending/scattering losses are analyzed as a function of experimental variables such as size, distance, and fabrication roughness. Finally, the feasibility of single-atom detection is discussed.

Original languageEnglish
Article number72
Pages (from-to)530-541
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1 Dec 2004
EventOptical Trapping and Optical Micromanipulation - Denver, CO, United States
Duration: 2 Aug 20046 Aug 2004


  • Atom detection
  • Microdisk resonator
  • WGM

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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