Ab initio theory of defect scattering in spherical whispering-gallery-mode resonators

An exact formalism for the interaction of a spherical whispering-gallery-mode (WGM) microresonator with an externally or internally placed subwavelength scatterer is developed. The experimentally observed doublets in the spectra of high-Q microspheres are shown to correspond to the ideal Mie resonan...

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Veröffentlicht in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2010-05, Vol.81 (5), Article 053827
Hauptverfasser: Rubin, J. T., Deych, L.
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description An exact formalism for the interaction of a spherical whispering-gallery-mode (WGM) microresonator with an externally or internally placed subwavelength scatterer is developed. The experimentally observed doublets in the spectra of high-Q microspheres are shown to correspond to the ideal Mie resonance and a defect-induced resonance, while for TM-polarized WGMs a third peak is predicted. Explicit expressions for positions and widths of these new resonances are derived.
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subjects ATOMIC AND MOLECULAR PHYSICS
CONFIGURATION
DEFECTS
ELECTRONIC EQUIPMENT
INTERACTIONS
MICROSPHERES
PEAKS
RESONANCE
RESONATORS
SCATTERING
SPECTRA
SPHERICAL CONFIGURATION
title Ab initio theory of defect scattering in spherical whispering-gallery-mode resonators
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