Coupled whispering gallery modes in a multilayer-coated microsphere
Optics Letters, Vol. 32, Issue 9, pp. 1147-1149 (2007)
http://dx.doi.org/10.1364/OL.32.001147
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Abstract
Whispering gallery modes in a microsphere coated with three layers of high, low, and high refractive indices (RIs) are considered. Coastal modes and inland modes, centered on the outer and inner high-RI layers, exist as different radial modes. At right values of RI and thickness of the three layers, an inland mode and a coastal mode couple to produce a radial distribution of the photonic field that resembles bonding and antibonding orbitals. The coupling occurs across a layer of the middle low-RI layer, much thicker than the wavelength of light. The coupling is analyzed in a quantum-mechanical analog of a one-dimensional particle in a double-well potential.
© 2007 Optical Society of America
OCIS Codes
(230.5750) Optical devices : Resonators
(260.5740) Physical optics : Resonance
ToC Category:
Optical Devices
History
Original Manuscript: November 20, 2006
Revised Manuscript: January 8, 2007
Manuscript Accepted: January 29, 2007
Published: April 3, 2007
Citation
Iwao Teraoka and Stephen Arnold, "Coupled whispering gallery modes in a multilayer-coated microsphere," Opt. Lett. 32, 1147-1149 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-9-1147
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