Chinese Optics Letters, Volume. 6, Issue 4, 300(2008)

Directly mapping whispering gallery modes in a microsphere through modal coupling and directional emission

We fabricate slightly deformed fused-silica microspheres in which whispering gallery modes possess remarkably directional escape emission from the microsphere boundary. With efficient free-space excitation and collection, the lateral spatial distribution of whispering gallery modes with different azimuthal mode numbers, m, is directly observed through modal coupling and directional emission. Excellent agreement with theory is obtained.

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. Directly mapping whispering gallery modes in a microsphere through modal coupling and directional emission[J]. Chinese Optics Letters, 2008, 6(4): 300

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Paper Information

Received: Oct. 9, 2007

Accepted: --

Published Online: Apr. 21, 2008

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