Characterizing whispering-gallery modes in microspheres by direct observation of the optical standing-wave pattern in the near field
Optics Letters, Vol. 21, Issue 10, pp. 698-700 (1996)
http://dx.doi.org/10.1364/OL.21.000698
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Abstract
We demonstrated the use of a near-field probe to map the evanescent field of an optical standing wave in a fused-silica whispering-gallery mode microresonator. The periodicity of the observed standing wave allows us to estimate accurately the radial mode number of the whispering-gallery mode resonance that is being excited. We find that the use of a fiber half-coupler to excite these resonances in fused-silica microspheres results in only the lowest radial mode numbers’ being strongly excited, as predicted.
© 1996 Optical Society of America
Citation
J. C. Knight, N. Dubreuil, V. Sandoghdar, J. Hare, V. Lefèvre-Seguin, J. M. Raimond, and S. Haroche, "Characterizing whispering-gallery modes in microspheres by direct observation of the optical standing-wave pattern in the near field," Opt. Lett. 21, 698-700 (1996)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-21-10-698
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