Interferential coupling effect on the whispering-gallery mode lasing in a double-layered microcylinder
- 6 May 2002
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 80 (18) , 3250-3252
- https://doi.org/10.1063/1.1476399
Abstract
Enhanced mode selection through a strong interferential coupling effect was observed in a double-layered cylindrical microcavity laser. The coupling was induced by partial reflection and recombination with refracted light on the internal circular boundary of the fused silica capillary tube, filled with a dye-doped liquid having lower reflective index than that of fused silica. The observed interference period agreed well with the prediction by a ray-optic model.Keywords
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