Enhancement of quality factor for TE whispering-gallery modes in microcylinder resonators

The enhancement of quality factor for TE whispering-gallery modes is analyzed for three-dimensional microcylinder resonators based on the destructive interference between vertical leakage modes. In the microcylinder resonator, the TE whispering-gallery modes can couple with vertical propagation modes, which results in vertical radiation loss and low quality factors. However, the vertical loss can be canceled by choosing appropriate thickness of the upper cladding layer or radius of the microcylinder. A mode quality factor increase by three orders of magnitude is predicted by finite-difference time-domain simulation. Furthermore, the condition of vertical leakage cancellation is analyzed.

Submitted by 阎军 (yanj@red.semi.ac.cn) on 2010-07-05T07:19:37Z No. of bitstreams: 1 Enhancement of quality factor for TE whispering-gallery modes in microcylinder resonators.pdf: 938245 bytes, checksum: 11db0d94844a58b9cfdc77188facebbf (MD5)

Approved for entry into archive by 安俊明(junming@semi.ac.cn) on 2010-07-05T07:31:35Z (GMT) No. of bitstreams: 1 Enhancement of quality factor for TE whispering-gallery modes in microcylinder resonators.pdf: 938245 bytes, checksum: 11db0d94844a58b9cfdc77188facebbf (MD5)

Made available in DSpace on 2010-07-05T07:31:35Z (GMT). No. of bitstreams: 1 Enhancement of quality factor for TE whispering-gallery modes in microcylinder resonators.pdf: 938245 bytes, checksum: 11db0d94844a58b9cfdc77188facebbf (MD5) Previous issue date: 2010

This work was supported by the National Nature Science Foundation of China under Grants 60777028, 60723002 and 60838003, and the Major State Basic Research Program under Grant 2006CB302804, and the Project of National Lab for Tsinghua Information Technologies and by Science Foundation Ireland under grants 07/SRC/I1173 and 08/CE/I1523.

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This work was supported by the National Nature Science Foundation of China under Grants 60777028, 60723002 and 60838003, and the Major State Basic Research Program under Grant 2006CB302804, and the Project of National Lab for Tsinghua Information Technologies and by Science Foundation Ireland under grants 07/SRC/I1173 and 08/CE/I1523.