Enhancement of quality factor for TE whispering-gallery modes in microcylinder resonators
Item Type:Journal Article
Citation:Yang, YD, Huang, YZ, Guo, WH, Lu, QY, Donegan, JF, Enhancement of quality factor for TE whispering-gallery modes in microcylinder resonators, Optics Express, 18, 12, 2010, 13057-13062
oe-18-12-13057.pdf (Published (publisher's copy) - Peer Reviewed) 916.2Kb
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.
Type of material:Journal Article
Series/Report no:Optics Express;
Availability:Full text available