Fabrication and modelling of truncated oblate and prolate microresonators

摘要

We have demonstrated softening and micromorphing techniques of amorphous/crystalline materials for fabricating high quality oblate or prolate microresonators. Firstly, "soften-and-compress" technique has been developed for fabricating bottle microresonators from standard fibers or capillaries using splicers. Also, a "soften-and-squash" technique has been demonstrated for fabricating microdiscus resonators by squashing microspheres between glassy-carbon plates. Finally, a softening process was developed for turning crystalline microstructures into predominantly oblate microresonators. We have also developed an efficient transfer-matrix method for calculating resonant frequencies and field distributions in truncated oblate and prolate structures and applied it to analyze resonant characteristics of the new microresonators.