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Proceedings Paper

How to simulate the whispering-gallery modes of dielectric microresonators in FEMLAB/COMSOL
Author(s): Mark Oxborrow
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Paper Abstract

It is explained how FEMLAB / COMSOL Multiphysics can be configured to calculate, the frequencies, electromagnetic-field patterns, mode volumes, filling factors, radiation losses ... of the whispering-gallery modes of axisymmetric microresonators. The method exploits COMSOL's ability to accept the definition of solutions to Maxwells equations in so-called 'weak form'. As no transverse approximation is imposed, it remains accurate even for so-called quasi-TM and -TE modes of low, finite azimuthal mode order, as are relevant to applications in non-linear/quantum optics. The method's utility is exemplified by simulating various microresonators in the form of dielectric toroids and disks.

Paper Details

Date Published: 14 February 2007
PDF: 12 pages
Proc. SPIE 6452, Laser Resonators and Beam Control IX, 64520J (14 February 2007); doi: 10.1117/12.714954
Show Author Affiliations
Mark Oxborrow, National Physical Lab. (United Kingdom)

Published in SPIE Proceedings Vol. 6452:
Laser Resonators and Beam Control IX
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko, Editor(s)

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