期刊
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS
卷 3, 期 2-3, 页码 134-138出版社
ELSEVIER
DOI: 10.1016/j.photonics.2005.09.001
关键词
microcavity; photonic crystal; finite-difference time-domain method
A series of microcavities in circular photonic crystal slabs are studied in this paper. It is shown that high quality factors can be obtained for such microcavities. For a cavity with three inner layers of air holes missing, Q factor larger than 105 can be obtained. It is also worth noting there exists resonant modes with high quality factors, even for the defect-free circular photonic crystal slab, due to gradual change of the average effective index. (c) 2005 Elsevier B.V. All rights reserved.
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