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High-Q microcavities realized in a circular photonic crystal slab
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
2005 (English)In: Photonics and Nanostructures-Fundamentals and Applications, ISSN 1569-4410, Vol. 3, no 2-3, 134-138 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2005. Vol. 3, no 2-3, 134-138 p.
Keyword [en]
microcavity, photonic crystal, finite-difference time-domain method, channel drop filter, wave-guide, resonant frequencies, quality factors, cavities, design, nanocavity, emission, defect, modes
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-15332DOI: 10.1016/j.photonics.2005.09.001ISI: 000236935600013Scopus ID: 2-s2.0-28244444905OAI: oai:DiVA.org:kth-15332DiVA: diva2:333373
Note
QC 20100525 QC 20111012Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2011-10-12Bibliographically approved

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