High-Q microcavities realized in a circular photonic crystal slab
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
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.
microcavity, photonic crystal, finite-difference time-domain method, channel drop filter, wave-guide, resonant frequencies, quality factors, cavities, design, nanocavity, emission, defect, modes
IdentifiersURN: urn:nbn:se:kth:diva-15332DOI: 10.1016/j.photonics.2005.09.001ISI: 000236935600013ScopusID: 2-s2.0-28244444905OAI: oai:DiVA.org:kth-15332DiVA: diva2:333373
QC 20100525 QC 201110122010-08-052010-08-052011-10-12Bibliographically approved