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High-Q microcavities in 2D photonic crystal slabs studied by FDTD techniques and Pade approximation
KTH, School of Information and Communication Technology (ICT), Microelectronics and Information Technology, IMIT.
KTH, School of Information and Communication Technology (ICT), Microelectronics and Information Technology, IMIT.
2005 (English)In: Photonic Crystal Materials and Devices III / [ed] Adibi, A; Lin, SY; Scherer, A, BELLINGHAM, WA: SPIE-INT SOC OPTICAL ENGINEERING , 2005, Vol. 5733, 366-376 p.Conference paper, Published paper (Refereed)
Abstract [en]

A series of microcavities in 2D hexagonal lattice photonic crystal slabs (PCS's) are studied. A combination of FDTD techniques and Pade approximation with Baker's algorithm is used to accurately determine the resonant frequencies and quality factors of the cavity modes simultaneously. Q factor larger than 10(6) is obtained for a one missing hole cavity. Another cavity with smaller and simpler design keeps Q factor larger than 10(5). Microcavities in silicon-on-insulator-type (SOI-type) PCS's are also Studied. Simulations show that Q factors of cavities in SOI-type PCS's are much smaller than those in the membrane PCS's. Deep etching of air holes is still required to obtain relatively high Q cavities in SOI-type PCS's.

Place, publisher, year, edition, pages
BELLINGHAM, WA: SPIE-INT SOC OPTICAL ENGINEERING , 2005. Vol. 5733, 366-376 p.
Series
PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE), ISSN 0277-786X ; 5733
Keyword [en]
microcavities; photonic crystals; quality factor
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-43012DOI: 10.1117/12.589579ISI: 000229438000039Scopus ID: 2-s2.0-21244470005ISBN: 0-8194-5707-8 (print)OAI: oai:DiVA.org:kth-43012DiVA: diva2:447708
Conference
Conference on Photonic Crystal Materials and Devices III. San Jose, CA. JAN 24-27, 2005
Note
QC 20111013Available from: 2011-10-13 Created: 2011-10-13 Last updated: 2011-10-13Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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