TITLE

Photonic crystal heteroslab-edge microcavity with high quality factor surface mode for index sensing

AUTHOR(S)
Lu, Tsan-Wen; Hsiao, Yi-Hua; Ho, Wei-De; Lee, Po-Tsung
PUB. DATE
April 2009
SOURCE
Applied Physics Letters;4/6/2009, Vol. 94 Issue 14, p141110
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this report, we propose a photonic crystal heteroslab-edge microcavity design for optical index sensing, where the high quality (Q) surface mode is confined by mode-gap effect. By optimizing the barrier region of the microcavity, high Q factor of 6.6×105 is obtained in simulations. Lasing actions with high Q factor and low threshold of 6400 and 0.55 mW are obtained from the real devices. High index sensing response and small detectable index variation of 625 nm per refractive index unit and 3.6×10-6 are obtained in simulations.
ACCESSION #
37580309

 

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