標題: Octagonal quasi-photonic crystal single-defect microcavity with whispering gallery mode and condensed device size
作者: Lee, Po-Tsung
Lu, Tsan-Wen
Tsai, Feng-Mao
光電工程學系
Department of Photonics
關鍵字: microcavity;quasi-photonic crystal (QPC);semiconductor lasers
公開日期: 1-May-2007
摘要: We propose a new single-defect microcavity which supports well-confined whispering gallery mode in octagonal quasi-photonic crystals (OQPC) by shifting the eight nearest air holes around the cavity. Lasing action is observed and compared with the calculated results obtained using the finite-difference time-domain method. We also investigate the threshold dependence on the number of lattice periods of this OQPC microcavity and compare it with triangular lattice photonic crystal (PC) microcavity with similar cavity size. The OQPC microcavity exhibits only a 36% increase of threshold when the number of lattice periods decreases from eight to four, which is more advantageous than the triangular lattice PC microcavity for the shrinkage of device size.
URI: http://dx.doi.org/10.1109/LPT.2007.895054
http://hdl.handle.net/11536/10869
ISSN: 1041-1135
DOI: 10.1109/LPT.2007.895054
期刊: IEEE PHOTONICS TECHNOLOGY LETTERS
Volume: 19
Issue: 9-12
起始頁: 710
結束頁: 712
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