標題: Modal properties and thermal behaviors of high quality factor quasi-photonic crystal microcavity with different central post sizes
作者: Lu, Tsan-Wen
Lee, Po-Tsung
Tseng, Chung-Chuan
Tsai, Yi-Yu
光電工程學系
Department of Photonics
公開日期: 18-Aug-2008
摘要: We investigate the variations of modal properties of 12-fold quasiphotonic crystal microcavities sustaining whispering-gallery (WG) mode with different central post sizes both in simulations and experiments. We realize our design by a series of dry- and wet-etching processes. WG mode lasing actions are obtained with high quality (Q) factor of 8,400 from microcavity with effective post size 420 nm in diameter. Loss and thermal behaviors are analyzed by measured Q factors, thresholds, and rolling-off effects from light-in light-out curves of microcavities with increased post size. By finite-element simulations, we also address the heat sink improvement due to presence of larger central post that is observed in measurements.
URI: http://dx.doi.org/10.1364/OE.16.012591
http://hdl.handle.net/11536/8458
ISSN: 1094-4087
DOI: 10.1364/OE.16.012591
期刊: OPTICS EXPRESS
Volume: 16
Issue: 17
起始頁: 12591
結束頁: 12598
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