title: Modal properties and thermal behaviors of high quality factor quasi-photonic crystal microcavity.
abstract: We investigate the variations of modal properties of 12-fold quasi-photonic 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.
authors: Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan, ROC. ricky.eo94g@nctu.edu.tw
authors: Tsan-Wen
authors: TW
authors: Lu
authors: Po-Tsung
authors: PT
authors: Lee
authors: Chung-Chuan
authors: CC
authors: Tseng
authors: Yi-Yu
authors: YY
authors: Tsai
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D003460:Crystallization; D004867:Equipment Design; D019544:Equipment Failure Analysis; D020342:Finite Element Analysis; D054023:Lasers, Semiconductor; D008027:Light; D008962:Models, Theoretical; D055095:Optics and Photonics / Q000295:instrumentation*; D017785:Photons; D011786:Quality Control; D012542:Scattering, Radiation; D013696:Temperature