We experimentally investigate the optomechanical properties of a conventional two-dimensional suspended photonic crystal defect cavity. Particularly, we measure localized mechanical modes in the GHz regime exhibiting high values of the optomechanical vacuum coupling rate exceeding 250 kHz. (C) 2010 Optical Society of America
Jean-Philippe Ansermet, Haiming Yu, Jilei Chen, Jianyu Zhang, Yao Zhang, Song Liu, Wenhao Jiang