Radiation-pressure-driven mechanical oscillations in silica microdisk resonators on chip  

作　　者：WANG GuanZhong ZHAO MingMing MA JiYang LI GuanYu CHEN Yuan JIANG XiaoShun XIAO Min 

机构地区：[1]National Laboratory of Solid State Microstructures and College of Engineering and Applied Sciences, Nanjing University [2]Department of Physics, University of Arkansas

出　　处：《Science China(Physics,Mechanics & Astronomy)》2015年第5期60-63,共4页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Basic Research Program of China(Grant Nos.2012CB921804 and 2011CBA00205);the National Natural Science Foundation of China(Grant Nos.61435007,11104137 and 11321063)

摘　　要：We demonstrate radiation-pressure-driven mechanical oscillations from high optical quality factor silica microdisk resonators on chip. Mechanical quality factors of 3520 in air and 12540 in vacuum for the fundamental radial breathing modes are obtained from 73 μm-diarneter silica microdisks with mechanical frequencies of -51 MHz. The measured mechanical oscillation threshold powers for the input light are determined to be 62.5 μW in air and down to 26.6 μW in vacuum.We demonstrate radiation-pressure-driven mechanical oscillations from high optical quality factor silica microdisk resonators on chip. Mechanical quality factors of 3520 in air and 12540 in vacuum for the fundamental radial breathing modes are obtained from 73 μm-diameter silica microdisks with mechanical frequencies of ~51 MHz. The measured mechanical oscillation threshold powers for the input light are determined to be 62.5 μW in air and down to 26.6 μW in vacuum.

关 键 词：MICROCAVITY OPTOMECHANICS oscillators 

分 类 号：TN629.1[电子电信—电路与系统]