High-Frequency Fiber-Optic Ultrasonic Sensor Using Air Micro-Bubble for Imaging of Seismic Physical Models. - Tingting Gang; Manli Hu; Qiangzhou Rong; Xueguang Qiao; Lei Liang; Nan Liu; Rongxin Tong; Xiaobo Liu; Ce Bian (Sensors, 2016)