title: UW Imaging of Seismic-Physical-Models in Air Using Fiber-Optic Fabry-Perot Interferometer.
abstract: A fiber-optic Fabry-Perot interferometer (FPI) has been proposed and demonstrated for the ultrasound wave (UW) imaging of seismic-physical models. The sensor probe comprises a single mode fiber (SMF) that is inserted into a ceramic tube terminated by an ultra-thin gold film. The probe performs with an excellent UW sensitivity thanks to the nanolayer gold film, and thus is capable of detecting a weak UW in air medium. Furthermore, the compact sensor is a symmetrical structure so that it presents a good directionality in the UW detection. The spectral band-side filter technique is used for UW interrogation. After scanning the models using the sensing probe in air, the two-dimensional (2D) images of four physical models are reconstructed.
authors.affiliation: Physics Department, Northwest University, No.229, Taibai Road (North), Xi'an 710069, China. qzrong2010@gmail.com.
authors.forename: Qiangzhou
authors.initials: Q
authors.lastname: Rong
authors.affiliation: Physics Department, Northwest University, No.229, Taibai Road (North), Xi'an 710069, China. 2014112063@stumail.nwu.edu.cn.
authors.forename: Yongxin
authors.initials: Y
authors.lastname: Hao
authors.affiliation: Physics Department, Northwest University, No.229, Taibai Road (North), Xi'an 710069, China. 1995828zhou@163.com.
authors.forename: Ruixiang
authors.initials: R
authors.lastname: Zhou
authors.affiliation: Physics Department, Northwest University, No.229, Taibai Road (North), Xi'an 710069, China. lixunyin@126.com.
authors.forename: Xunli
authors.initials: X
authors.lastname: Yin
authors.affiliation: Physics Department, Northwest University, No.229, Taibai Road (North), Xi'an 710069, China. huahualovesnow@gmail.com.
authors.forename: Zhihua
authors.initials: Z
authors.lastname: Shao
authors.affiliation: Physics Department, Northwest University, No.229, Taibai Road (North), Xi'an 710069, China. lianglei@opt.ac.cn.
authors.forename: Lei
authors.initials: L
authors.lastname: Liang
authors.affiliation: Physics Department, Northwest University, No.229, Taibai Road (North), Xi'an 710069, China. xgqiao@nwu.edu.cn.
authors.forename: Xueguang
authors.initials: X
authors.lastname: Qiao
keywords: Fabry-Perot interferometer; UW imaging; fiber sensor; seismic-physical-model