title: Oscillating wave displacement sensor using the enhanced Goos-Hänchen effect in a symmetrical metal-cladding optical waveguide.
abstract: An oscillating wave displacement sensor based on the enhanced Goos-Hänchen (G-H) effect in a symmetrical metal-cladding optical waveguide is proposed. Since the detected signal is irrelevant to the power fluctuation of the incident light and the magnitude of the G-H shift is enhanced to hundreds of micrometers, a 40 pm resolution is demonstrated in our experiment without employing any complicated optical equipment and servo techniques.
authors.affiliation: Guided-Wave Photonics Group, State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication Systems, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Tianyi
authors.initials: T
authors.lastname: Yu
authors.forename: Honggen
authors.initials: H
authors.lastname: Li
authors.forename: Zhuangqi
authors.initials: Z
authors.lastname: Cao
authors.forename: Yi
authors.initials: Y
authors.lastname: Wang
authors.forename: Qishun
authors.initials: Q
authors.lastname: Shen
authors.forename: Ying
authors.initials: Y
authors.lastname: He