title: Two-step phase demodulation algorithm based on the extreme value of interference.
abstract: Using the maximum and the minimum of interference, a novel two-step phase demodulation algorithm is proposed to perform the phase extraction in phase-shifting interferometry. By means of the simulation calculation and the experimental research, it is proved that both the measured phase and the phase shift with high precision can be obtained in the proposed algorithm.
authors.affiliation: Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510006, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Deng
authors.forename: Hankun
authors.initials: H
authors.lastname: Wang
authors.forename: Fengjie
authors.initials: F
authors.lastname: Zhang
authors.forename: Desi
authors.initials: D
authors.lastname: Zhang
authors.forename: Liyun
authors.initials: L
authors.lastname: Zhong
authors.forename: Xiaoxu
authors.initials: X
authors.lastname: Lu