title: Simple direct extraction of unknown phase shift and wavefront reconstruction in generalized phase-shifting interferometry: algorithm and experiments.
abstract: An algorithm to extract the arbitrary unknown phase shift and then reconstruct the complex object wave in generalized phase-shifting interferometry (GPSI) without the iteration process and measurement of object wave intensity is proposed. This method can be used for GPSI of any frame number >or=2. Both computer simulations with smooth and diffusing object surfaces and optical experiments have verified the effectiveness of this method over a wide range of phase shifts with very satisfactory results.
authors.affiliation: Department of Optics, Shandong University, Jinan 250100, China.
authors.forename: X F
authors.initials: XF
authors.lastname: Xu
authors.forename: L Z
authors.initials: LZ
authors.lastname: Cai
authors.forename: Y R
authors.initials: YR
authors.lastname: Wang
authors.forename: X F
authors.initials: XF
authors.lastname: Meng
authors.forename: W J
authors.initials: WJ
authors.lastname: Sun
authors.forename: H
authors.initials: H
authors.lastname: Zhang
authors.forename: X C
authors.initials: XC
authors.lastname: Cheng
authors.forename: G Y
authors.initials: GY
authors.lastname: Dong
authors.forename: X X
authors.initials: XX
authors.lastname: Shen