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Title: The one-step phase-shifting technique for wave-front interferometry
Authors: Ng, T.W. 
Issue Date: Oct-1996
Citation: Ng, T.W. (1996-10). The one-step phase-shifting technique for wave-front interferometry. Journal of Modern Optics 43 (10) : 2129-2138. ScholarBank@NUS Repository.
Abstract: Hitherto, phase-shifting schemes in wave-front interferometry required a minimum of two precise phase steps in order to derive the phase. This paper outlines and demonstrates a novel technique entailing one precise phase step. Numerical analyses of phase-drift errors indicate that the proposed technique compares favourably with performances of the three- and four-bucket algorithms currently in use. Furthermore, it minimizes the period of computation by necessitating the use of three processing frames.
Source Title: Journal of Modern Optics
ISSN: 09500340
Appears in Collections:Staff Publications

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