摘要 We describe a method of measuring spatiotemporal (ST) structure and covariance functions of the phase fluctuations in a collimated light beam propagated through a region of...
Absolute surface metrology by differencing spatially shifted maps from a phase-shifting interferometer
摘要Surface measurements of precision optics are commonly made with commercially available phase-shifting Fizeau interferometers that provide data relative to flat or spherical reference...
Entanglement-Enhanced Measurement of a Completely Unknown Phase
作者Berry, Dominic W; Xiang, Guo-Yong; Higgins, Brendon L; Wiseman, Howard M; Pryde, Geoff J
摘要 We demonstrate a method for achieving phase measurements with accuracy beyond the standard quantum limit using entangled states. A sophisticated feedback scheme means that no initial...
Image-Based Measurement of Phase Transfer Function
发布于Digital Image Processing and Analysis (DIPA) 2010 paper: DMD1
OSA Technical Digest (CD)
作者 Bhakta, Vikrant R; Somayaji, Manjunath; Christensen, Marc P
摘要 A method for measuring the Phase Transfer Function (PTF) from a high-contrast edge image is proposed and the advantages of utilizing the knowledge of PTF in computational, sparse...
Slope measurement of a phase object using a polarizing phase-shifting high-frequency Ronchi grating interferometer
摘要An interferometric method to measure the slope of phase objects is presented. The analysis was performed by implementing a polarizing phase-shifting cyclic shear interferometer.
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