Phase problems in optical imaging

2017, Volume 18, Issue 9

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Frontiers of Information Technology & Electronic Engineering >> 2017, Volume 18, Issue 9 doi: 10.1631/FITEE.1700298

Phase problems in optical imaging

. Shanghai Institute of Optics and FineMechanics, Chinese Academy of Sciences, Shanghai 201800, China.. University of the Chinese Academyof Sciences, Beijing 100049, China

Available online: 2018-01-18

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Abstract

Because the phase contains more information about the fieldcompared to the amplitude, measurement of the phase is encounteredin many branches of modern science and engineering. Direct measurementof the phase is difficult in the visible regime of the electromagneticwave. One must employ computational techniques to calculate the phasefrom the captured intensity. In this paper, we provide a review ofour recent work on iterative phase retrieval techniques and theirapplications in optical imaging.

Keywords

Phase retrieval ; Phase imaging ; Computational imaging ; Gerchberg-Saxton algorithm ; Optical encryption ; Computer-generated hologram

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