Diffractive optical element for Zernike decomposition

Yonggang Ha*, Dazun Zhao, Yongtian Wang, V. V. Kotlyar, S. N. Khonina, V. A. Soifer

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

23 Citations (Scopus)

Abstract

A Zernike polynomial can be used to describe not only the phase of a wavefront, but also its entire complex amplitude. For the latter case, a diffractive optical element (DOE) is proposed to decompose the incident wavefront into a set of diffraction orders with their amplitudes proportional to the coefficients of the Zernike polynomial. A 25-channel Zernike decomposer is designed by means of an iterative method, and its operation simulated. When the amplitude distribution of the incident wavefront is known, its shape can be uniquely determined from the intensity measured on the output plane of the DOE. An exemplary algorithm for the phase retrieval is also presented. Such a DOE can be very useful in the rapid analysis of wavefronts.

Original languageEnglish
Pages (from-to)191-197
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3557
DOIs
Publication statusPublished - 1998
EventProceedings of the 1998 Conference on Current Developments in Optical Elements and Manufacturing - Beijing, China
Duration: 16 Sept 199818 Sept 1998

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