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Proceedings Paper

Diffractive optical element for Zernike decomposition
Author(s): Yonggang Ha; Dazun Zhao; Yongtian Wang; Victor V. Kotlyar; Svetlana N. Khonina; Victor A. Soifer
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Paper 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.

Paper Details

Date Published: 5 August 1998
PDF: 7 pages
Proc. SPIE 3557, Current Developments in Optical Elements and Manufacturing, (5 August 1998); doi: 10.1117/12.318300
Show Author Affiliations
Yonggang Ha, Beijing Institute of Technology (United States)
Dazun Zhao, Beijing Institute of Technology (China)
Yongtian Wang, Beijing Institute of Technology (China)
Victor V. Kotlyar, Image Processing Systems Institute (Russia)
Svetlana N. Khonina, Image Processing Systems Institute (Russia)
Victor A. Soifer, Image Processing Systems Institute (Russia)

Published in SPIE Proceedings Vol. 3557:
Current Developments in Optical Elements and Manufacturing
Qiming Xin; Robert E. Parks, Editor(s)

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