Analysis of wavefront errors introduced by encoding computer-generated holograms

Wenrui Cai; Ping Zhou; Chunyu Zhao; James H. Burge

doi:10.1364/AO.52.008324

Analysis of wavefront errors introduced by encoding computer-generated holograms

Wenrui Cai, Ping Zhou, Chunyu Zhao, James H. Burge

Optical Sciences, College of

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

The fabrication of computer-generated holograms (CGH) by e-beam or laser-writing machine specifically requires using polygon segments to approximate the continuously smooth fringe pattern of an ideal CGH. Wavefront phase errors introduced in this process depend on the size of the polygon segments and the shape of the fringes. In this paper, we propose a method for estimating the wavefront error and its spatial frequency, allowing optimization of the polygon sizes for required measurement accuracy. This method is validated with computer simulation and direct measurements from an interferometer.

Original language	English (US)
Pages (from-to)	8324-8331
Number of pages	8
Journal	Applied optics
Volume	52
Issue number	34
DOIs	https://doi.org/10.1364/AO.52.008324
State	Published - Dec 1 2013

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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AU - Zhao, Chunyu

AU - Burge, James H.

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AB - The fabrication of computer-generated holograms (CGH) by e-beam or laser-writing machine specifically requires using polygon segments to approximate the continuously smooth fringe pattern of an ideal CGH. Wavefront phase errors introduced in this process depend on the size of the polygon segments and the shape of the fringes. In this paper, we propose a method for estimating the wavefront error and its spatial frequency, allowing optimization of the polygon sizes for required measurement accuracy. This method is validated with computer simulation and direct measurements from an interferometer.

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Analysis of wavefront errors introduced by encoding computer-generated holograms

Abstract

ASJC Scopus subject areas

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