The Design of Computer-Generated Holograms for Testing Unsymmetrical Optical Surfaces

Author

Xu, Yingchao ; Lin, Hongyi ; Zhu, Wenzhang ; Zhang, Ying ; Zhang, Xin

Author_Institution

Dept. of Math. & Phys., Xiamen Univ. of Technol., Xiamen, China

fYear

2012

fDate

21-23 May 2012

Firstpage

1

Lastpage

3

Abstract

It is a technical difficulty to test the unsymmtrical optical surfaces in non-contact methods. But we can do it using computer-generated holograms (CGH). The principle and design of the CGH have been discussed in the paper. Take the cubic suface as an example, The order separation of the CGH is analyzed theoretically and the simulation result of the order separation is given in the paper. We develop the binary process of the continuous CGH phase function and get the sample of the amplitude CGH. A CGH for testing a cubic phase plate with duty cycle 0.5 is fabricated by using e-beam lithographic techniques. In this situation, the contrast of the interference fringe pattern can achieve a level of 99.4% by calculation.

Keywords

computer-generated holography; light interference; optical variables measurement; spatial variables measurement; computer-generated holograms; cubic phase plate; cubic suface; e-beam lithographic techniques; interference fringe pattern; noncontact methods; phase function; unsymmetrical optical surfaces testing; Chromium; Graphics; Interference; Optical device fabrication; Optical distortion; Optical surface waves; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics and Optoelectronics (SOPO), 2012 Symposium on

Conference_Location

Shanghai

ISSN

2156-8464

Print_ISBN

978-1-4577-0909-8

Type

conf

DOI

10.1109/SOPO.2012.6270995

Filename

6270995