Paper Title:
A Study of the Surface Profile Measurement Using a Reference Error Free Interferometer
  Abstract

In this article, a new interferometer which accuracy does not depend on the accuracy of the reference is proposed. This interferometer calculates the surface profile of the measured mirror surface using two steps. At the first step, the interferometer obtains the data concerning the reference and a polarized beam splitter (PBS). The interferometer works as a Mach-Zehnder interferometer. At the second step, since the polarized beam splitter is rotated 90 degree, the measured mirror is lightened by a laser beam. In this step, the interferometer obtains the data concerning the reference, the PBS and the measured mirror. Therefore, the difference between these two results corresponds to the surface profile of the measured mirror and it does not include the data of the reference and the PBS. The principle and the experimental results were described.

  Info
Periodical
Key Engineering Materials (Volumes 381-382)
Edited by
Wei Gao, Yasuhiro Takaya, Yongsheng Gao and Michael Krystek
Pages
279-282
DOI
10.4028/www.scientific.net/KEM.381-382.279
Citation
E. Okuyama, T. Yamasuge, "A Study of the Surface Profile Measurement Using a Reference Error Free Interferometer ", Key Engineering Materials, Vols. 381-382, pp. 279-282, 2008
Online since
June 2008
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Price
$32.00
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