Zone Plate Common Path Interferometer for Testing Aspherical Mirror with Large Aperture

Haike GUAN; Masahiro YAMAGUCHI; Nagaaki OHYAMA; Toshio HONDA

doi:10.1007/s10043-995-0055-5

Haike GUAN, Masahiro YAMAGUCHI, Nagaaki OHYAMA, Toshio HONDA

Author information

Keywords: aspherical mirror, large aperture, common path interferometer, caustic waist, computer generated hologram, diffraction efficiency balance, laser writer, phase shifting

JOURNAL FREE ACCESS

1995 Volume 2 Issue 1 Pages 55-58

DOI https://doi.org/10.1007/s10043-995-0055-5

Details

Abstract

A new CGH (computer generated hologram) common path interferometer, which can be used for testing an aspherical mirror with large aperture, is proposed. This interferometer does not have a circle of least confusion, and a spatial filter can be used effectively to stop extraneous lights so that interferograms with good contrast can be obtained. The phase shifting technique can be easily applied to the interferometer. The method of designing and making the CGH zone-plate is described.

Corresponding author

Register with J-STAGE for free!