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Proceedings Paper

Testing of off-axis parabola by holo-shear lens
Author(s): Chandra Shakher; K. Matsuda; Koji Tenjimbayashi
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Paper Abstract

To test quality of the wavefronts number of arrangements are discussed in literature. Out of these the lateral shearing interferometers using diffracting elements are stable and simple devices. Lateral shear obtained by J.C. Waynt, rotation of two gratings by Hariharan et al and Rimmer and Waynt over come some of the drawbacks suffered by Ronchi interferometers. It has already been demonstrated that the two slightly displaced off axis zone plates acts exactly like a double frequency grating. This paper describes the holo-shear lens made on dichromatic gelatin for testing of off axis parabola. Joenathal et al investigate lateral shear interferometry with holo shear lens.

Paper Details

Date Published: 6 September 1999
PDF: 5 pages
Proc. SPIE 3739, Optical Fabrication and Testing, (6 September 1999); doi: 10.1117/12.360164
Show Author Affiliations
Chandra Shakher, Indian Institute of Technology/Delhi (India)
K. Matsuda, Mechanical Engineering Lab. (Japan)
Koji Tenjimbayashi, Mechanical Engineering Lab. (Japan)


Published in SPIE Proceedings Vol. 3739:
Optical Fabrication and Testing
Roland Geyl; Jonathan Maxwell, Editor(s)

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