MULTIPLE-BEAM WEDGE-PLATE SHEAR INTERFEROMETER FOR COLLIMATION TESTING

Authors
SENTHILKUMARAN P SRIRAM KV KOTHIYAL MP SIROHI RS
Citation
P. Senthilkumaran et al., MULTIPLE-BEAM WEDGE-PLATE SHEAR INTERFEROMETER FOR COLLIMATION TESTING, Applied optics, 34(7), 1995, pp. 1197-1202
Citations number
8
Categorie Soggetti
Optics
Journal title
Applied optics → ACNP
ISSN journal
00036935
Volume
34
Issue
7
Year of publication
1995
Pages
1197 - 1202
Database
ISI
SICI code
0003-6935(1995)34:7<1197:MWSIFC>2.0.ZU;2-A
Abstract
We describe a modification of the wedge-plate shear interferometer for collimation testing. The surface of the wedge plate is coated to incr ease the reflectivity such that multiple-beam interference takes place resulting in sharp fringes. In addition to sharpening the fringes als o tend to split when the test beam is noncollimated. This splitting ha s been used as a test criterion for collimation testing. Experimental results are presented.