Abstract

The use of multiple-beam interferometry makes it possible to observe very small deviations in the flatness of optical surfaces. A method is described which reduces the contour interval between multiple beam fringes to between 1/20 and 1/100 wavelength. This method has been applied to the critical examination of a quantity of Fabry-Perot plates for use in continuous helium-neon optical masers.

© 1961 Optical Society of America

Holographic Two-Beam Interferometry Using Multiple-Reflected Light Beams

T. Tsuruta and Y. Itoh
Appl. Opt. 8(10) 2033-2036 (1969)

Long-Path Multiple-Wavelength Multiple-Beam Interference Fringes*

D. R. Herriott
J. Opt. Soc. Am. 56(6) 719-721 (1966)

Photodetecting Instrument with Flat Wavelength Response*

Paul M. McPherson, Nathan Sclar, Bernard R. Linden, Willem Brouwer, and A. T. Stair
J. Opt. Soc. Am. 51(7) 767-773 (1961)

Interferometrically Controlled Hydraulic Wavelength Drive*

George A. Ameer and William M. Benesch
J. Opt. Soc. Am. 51(3) 303-309 (1961)

Attainment of High-Resolution Gratings by Ruling under Interferometric Control*

George W. Stroke
J. Opt. Soc. Am. 51(12) 1321-1339 (1961)