Abstract

We describe a technique for a phase-stepping interferometer based on programmable binary phase holograms, particularly useful for optical testing of aspheric or free-form surfaces. It is well-known that binary holograms can be used to generate reference surfaces for interferometry, but a major problem is that cross talk from higher diffraction orders and aliasing can reduce the fidelity of the system. Here, we propose a new encoding technique which improves the accuracy of the technique and demonstrate its implementation using a binary liquid crystal spatial light modulator.

© 2011 Optical Society of America

Traceable interferometry using binary reconfigurable holograms

M. T. Cashmore, S. R. G. Hall, and G. D. Love
Appl. Opt. 53(24) 5353-5358 (2014)

Suppression of undesired diffraction orders of binary phase holograms

Christian Maurer, Andreas Schwaighofer, Alexander Jesacher, Stefan Bernet, and Monika Ritsch-Marte
Appl. Opt. 47(22) 3994-3998 (2008)

Viewing-zone enlargement method for sampled hologram that uses high-order diffraction

Tomoyuki Mishina, Makoto Okui, and Fumio Okano
Appl. Opt. 41(8) 1489-1499 (2002)

Hologram interferometry without a reference beam

P. Hariharan
Opt. Lett. 2(5) 122-124 (1978)

Wave-front phase measurements of high-order harmonic beams by use of point-diffraction interferometry

D. G. Lee, J. J. Park, J. H. Sung, and C. H. Nam
Opt. Lett. 28(6) 480-482 (2003)