Reflective grating interferometer: a folded reversal and shearing wave-front interferometer

Applied Optics
Pietro FerraroGiovanni Pierattini

Abstract

The reflecting grating interferometer (RGI) is a folded and reversal wave-front interferometer sensitive only to asymmetrical aberrations such as third-order coma. The RGI can isolate and evaluate coma both in nearly collimated and in noncollimated beams. We propose a RGI with a different optical configuration that includes a lateral shearing in addition to folding and reversal operations. With lateral shear, the RGI also becomes sensitive to other terms of third-order aberrations such as defocusing, astigmatism, and spherical aberration. Optical path difference equations for interpreting interferograms and numerical simulations are presented to show how the interferometer works in the shearing configuration. Its potential applications are described and discussed.

References

Aug 1, 1997·Applied Optics·H Schreiber, J Schwider
Mar 6, 2008·Applied Optics·K MatsudaC J Sheppard
Mar 8, 2008·Applied Optics·S De NicolaG Pierattini
Mar 8, 2008·Applied Optics·C Elster, I Weingärtner
Mar 18, 2008·Applied Optics·P FerraroG Pierattini
Mar 18, 2008·Applied Optics·P E MurphyD T Moore
Mar 21, 2008·Applied Optics·G PaezG Garcia Torales
Jun 1, 1995·Applied Optics·R S SirohiT H Barnes
Aug 1, 1996·Applied Optics·M ServinJ L Marroquin

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Citations

May 5, 2009·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Yi-Dong LiuXiaoqing Qi
Apr 8, 2006·Optics Letters·Massimo Santarsiero, Riccardo Borghi

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