Reflective grating interferometer in a noncollimated configuration

被引：0

作者：

Ferraro, Pietro ^{[1
,2
]}

De Nicola, Sergio ^{[1
]}

Finizio, Andrea ^{[1
]}

Pierattini, Giovanni ^{[1
]}

机构：

[1] Ist. Cibernetica Cons. Naz. Ric., via Toiano 6, 80072 Arco Felice (Naples), Italy

[2] Inst. Nazionale di Ottica Appicata, Sez. di Napoli, Consiglio Nazionale delle Ricerche, via Toiano 6, 80072 Arco Felice (Naples), Italy

来源：

Applied Optics | 2000年 / 39卷 / 13期

关键词：

Algorithms - Charge coupled devices - Diffraction gratings - Fast Fourier transforms - Optical systems - Phase modulation;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A third-order aberration analysis for a reflective grating interferometer (RGI) is developed for a noncollimated configuration. In such a configuration the RGI is still a folded and reversing interferometer that is sensitive only to coma aberration, as it is in the collimated configuration. However, for an unaberrated input beam converging on a plane grating, the reflective grating of the interferometer introduces self-aberrations. Consequently, a nonnull fringe pattern is obtained. Nevertheless, a RGI in the noncollimated configuration has the potential to be applied for isolating and measuring coma, and a possible configuration for this application is proposed. As an example of the application, the coma of a large mirror could be isolated and measured by use of a converged configuration to avoid the main limitation in using the RGI in a configuration with a nearly collimated beam. © 2000 Optical Society of America.

引用

页码：2116 / 2121