Reflective grating interferometer in a noncollimated configuration
Anno: 2000
Autori: Ferraro P., De Nicola S., Finizio A., Pierattini G.
Affiliazione autori: Istituto di Cibernetica del CNR , Arco Felice, Via Toiano 6, 800072. Italy;
Istituto nazionale di Ottica Applucata, Sez. di Napoli, Napoli, Italy
Abstract: 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. (C) 2000 Optical Society of America.
Giornale/Rivista: APPLIED OPTICS
Volume: 39 (13) Da Pagina: 2116 A: 2121
Parole chiavi: reflective grating interferometerDOI: 10.1364/AO.39.002116Citazioni: 8dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-12Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui