A novel interferometric spectrometer obtained by imaging Talbot effect in digital holography

Pietro Ferraro; Giuseppe Coppola; Domenico Alfieri; Sergio De Nicola; Simonetta Grilli; Andrea Finizio; Giovanni Pierattini

doi:10.1117/12.545284

10 September 2004 A novel interferometric spectrometer obtained by imaging Talbot effect in digital holography

Pietro Ferraro, Giuseppe Coppola, Domenico Alfieri, Sergio De Nicola, Simonetta Grilli, Andrea Finizio, Giovanni Pierattini

Author Affiliations +

Proceedings Volume 5457, Optical Metrology in Production Engineering; (2004) https://doi.org/10.1117/12.545284
Event: Photonics Europe, 2004, Strasbourg, France

Abstract

We present here the observation of the Talbot effect in digital holography (DH). A self-imaging phenomena is observed by reconstructing the amplitude of the object wavefield by using different distances and different illumination wavelengths. The numerical reconstruction allows to determine the complex field amplitude at different wavelengths while maintaining constant the reconstruction distance. We investigate on the possibility to build a spectrometer based on the Talbot effect. In particular, the spectrometer proposed in this work can cover the whole visible spectrum ranging from 350nm to 750nm and, from the FWHM of the spectrograms with a resolution of about 20nm

Citation Download Citation

Pietro Ferraro, Giuseppe Coppola, Domenico Alfieri, Sergio De Nicola, Simonetta Grilli, Andrea Finizio, and Giovanni Pierattini "A novel interferometric spectrometer obtained by imaging Talbot effect in digital holography", Proc. SPIE 5457, Optical Metrology in Production Engineering, (10 September 2004); https://doi.org/10.1117/12.545284

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