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Proceedings Paper

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

Paper Details

Date Published: 10 September 2004
PDF: 9 pages
Proc. SPIE 5457, Optical Metrology in Production Engineering, (10 September 2004); doi: 10.1117/12.545284
Show Author Affiliations
Pietro Ferraro, Istituto Nazionale di Ottica Applicata (Italy)
Giuseppe Coppola, Istituto per la Microelettronica e Microsistemi, CNR (Italy)
Domenico Alfieri, Istituto Nazionale di Ottica Applicata (Italy)
Sergio De Nicola, Istituto di Cibernetica, CNR (Italy)
Simonetta Grilli, Istituto Nazionale di Ottica Applicata (Italy)
Andrea Finizio, Istituto di Cibernetica, CNR (Italy)
Giovanni Pierattini, Istituto di Cibernetica, CNR (Italy)


Published in SPIE Proceedings Vol. 5457:
Optical Metrology in Production Engineering
Wolfgang Osten; Mitsuo Takeda, Editor(s)

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