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Proceedings Paper

The phase slit: a new laser component
Author(s): Nicolas Passilly; Laurence Mechin; Chantal Gunther; Kamel Ait-Ameur
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Paper Abstract

We present the promising properties of a very simple binary Diffractive Optical element which is a phase slit. The latter is made up of two plates of glass in which a phase step has been produced with ion-etching equipment. The two phase steps are set parallel and are able to slide each on the other so that the width of the phase shifting zone is continuously adjustable. The adjustable phase slit has been used for 1-D laser beam tailoring in which the key parameters that govern the shape of the far-field intensity distribution is the phase step height and the ratio of incident beam and slit widths. The phase slit is able to convert a Gaussian beam into a super-Gaussian or a hollow profile having a central depression whose depth can be continuously adjusted.

Paper Details

Date Published: 1 September 2004
PDF: 8 pages
Proc. SPIE 5456, Photon Management, (1 September 2004); doi: 10.1117/12.545101
Show Author Affiliations
Nicolas Passilly, CIRIL, CNRS, and ENSICAEN (France)
Laurence Mechin, ENSICAEN (France)
Chantal Gunther, ENSICAEN (France)
Kamel Ait-Ameur, CIRIL, CNRS, and ENSICAEN (United States)

Published in SPIE Proceedings Vol. 5456:
Photon Management
Frank Wyrowski, Editor(s)

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