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Proceedings Paper

Optical coatings for improving laser beam quality
Author(s): Angela M. Piegari; Salvatore Scaglione; Gabriele Emiliani
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Paper Abstract

Thin film coatings having a radially variable reflectance with a circular symmetry are used for obtaining diffraction limited laser beams from unstable resonators. Different approaches are used for the design of such coatings with a consequent different final coating structure that contains one or more profiled thickness layers. Some design methods are discussed with reference to reflected intensity and phase profiles and the fabrication techniques for coatings at different wavelengths are illustrated.

Paper Details

Date Published: 4 March 1993
PDF: 11 pages
Proc. SPIE 1782, Thin Films for Optical Systems, (4 March 1993); doi: 10.1117/12.141057
Show Author Affiliations
Angela M. Piegari, ENEA Thin Film Lab. (Italy)
Salvatore Scaglione, ENEA Thin Film Lab. (Italy)
Gabriele Emiliani, ENEA Thin Film Lab. (Italy)

Published in SPIE Proceedings Vol. 1782:
Thin Films for Optical Systems
Karl H. Guenther, Editor(s)

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