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Proceedings Paper

Near-Index-Match refractive beam shapers
Author(s): Steven M. Ebstein
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Paper Abstract

A method for designing and fabricating aspherical transmissive beam shaping elements for the visible and near-IR is described. Both rotationally symmetric and non-symmetric aspheres can be fabricated as Near-Index-MatchTM optics. The aspherical surface is machined or mastered using a conventional NC machine. A sandwich of two transmissive materials is formed, with the refractive phase the product of the surface relief and the index difference. Both far-field (Dickey, Romero, and Holswade) beam shapers and near-field (Rhodes and Shealy) beam shapers can be realized, as well as two-element systems with phase correction of the shaped beam. Design methodologies and results are presented.

Paper Details

Date Published: 30 October 2001
PDF: 7 pages
Proc. SPIE 4443, Laser Beam Shaping II, (30 October 2001); doi: 10.1117/12.446738
Show Author Affiliations
Steven M. Ebstein, Lexitek, Inc. (United States)

Published in SPIE Proceedings Vol. 4443:
Laser Beam Shaping II
Fred M. Dickey; Scott C. Holswade; David L. Shealy, Editor(s)

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