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Proceedings Paper

Ray targets for geometric optical design of rectangular top hats
Author(s): Daniel M. Brown
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Paper Abstract

Circular gaussian-to-supergaussian beam shapers can easily be designed with ray tracing lens design software that provides access to the merit function. Noncircular top hats or supergaussian have traditionally used iterative back-propagation methods, such as Gershberg-Saxon routines for generating the phase function of the shaper. This paper presents a simple method to design rectangular top-hat beam shapers with ray tracing software by proper generation of the ray targets and selection of the diffractive element coefficients to vary under optimization. The design method is much quicker than previously used back-propagation algorithms.

Paper Details

Date Published: 3 November 2003
PDF: 12 pages
Proc. SPIE 5175, Laser Beam Shaping IV, (3 November 2003); doi: 10.1117/12.505304
Show Author Affiliations
Daniel M. Brown, Optosensors Technology, Inc. (United States)

Published in SPIE Proceedings Vol. 5175:
Laser Beam Shaping IV
Fred M. Dickey; David L. Shealy, Editor(s)

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