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Proceedings Paper

Three-dimensional beam shaping using diffractive optical elements
Author(s): Zsolt John Laczik
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Paper Abstract

Conventionally laser beam shaping problems are defined by the required intensity and/or phase distribution in a single 2-D output plane, although recently there have also been examples for beam shaping solutions where the system output had to satisfy constraints in a small number of axially separated planes. For a number of application areas it is beneficial to be able to work with beams that have a particular intensity distribution that is specified in a 3-D volume. Laser material processing, optical microscopy and laser trapping (optical tweezers) are a few examples for these. We will discuss how diffractive optical elements can be used to generate beams with prescribed 3-D intensity profiles, with particular emphasis on techniques for the design of such diffractive optics. Practical examples will be given for the implementation of the diffractive optical elements using programmable spatial light modulators and for the application of the 3-D beams.

Paper Details

Date Published: 24 October 2002
PDF: 8 pages
Proc. SPIE 4770, Laser Beam Shaping III, (24 October 2002); doi: 10.1117/12.457401
Show Author Affiliations
Zsolt John Laczik, Univ. of Oxford (United Kingdom)

Published in SPIE Proceedings Vol. 4770:
Laser Beam Shaping III
Fred M. Dickey; Scott C. Holswade; David L. Shealy, Editor(s)

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