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Proceedings Article

3D beam shaping using diffractive optical elements

[+] Author Affiliations
Zsolt J. Laczik

Univ. of Oxford (United Kingdom)

Proc. SPIE 4770, Laser Beam Shaping III, 104 (October 1, 2002); doi:10.1117/12.457401
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From Conference Volume 4770

  • Laser Beam Shaping III
  • Fred M. Dickey; Scott C. Holswade; David L. Shealy
  • Seattle, WA | July 07, 2002

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.

© (2002) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Zsolt J. Laczik
"3D beam shaping using diffractive optical elements", Proc. SPIE 4770, Laser Beam Shaping III, 104 (October 1, 2002); doi:10.1117/12.457401; http://dx.doi.org/10.1117/12.457401


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