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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 14 — May. 10, 2013
  • pp: 3368–3380

Analysis of the chromaticity of near-field binary beam shapers

Christophe Dorrer  »View Author Affiliations


Applied Optics, Vol. 52, Issue 14, pp. 3368-3380 (2013)
http://dx.doi.org/10.1364/AO.52.003368


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Abstract

The chromatic properties of binary beam shapers inducing a spatially dependent transmission on the near field of an optical source after far-field filtering and imaging are derived. Beam shapers using pixels with two transmission states are highly versatile and have been experimentally realized with distributions of amplitude pixels, phase pixels, or polarization pixels that can be designed using a half-toning algorithm. The amplitude of the shaped beam in an image plane has a precisely controlled continuous profile given by the local density of the two pixel types in the object plane. The wavelength dependence of the field transmission corresponding to the full range of design transmission between 0 and 1 is studied analytically to assess the general performance of the corresponding beam shapers for broadband sources, with an example of a specific 2D transmission profile relevant to laser engineering. Amplitude beam shapers have no significant chromaticity, but have low damage threshold. The high-damage-threshold twisted nematic liquid crystal and phase shapers induce a wavelength-dependent transmission and phase on the shaped beam.

© 2013 Optical Society of America

OCIS Codes
(140.3300) Lasers and laser optics : Laser beam shaping
(160.3710) Materials : Liquid crystals
(230.6120) Optical devices : Spatial light modulators
(320.7160) Ultrafast optics : Ultrafast technology

ToC Category:
Optical Devices

History
Original Manuscript: January 8, 2013
Revised Manuscript: April 5, 2013
Manuscript Accepted: April 8, 2013
Published: May 8, 2013

Citation
Christophe Dorrer, "Analysis of the chromaticity of near-field binary beam shapers," Appl. Opt. 52, 3368-3380 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-14-3368

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