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International Journal of Optics
Volume 2013 (2013), Article ID 287506, 3 pages
http://dx.doi.org/10.1155/2013/287506
Research Article

Laser Coherence Meter Based on Nanostructured Liquid Crystals

Wroclaw University of Technology, Institute of Physical and Theoretical Chemistry, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland

Received 29 April 2013; Revised 19 July 2013; Accepted 23 July 2013

Academic Editor: Gang-Ding Peng

Copyright © 2013 A. Anczykowska et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We present the method for coherence length measurement using coherence meter based on hybrid liquid crystal structures doped with gold nanoparticles. The results indicate that the method is able to determine the coherence length of coherent light sources with precision of 0.01 m at wavelength range from 200 to 800 nm for wide range of initial beam powers starting from 1 mW. Given the increasing use of laser technology in industry, military, or medicine, our research may open up a possible route for the development of improved techniques of coherent diagnostic light sources.