Computer-Generated Holographic Gratings in Soft Matter
Abstract
Standard multiple-beam holography has been largely used to produce gratings in polymer-liquid crystal composites, like POLICRYPS, H-PDLC gratings and POLIPHEM [1]. In this work we present a different approach to liquid crystalpolymeric grating production, based on the Computer-Generated Holography (CGH). The great advantage of using CGH is that interferometer-based schemes are no longer necessary, avoiding problems related to long term stability of the interference pattern and multi-beam complex optical setup. Moreover, the CGH technique allows a wider choice of pattern designs. In this preliminary work, we obtained promising results, as for instance the patterning of a square-wave refractive index modulation of a LCpolymeric composite, a pattern which is not achievable with standard two-beam holography.
Cite
@article{arxiv.1311.0394,
title = {Computer-Generated Holographic Gratings in Soft Matter},
author = {Gianluigi Zito and Antigone Marino and Bruno Piccirillo and Volodymyr Tkachenko and Enrico Santamato and Giancarlo Abbate},
journal= {arXiv preprint arXiv:1311.0394},
year = {2013}
}
Comments
6 pages, 3 figures