Int. J. Mol. Sci. 2013, 14(10), 19932-19950; doi:10.3390/ijms141019932
Review

Nematicons and Their Electro-Optic Control: Light Localization and Signal Readdressing via Reorientation in Liquid Crystals

Nonlinear Optics and OptoElectronics Lab (NooEL), University of Rome "Roma Tre", Via della Vasca Navale 84, Rome 00146, Italy
* Author to whom correspondence should be addressed.
Received: 30 August 2013; in revised form: 16 September 2013 / Accepted: 22 September 2013 / Published: 8 October 2013
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Abstract: Liquid crystals in the nematic phase exhibit substantial reorientation when the molecules are driven by electric fields of any frequencies. Exploiting such a response at optical frequencies, self-focusing supports transverse localization of light and the propagation of self-confined beams and waveguides, namely “nematicons”. Nematicons can guide other light signals and interact with inhomogeneities and other beams. Moreover, they can be effectively deviated by using the electro-optic response of the medium, leading to several strategies for voltage-controlled reconfiguration of light-induced guided-wave circuits and signal readdressing. Hereby, we outline the main features of nematicons and review the outstanding progress achieved in the last twelve years on beam self-trapping and electro-optic readdressing.
Keywords: reorientation; liquid crystals; nonlinear optics; nonlocality; solitons; self-focusing; beam steering

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MDPI and ACS Style

Piccardi, A.; Alberucci, A.; Assanto, G. Nematicons and Their Electro-Optic Control: Light Localization and Signal Readdressing via Reorientation in Liquid Crystals. Int. J. Mol. Sci. 2013, 14, 19932-19950.

AMA Style

Piccardi A, Alberucci A, Assanto G. Nematicons and Their Electro-Optic Control: Light Localization and Signal Readdressing via Reorientation in Liquid Crystals. International Journal of Molecular Sciences. 2013; 14(10):19932-19950.

Chicago/Turabian Style

Piccardi, Armando; Alberucci, Alessandro; Assanto, Gaetano. 2013. "Nematicons and Their Electro-Optic Control: Light Localization and Signal Readdressing via Reorientation in Liquid Crystals." Int. J. Mol. Sci. 14, no. 10: 19932-19950.

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