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Liquid Crystals as an Active Medium: Novel Possibilities in Plasmonics

Roberto Caputo
  • Corresponding author
  • Department of Physics and Centre of Excellence for the Study of Innovative Functional Materials University of Calabria,CNR-IPCF UOS Cosenza 87036 Arcavacata di Rende (CS), Italy
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Giovanna Palermo
  • Corresponding author
  • Department of Physics and Centre of Excellence for the Study of Innovative Functional Materials University of Calabria,CNR-IPCF UOS Cosenza 87036 Arcavacata di Rende (CS), Italy
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Melissa Infusino
  • Corresponding author
  • Department of Physics and Centre of Excellence for the Study of Innovative Functional Materials University of Calabria,CNR-IPCF UOS Cosenza 87036 Arcavacata di Rende (CS), Italy
  • Colegio de Ciencias e Ingeniería, Universidad San Francisco de Quito, Quito, Ecuador
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Luciano De Sio
  • Corresponding author
  • Department of Physics and Centre of Excellence for the Study of Innovative Functional Materials University of Calabria,CNR-IPCF UOS Cosenza 87036 Arcavacata di Rende (CS), Italy
  • Beam Engineering for Advanced Measurements Company, Winter Park, Florida 32789, USA
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2015-03-25 | DOI: https://doi.org/10.1515/nansp-2015-0003


The peculiar properties of Liquid Crystals (LCs) foster new possibilities in plasmonics. The combination of the intrinsic tunability of LCs with the plasmonic properties of metallic nanoparticles (NPs) provides novel and intriguing features of systems commonly identified as active plasmonics. Being LCs, one of the media whose refractive index can be controlled through the application of external stimuli, they represent a convenient host for enabling plasmonic tunability. On the other hand, the localized plasmonic resonance, typical of NPs, can strongly influence and control the behaviour of LCs. In this paper, we overview several systems of NPs combined with LCs arranged in different configurations. The properties of the resulting systems suggest novel, intriguing outcomes in both fundamental and applied research.

Keywords: Active Plasmonics; Liquid Crystals; Metamaterials


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About the article

Received: 2014-07-03

Accepted: 2015-01-20

Published Online: 2015-03-25

Citation Information: Nanospectroscopy, Volume 1, Issue 1, ISSN (Online) 2300-3537, DOI: https://doi.org/10.1515/nansp-2015-0003.

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© 2015 Roberto Caputo et al.. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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