Fabrication and dual-wavelength characterization of a binary mixture of light-responsive polymeric nanocapsules

Two different types of azo dye-doped liquid crystal mixtures were separately nano-confined and characterized and then dispersed in the same host matrix to enhance the wavelength tunability of the laser-induced transparency of the fabricated polymeric thin film nanocomposites. The obtained results in...

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Bibliographic Details
Published inOptical materials express Vol. 11; no. 6; p. 1791
Main Authors Sharifimehr, Mohammad Reza, Mohajerani, Ezeddin
Format Journal Article
LanguageEnglish
Published Washington Optical Society of America 01.06.2021
Subjects
Azo dyes
Binary mixtures
Liquid crystals
Nanocomposites
Polymer films
Thin films
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Summary:Two different types of azo dye-doped liquid crystal mixtures were separately nano-confined and characterized and then dispersed in the same host matrix to enhance the wavelength tunability of the laser-induced transparency of the fabricated polymeric thin film nanocomposites. The obtained results indicated that the transmitted intensity can be controlled separately by applying dual-wavelength pump lasers irradiation based-on reorientation of liquid crystal mesogens followed by trans-cis photoisomerization of the different azo dye dopants inside the core of the polymeric nanocapsules. Since the fabricated thin films qualify the demand for improvement of laser-induced tunability, it is feasible to use the introduced nanocomposite as a smart light-responsive thin film layer that can be widely implemented in all-optical tunable nanophotonics.
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ISSN:2159-3930
2159-3930
DOI:10.1364/OME.427988