Open AccessEnhanced efficiency of electric field tunability in photonic liquid crystal fibers doped with gold nanoparticles
Author(s) -
Daniel Budaszewski,
Miłosz Chychłowski,
Agata Budaszewska,
Bartosz Bartosewicz,
Bartłomiej J. Jankiewicz,
Tomasz R. Woliński
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.014260
Subject(s) - liquid crystal , materials science , colloidal gold , doping , electric field , photonic crystal fiber , nanoparticle , optics , photonic crystal , optoelectronics , photonics , nanotechnology , wavelength , physics , quantum mechanics
In this paper, we present our recent research results on light propagation in photonic crystal fibers (PCFs) infiltrated with a 6CHBT nematic liquid crystal (LC) doped with 2-nm gold nanoparticles (NPs) with a concentration in the range of 0.01 - 0.5% wt. Electro-optical response times and thermal tuning of the investigated samples have been studied in detail. We have observed up to ~80% decrease of rise times for different concentrations of gold NPs in the LC. Moreover, a significant reduction of the Fréedericksz threshold voltage (up to 60%) has been observed for samples with higher concentrations of 2-nm gold NPs in 6CHBT.