Next Article in Journal
Indium-Incorporation with InxGa1-xN Layers on GaN-Microdisks by Plasma-Assisted Molecular Beam Epitaxy
Previous Article in Journal
Advanced AlGaAs/GaAs Heterostructures Grown by MOVPE
Previous Article in Special Issue
Liquid Crystal Beam Steering Devices: Principles, Recent Advances, and Future Developments
Article Menu
Issue 6 (June) cover image

Export Article

Open AccessArticle

Research on Optical Properties of Tapered Optical Fibers with Liquid Crystal Cladding Doped with Gold Nanoparticles

1
Institute of Technical Physics, Military University of Technology, 00-908 Warsaw, Poland
2
Institute of Optoelectronics Military University of Technology, 00-908 Warsaw, Poland
*
Author to whom correspondence should be addressed.
Crystals 2019, 9(6), 306; https://doi.org/10.3390/cryst9060306
Received: 15 May 2019 / Revised: 11 June 2019 / Accepted: 12 June 2019 / Published: 14 June 2019
(This article belongs to the Special Issue Liquid Crystal Optical Device)
  |  
PDF [8166 KB, uploaded 26 June 2019]
  |  

Abstract

This paper presents results obtained for biconical tapered fibers surrounded/immersed in liquid crystal mixtures. The phenomenon of light propagating in the whole structure of a tapered fiber allows the creation of a sensor where the tapered region represents a core whereas the surrounding medium becomes a cladding. Created devices are very sensitive to changing refractive index value in a surrounding medium caused by modifying external environmental parameters like temperature, electric or magnetic field. For this reason, the properties of materials used as cladding should be easily modified. In this investigation, cells have been filled with two different nematic liquid crystals given as 1550* and 6CHBT (4-(trans-4-n-hexylcyclohexyl) isothiocyanatobenzoate), as well as with the same mixtures doped with 0.1 wt% gold nanoparticles (AuNPs). Optical spectrum analysis for the wavelength range of 550–1150 nm and time-courses performed for a wavelength of 846 nm at the temperature range of T = 25–40 °C were provided. For all investigations, a steering voltage in the range of 0–200 V which allows establishing the dopes’ influence on transmitted power and time response at different temperatures was applied. View Full-Text
Keywords: liquid crystal; gold nanoparticles; optical fiber device; tapered optical fiber liquid crystal; gold nanoparticles; optical fiber device; tapered optical fiber
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Moś, J.E.; Korec, J.; Stasiewicz, K.A.; Jankiewicz, B.; Bartosewicz, B.; Jaroszewicz, L.R. Research on Optical Properties of Tapered Optical Fibers with Liquid Crystal Cladding Doped with Gold Nanoparticles. Crystals 2019, 9, 306.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Crystals EISSN 2073-4352 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top