Modification of Higher Alkanes by Nanoparticles to Control Light Propagation in Tapered Fibers
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TLDR
The doping of higher alkanes with ZnS:Mn nanoparticles is presented to create new types of in-line optical fiber sensors with unique optical properties with high sensitivity and fast response to the change in the applied materials.Abstract:
This study presents the doping of higher alkanes, namely, pentadecane (C15) and hexadecane (C16), with ZnS:Mn nanoparticles to create new types of in-line optical fiber sensors with unique optical properties. In this research, the phenomenon of light beam leakage out of the taper and its interaction with the surrounding materials is described. The fabricated new materials are used as cladding in a tapered optical fiber to make it possible to control the optical light beam. The manufactured sensor shows high sensitivity and fast response to the change in the applied materials. Results are presented for a wide optical range of 1200-1700 nm with the use of a supercontinuum source and an optical spectrum analyzer, as well as for a single wavelength of 800 nm, corresponding to the highest transmitted power. The results present a change in the optical property dependence on the temperature in the cooling and heating process. For all materials, the measurements in a climatic chamber are provided between 0 and 40 °C, corresponding to the phase change of the alkanes from solid to liquid. The addition of nanoparticles to the volume of alkanes is equal to 1 wt%. To avoid a conglomeration of nanoparticles, the anti-agglomeration material, Brij 78 P, is used.read more
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Optical Properties of a Tapered Optical Fiber Coated with Alkanes Doped with Fe3O4 Nanoparticles
Karol A. Stasiewicz,Iwona Jakubowska,Joanna E. Moś,Pawel Marc,Jan Paczesny,Rafał Zbonikowski,Leszek R. Jaroszewicz +6 more
TL;DR: In this paper , a biconical optical fiber taper is used to detect changes of light propagation parameters, especially polarization, obtained by mixing Fe3O4 nanoparticles with hexadecane (higher alkane).
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Temperature-dependent thermal properties of solid/liquid phase change even-numbered n-alkanes: n-Hexadecane, n-octadecane and n-eicosane
TL;DR: In this paper, the thermal conductivity and thermal diffusivity of the solid/liquid phase change linear n-alkanes were measured simultaneously by the transient multi-current hot wire technique at atmospheric pressure in the range 258-348 K. The same set-up was used to measure the liquid and the solid states at different electrical currents.