4.6 Article

Voltage, thermal and magnetic field fiber sensors based on magnetic nanoparticles-doped photonic liquid crystal fibers

Journal

OPTICS EXPRESS
Volume 31, Issue 16, Pages 25372-25384

Publisher

Optica Publishing Group
DOI: 10.1364/OE.492364

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In this article, highly sensitive voltage, thermal and magnetic field fiber sensors were achieved by doping magnetic nanoparticles into E7 liquid crystals filled into photonic crystal fibers (PLCF). The voltage and temperature sensitivity reached 12.598 nm/V and -3.874 nm/°C, respectively. The minimum voltage response time was 48.2 ms. The phase transition temperature Tc of liquid crystal with magnetic dopant was reduced from 60°C to 46°C. The magnetic field sensor based on magnetic nanoparticles-doped PLCF had a sensitivity of 118.2 pm/mT from 400 to 460 mT.
In this article, highly sensitive voltage, thermal and magnetic field fiber sensors were obtained in magnetic nanoparticles-doped E7 liquid crystals filled into photonic crystal fibers (PLCF). The voltage and temperature sensitivity reached at 12.598 nm/V and -3.874 nm/& DEG;C, respectively. The minimum voltage response time is 48.2 ms. The phase transition temperature Tc of liquid crystal with magnetic dopant was reduced from 60 & DEG;C to 46 & DEG;C. The magnetic field sensor based on magnetic nanoparticles-doped PLCF were obtained with sensitivity of 118.2 pm/mT from 400 to 460 mT.

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