Ferroelectric Nematic Liquid Crystals Showing High Birefringence [PDF]
Advanced ScienceHigh birefringence nematic liquid crystals are particularly demanded for adaptive optics applications in the infrared spectrum because it enable a thinner cell gap for achieving fast response time and improved diffraction efficiency.
Yaohao Song +5 more
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High Birefringence D-Shaped Germanium-Doped Photonic Crystal Fiber Sensor [PDF]
Micromachines, 2022 In this work, a surface plasmon resonance (SPR) sensor based on a D-shaped germanium-doped photonic crystal fiber (PCF) is proposed. The finite element method (FEM) is introduced to analyze the structure parameters, such as germanium-doped concentration,
Qianhe Zhao +5 more
doaj +3 more sources
High Birefringence Liquid Crystals [PDF]
Crystals, 2013 Liquid crystals, compounds and mixtures with positive dielectric anisotropies are reviewed. The mesogenic properties and physical chemical properties (viscosity, birefringence, refractive indices, dielectric anisotropy and elastic constants) of compounds
Jakub Herman +2 more
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A high birefringence liquid crystal for lenses with large aperture. [PDF]
Sci Rep, 2022 This work presents the application of an experimental nematic liquid crystal (LC) mixture (1929) in a large aperture lens. The LC material is composed of terphenyl and biphenyl derivatives compounds with an isothiocyanate terminal group and fluorinated ...
Bennis N +8 more
europepmc +2 more sources
Fluorination Improves the Electro-Optical Properties of Benzoxazole-Terminated Liquid Crystals in High Birefringence Liquid Crystal Mixtures: Experimental and Theoretical Investigations [PDF]
Molecules, 2023 Aromatic heterocyclic liquid crystal (LC) materials have received much attention from LC chemists for their high birefringence and large dielectric anisotropy, yet few have reported their properties in LC mixtures.
Ran Chen +4 more
doaj +2 more sources
Hollow-Core Negative Curvature Fiber with High Birefringence for Low Refractive Index Sensing Based on Surface Plasmon Resonance Effect. [PDF]
Sensors (Basel), 2020 In this paper, a hollow-core negative curvature fiber (HC-NCF) with high birefringence is proposed for low refractive index (RI) sensing based on surface plasmon resonance effect.
Qiu S +11 more
europepmc +2 more sources
Numerical analysis of photonic crystal fiber of ultra-high birefringence and high nonlinearity. [PDF]
Sci Rep, 2020 A numerical analysis of a hexagonal PCF structure with four circular air hole rings around the core has been presented in this paper. By utilizing a full vectorial finite element method with perfectly matched layers, propagation properties such as ...
Agbemabiese PA, Akowuah EK.
europepmc +2 more sources
Results in Physics, 2021 A novel hybrid hollow-core polarization-maintaining fiber is proposed by combining the photonic bandgap mechanism and anti-resonant effect. High birefringence can be achieved by introducing a pair of negative curvature anti-resonant layers into the air ...
Yuru Guo +3 more
doaj +2 more sources
PCF Based Sensor with High Sensitivity, High Birefringence and Low Confinement Losses for Liquid Analyte Sensing Applications [PDF]
Sensors, 2015 In this paper, we report a design of high sensitivity Photonic Crystal Fiber (PCF) sensor with high birefringence and low confinement losses for liquid analyte sensing applications.
Huseyin Ademgil, Shyqyri Haxha
doaj +5 more sources
A High-Birefringence Microfiber Sagnac-Interferometer Biosensor Based on the Vernier Effect. [PDF]
Sensors (Basel), 2018 We propose a high-sensitive Sagnac-interferometer biosensor based on theVernier effect (VE) with a high-birefringence microfiber. The sensitivity enhancement is achieved by utilizing two cascaded Sagnac interferometers.
Wang XZ, Wang Q.
europepmc +2 more sources