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Article
Open AccessObservation of spatiotemporal optical vortices enabled by symmetry-breaking slanted nanograting
Providing additional degrees of freedom to manipulate light, spatiotemporal optical vortex (STOV) beams carrying transverse orbital angular momentum are of fundamental importance for spatiotemporal control of ...
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Article
High-sensitive measurements of refractive-index and magnetic-field based on liquid-infiltrated photonic crystal fiber with an elliptically-shaped core
A high-sensitive refractive index (RI) measuring method is proposed through the combined use of elliptical core photonic crystal fiber (PCF) and Sagnac interferometer. The sensing performance of the designed s...
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Article
High sensitive methane sensor based on twin-core photonic crystal fiber with compound film-coated side-holes
A high-sensitive methane sensor based on a twin-core photonic crystal fiber (PCF) is proposed and analyzed. Two ultra-large side-holes of the PCF are polished and coated with methane-sensitive film to achieve ...