Search Results - Xiong Wang
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Physical Mechanism and Response Characteristics of Unsaturated Optical Stopping-Based Amorphous Arsenic Sulfide Thin-Film Waveguides
Published 2019-01-01Get full textOptical stopping can serve as a light-controlled solution to implementing photonic components. In contrast to saturated optical stopping that provides enough excited electrons to entirely absorb signal lights, unsaturated optical stopping introduces a photon competition mechanism for signal lights a...
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Broadband High-Efficiency Electromagnetic Orbital Angular Momentum Beam Generation Based on a Dielectric Metasurface
Published 2020-01-01Get full textElectromagnetic waves carrying orbital angular momentum (OAM) have motivated a wealth of applications. Achromatic or broadband OAM beams are preferred in many applications and have been extensively explored in previous research endeavors. In view of the low efficiency of the previous reported broadb...
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The impact of extreme air pollution on preterm birth in twin pregnancies: identifying susceptible exposure windows
Published 2025-12-01Get full textBackground Accelerated industrialization globally has intensified air pollution, but the susceptibility periods for extreme air pollution in twin pregnancies remain undefined.Methods This study investigated the association between extreme air pollution exposure and preterm birth risk in twin pregnan...
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