A5102765776- Orbital Angular Momentum in Optics
- Near-Field Optical Microscopy
- Vitamin D Research Studies
- Plasmonic and Surface Plasmon Research
- Photonic and Optical Devices
- Metamaterials and Metasurfaces Applications
- Liver Disease Diagnosis and Treatment
- Pancreatitis Pathology and Treatment
Wuhan Hankou Hospital
2023
The limits on the numerical aperture and diameter of optical elements restrict propagation distance a Bessel beam, resulting in finite depth focus. In this paper, method is proposed to elongate focal by splicing beam with circular Airy which respectively excited left- right-circularly polarized light birefringent dielectric metasurface. Simulation shows that spliced at wavelength 532 nm 2.56 times original. lateral resolution satisfies Rayleigh criterion, spot remains consistent. This scheme...
Purpose: Vitamin D deficiency was thought to be associated with insulin resistance and metabolic-associated fatty liver disease (MAFLD). The aim of this study investigate the relationship between triglyceride-glucose (TyG) index, a useful surrogate biomarker resistance, vitamin status in patients MAFLD. Patients Methods: A total 566 MAFLD were included retrospective cross-sectional study. Clinical characteristics compared participants without deficiency. association TyG index serum...
Complete 2π cycling of a phase around singularity leads to rapid variation in the nearby zones and forms sharp local k -vector peak. In this paper, intensity distribution spatial domain is transformed into wave vector domain, we prove that peak generated at point minimum light field intensity. The sharper when closer singularity. can be manipulated by controlling optical A metalens designed generate peaks for continuous wavelengths linearly shift positions these with incident wavelength....