Shiyi Mei
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View article: End-to-end deep learning for superoscillatory subtraction imaging
End-to-end deep learning for superoscillatory subtraction imaging Open
Breaking the diffraction limit in optical imaging is crucial for resolving subwavelength details in a wide range of applications, where superoscillatory imaging and subtraction imaging are two common strategies for surpassing conventional …
View article: Surpassing the diffraction limit via a vectorial Debye integral neural network
Surpassing the diffraction limit via a vectorial Debye integral neural network Open
Breaking the diffraction limit has been a key challenge in optical engineering and super-resolution imaging. In this work, we utilize a vectorial Debye integral neural network to design sub-diffraction focusing fields for high-NA objective…
View article: Superoscillation focusing of high-order cylindrical-vector beams
Superoscillation focusing of high-order cylindrical-vector beams Open
Traditional superoscillation focusing (SOF) typically requires complex optimization of the incident light field. These complexities may limit the practical application of superoscillation. High-order radially polarized Laguerre-Gaussian be…
View article: Gap-Enhanced V-Shaped Sers Substrate for Multiplex Trace Dye Pollutants Detection in River Water
Gap-Enhanced V-Shaped Sers Substrate for Multiplex Trace Dye Pollutants Detection in River Water Open
View article: Superoscillation focusing of high-order cylindrical-vector beams
Superoscillation focusing of high-order cylindrical-vector beams Open
Traditional superoscillation focusing typically requires complex optimization of the incident light field. These complexities may limit the practical application of superoscillation. High-order radially polarized Laguerre-Gaussian beams in…
View article: Vision transformer empowered physics-driven deep learning for omnidirectional three-dimensional holography
Vision transformer empowered physics-driven deep learning for omnidirectional three-dimensional holography Open
The inter-plane crosstalk and limited axial resolution are two key points that hinder the performance of three-dimensional (3D) holograms. The state-of-the-art methods rely on increasing the orthogonality of the cross-sections of a 3D obje…
View article: Phyllotaxis-inspired nanosieves with multiplexed orbital angular momentum
Phyllotaxis-inspired nanosieves with multiplexed orbital angular momentum Open
Nanophotonic platforms such as metasurfaces, achieving arbitrary phase profiles within ultrathin thickness, emerge as miniaturized, ultracompact and kaleidoscopic optical vortex generators. However, it is often required to segment or inter…
View article: Phyllotaxis-inspired Nanosieves with Multiplexed Orbital Angular Momentum
Phyllotaxis-inspired Nanosieves with Multiplexed Orbital Angular Momentum Open
Nanophotonic platforms such as metasurfaces, achieving arbitrary phase profiles within ultrathin thickness, emerge as miniaturized, ultracompact and kaleidoscopic optical vortex generators. However, it is often required to segment or inter…
View article: Dielectric multi-momentum meta-transformer in the visible
Dielectric multi-momentum meta-transformer in the visible Open
View article: Spiniform phase-encoded metagratings entangling arbitrary rational-order orbital angular momentum
Spiniform phase-encoded metagratings entangling arbitrary rational-order orbital angular momentum Open
View article: Reconfigurable optical manipulation by phase change material waveguides
Reconfigurable optical manipulation by phase change material waveguides Open
We proposed a multifunctional optical manipulation platform enabling pushing/pulling and trapping based on phase change material waveguides.
View article: Flat Helical Nanosieves
Flat Helical Nanosieves Open
Compact and miniaturized devices with flexible functionalities are always highly demanded in optical integrated systems. Plasmonic nanosieve has been successfully harnessed as an ultrathin flat platform for complex manipulation of light, i…
View article: Hybrid bilayer plasmonic metasurface efficiently manipulates visible light
Hybrid bilayer plasmonic metasurface efficiently manipulates visible light Open
Two highly coupled plasmonic metasurfaces exhibit much higher conversion efficiency and extinction ratio than individual ones.
View article: Optically secured information retrieval using two authenticated phase-only masks
Optically secured information retrieval using two authenticated phase-only masks Open
View article: Broadband spin‐controlled focusing via logarithmic‐spiral nanoslits of varying width
Broadband spin‐controlled focusing via logarithmic‐spiral nanoslits of varying width Open
This work presents analytical, numerical and experimental demonstrations of light diffracted through a logarithmic spiral (LS) nanoslit, which forms a type of switchable and focus‐tunable structure. Owing to a strong dependence on the inci…
View article: Continuously Shaping Orbital Angular Momentum with an Analog Optical Vortex Transmitter
Continuously Shaping Orbital Angular Momentum with an Analog Optical Vortex Transmitter Open
Dynamic generation of obitial angular momentum (OAM) of light has enabled complex manipulation of micro-particles, high-dimension quantum entanglement and optical communication. We report an analog vortex transmitter made of one bilaterall…