4 papers
Extreme Energy Concentration of Band-Limited Superoscillatory Vortices for Efficient Optical Micromanipulation
Chengda Song, Jing He, Xi Xie +4
The Abbe diffraction limit, tied to the fundamental spatial bandwidth constraint imposed by any physical aperture, remains the primary barrier to achieving ultimate far-field optic…
Machine learning of the Ising model on a spherical Fibonacci lattice
Zheng Zhou, Chen-Hui Song, Xu-Yang Hou +1
We investigate the Ising model on a spherical surface, utilizing a Fibonacci lattice to approximate uniform coverage. This setup poses challenges in achieving consistent lattice di…
Subdiffraction confinement and non-diffractive propagation of optical Stokes skyrmions enabled by a super-oscillatory metalens
Jing He, Chengda Song, Wei Li +2
Optical Stokes skyrmions have garnered extensive interest due to their intrinsic topological robustness and potential in informatics.However, most research remains confined to para…
Generic full-vector angular spectrum method for calculating diffraction of arbitrary electromagnetic fields
Chengda Song, Jing He, Guanghui Yuan
Numerous vector angular spectrum methods have been presented to model the vectorial nature of diffractive electromagnetic field, facilitating optical field engineering in polarizat…