The spatial resolution of conventional optics, which is need for non-destructively trapping of
microobjects, is limited by diffraction to nearly half the wavelength. Despite this limitation, the …

Here, we propose the concept of an “optical vacuum cleaner” for optomechanical
manipulation of nanoparticles. We utilize a dielectric cuboid to generate an optical gradient …

Spatial resolution of conventional optics, which is necessary for nondestructive trapping of
microobjects, is limited by diffraction to a value equal to half of the radiation wavelength …

The single defect structure of a two-dimensional graded index photonic crystal (PC) is
investigated. By introduction of an air hole located at center of the photonic crystal-based …

Based on the evanescent waves theory, the formation condition and propagation
mechanism of evanescent waves in one-dimensional periodic photonic crystal are studied …

An efficient conformal locally one-dimensional finite-difference time-domain (LOD-CFDTD)
method is presented for solving two-dimensional (2D) electromagnetic (EM) scattering …

To deal with the staircase approximation problem in the standard finite-difference time-
domain (FDTD) simulation, the two-dimensional boundary condition equations (BCE) …

This study numerically demonstrates the effects of partial band gaps on the negative
refraction properties of sonic crystal. The partial band gap appearing at the second band …

基于Mie 散射理论, 推导, 建立了适用于非长波极限的二维光子晶体中横电模的等效介质理论.
随后利用该理论探讨了二维光子晶体中横电模的负折射特性和零折射特性 …

The model of using colloidal magnetic fluid to build tunable negative-index photonic crystal
is established. The effective permittivity ɛ e and permeability μ e of the two-dimensional …