This paper discusses light scattering by a small spherical particle with low dissipation rate and radial anisotropy in optical and magnetic properties, according to the extension of the Mie theory toâ€¦ (More)

The method of force tracing is employed to examine the optomechanical interaction between two and four Luneburg lenses. Using a simplified analytical model, as well as a realistic numerical model,â€¦ (More)

Two novel classes of spherical invisibility cloaks based on nonlinear transformation have been studied. The cloaking characteristics are presented by segmenting the nonlinear transformation basedâ€¦ (More)

Usually a light beam pushes a particle when the photons act upon it. We investigate the optical forces by nonparaxial gradientless beams and find that the forces can drag suitable particles all theâ€¦ (More)

Light carries momenta that can be transferred to objects. Relying on gradient forces created by structured light, one can trap and move microscopic particles. Aside from the conservative action ofâ€¦ (More)

It has long been conjectured that isotropic radiation by a simple coherent source is impossible due to changes in polarization. Though hypothetical, the isotropic source is usually taken as theâ€¦ (More)

1. The intensity and phase of light passing through a single belt with its radius r0 and width âˆ†r. In Fig. 1, we show the sketch of the diffraction of a belt with radius r0 and width âˆ†r. The angleâ€¦ (More)

A Bessel beam without an axial gradient can exert a pulling force on an object [A. Novitsky, C.â€‰W. Qiu, and H. Wang, Phys. Rev. Lett. 107, 203601 (2011)]. However, it cannot be called a "tractorâ€¦ (More)

Magnetoelectrically chiral media are studied in this paper as potential materials to realize double negative materials and negative refractive characteristics. The behaviors of the negativeâ€¦ (More)