Nonlinear Double-arm Optical Tweezers for Controlling 3D Microspheres

In this paper, a new nonlinear double-arm optical tweezer combining Mach-Zenhder interferometer, objective lens and organic dye layer is proposed. Based on the ray-optical and wave optical approximations, the expression describing the separation of two trap centers and laser intensity distribution is derived. The obtained results show that the separation between two trap centers, the laser intensity distribution, trap region's area and optical trap efficiency can be controlled by tuning laser power. The proposed model is seen to be a double-arm optical tweezer for controlling 3D microsphere by optical method.

Controllable synthesis of flower-like MoSe2 3D microspheres for highly efficient visible-light photocatalytic degradation of nitro-aromatic explosives

The nitro-aromatic explosives of NB, PNP and 2,4-DNP (40 mg L−1) could be completely degraded by MoSe2 3D microspheres for 3.5 h, 1.5 h and 2.5 h, under visible light irradiation.

Real 3D microsphere lasers by femtosecond laser processing

Real 3D microspheres are fabricated using femtosecond laser processing and might be applicable for use as single-mode microlasers with controlled resonance wavelengths.

Hierarchically assembled microspheres consisting of nanosheets of highly exposed (001)-facets TiO2 for dye-sensitized solar cells

Mono-dispersed 2D nanosheets of 3D microspheres nanostructure was synthesized. It shows highly exposed (001)-facets (ca. 82%) and high surface area (112.2 m2 g−1). 11.13%-efficient DSSC is obtained with TiO2 microspheres working electrode.