Constructing high-density hotspots is of crucial importance in surface enhanced Raman scattering (SERS). Kuanguo Li’s research team present a large-area and broadband porous Au–Ag hybrid nanoparticle array which was fabricated by an ultra-thin alumina mas...
As a key component of electron multiplier device, a microchannel plate (MCP) can be applied in many scientific fields. Pure aluminum oxide (Al2O3) as secondary electron emission (SEE) layer were deposited in the pores of MCP via atomic layer deposition (ALD...
Yishan Wang’s research team demonstrate a compact and stable room-temperature multiwavelength erbium doped fiber laser by employing 45 degrees tilted fiber gratings based on an all-fiber polarization interference filter. Benefiting from the filter, the cha...
Zhi Yang’s research team experimentally study a laser master oscillator power amplifier (MOPA) system consisting of a fiber amplifier and a two-stage Yb:YAG single crystal fiber (SCF). The nonlinear stimulated Raman scattering (SRS) is avoided by limiting ...
Yongjun Xie’s research team present a method for the fast design of a smooth freeform lens to tailor a collimated light beam with an arbitrary contour. This method begins by calculating an initial surface based on a simplified ray mapping. Then the surface...