Research on the controllable nonlinear laser transmission properties of MoS2 nano-micron film

Abstract

Ultrashort femtosecond pulse laser (pulse duration 2 nano-micron films (thickness 150–200 nm) are prepared by spin-coating method. Optical limiting test results show that for the ultrashort pulse laser, this film shows increasing transparency at low light intensity, while it shows decreasing transparency at a higher light intensity (optical limiting). It is capable of changing the optical limiting threshold by changing the incident wavelength which can be used for transparency enhancement and protection against damage of concentrator solar cells. Using this method to have a commercial GaAs solar cells coated found the conversion efficiency reduction 50%.

Dependence of Nonlinear Optical Response of Anatase TiO 2 on Shape and Excitation Intensity

“…The 𝑍-scan experiment of the pure solvent was also measured, and the results did not show any nonlinear absorption, which indicates that the contribution of the solvent can be negligible. [28] With the variation of intensity, gradual changing processes of NLO absorption were observed. As depicted in Fig.…”