Linear and nonlinear optical properties of Sb-doped GeSe2 thin films*
Zhang Zhen-Yinga), Chen Fena)†, Lu Shun-Binb), Wang Yong-Huia), Shen Xiangc), Dai Shi-Xunc), Nie Qiu-Huac)
       
(a) Schematic diagram of the Z -scan experimental setup. (b) Open-aperture and (c) the division of the closed-aperture measurements by the open-aperture measurements Z -scan curves of Ge–Se–Sb films at 800 nm. The empty symbols represent the experimental data and the solid lines denote fitting curves.