Xu Sun, Jianxing Zhao, Yao Zhou, Yinghao Cao, Jianhong Zhou. Dispersion characteristics of optical nonlinearity enhancement of chalcogenide glass Ge28Sb12Se60 film[J]. Infrared and Laser Engineering, 2022, 51(7): 20210609
- Infrared and Laser Engineering
- Vol. 51, Issue 7, 20210609 (2022)
Fig. 1. Sample preparation process
Fig. 2. Diagram of the Z -scan system
Fig. 3. 850 nm Z -scan experiment and fitting results. (a) Sample 1: GSS 50 nm; (b) Sample 2: 20 nm annealed silver structure with 50 nm GSS
Fig. 4. (a) SEM images of silver films at 20 nm; (b) SEM images of silver films annealed at 20 nm
Fig. 5. Transmittance spectra of 50 nm GSS, 20 nm annealed silver structure, 20 nm annealed silver structure and 50 nm GSS sample
Fig. 6. (a) Curves of nonlinear refractive index n 2 changing with wavelength; (b) Curves of nonlinear absorption coefficient versus wavelength
（a）非线性折射率n 2随波长变化曲线；（b）非线性吸收系数
随波长变化曲线
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