Boyang Nan, Ruijin Hong, Chunxian Tao, Qi Wang, Hui Lin, Zhaoxia Han, Dawei Zhang. Thickness dependency of nonlinear optical properties in ITO/Sn composite films[J]. Chinese Optics Letters, 2023, 21(8): 081902
- Chinese Optics Letters
- Vol. 21, Issue 8, 081902 (2023)
Fig. 1. (a) Flow chart of sample preparation and (b) single-beam Z-scan setup.
Fig. 2. XRD plots of (a) ITO, Sn nanofilm and (b) ITO/Sn samples synthesized according to different relative thickness ratios.
Fig. 3. AFM 3D images of (a) ITO 100 nm, (b) Sn 100 nm, (c) ITO 70 nm/Sn 30 nm, (d) ITO 50 nm/Sn 50 nm, and (e) ITO 30 nm/Sn 70 nm samples. (f) RMS value change of samples and (g) average diameter of samples.
Fig. 4. Optical (a) transmittance and (b) absorption profiles of ITO, Sn, and ITO/Sn films.
Fig. 5. (a), (b) Open aperture Z-scan measurements of ITO, Sn, and ITO/Sn composite films with different relative thickness ratios.
Fig. 6. Fitting of nonlinear absorption values (β) of monolayer ITO, Sn, and ITO/Sn composite films.
Fig. 7. FDTD simulated electric field distributions for (a) ITO, (b) Sn, and (c) ITO/Sn films.
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