Zijie DAI, Lixing KANG, Cheng GONG, Zheng LIU, Weiwei LIU. Exploration of PtSe2 Thin Film Based on Time-resolved Terahertz Spectroscopy （Invited）[J]. Acta Photonica Sinica, 2021, 50(8): 0850206
- Acta Photonica Sinica
- Vol. 50, Issue 8, 0850206 (2021)
Fig. 1. PtSe2 thin films with different thicknesses fabricated by selenization process
Fig. 2. Characterization of PtSe2 thin film
Fig. 3. Experimental setup of the time-resolved terahertz spectroscopy
Fig. 4. The transmitted THz temporal wave and modulation depth of PtSe2 thin films （S1， S4） under varying pump fluences
Fig. 5. The conductivity of PtSe2 thin film （S1， S2， S3 and S4） and the time-resolved differential transmission measurement （S1 and S4）
Fig. 6. The thickness dependent differential transmission -ΔT /T （@2540 μJ/cm2） of PtSe2 thin films
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Table 1. Bi-exponential decay fitting of 11 nm-PtSe2 （S1） for relaxation time
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