Acta Photonica Sinica, Volume. 50, Issue 8, 0850206(2021)
Exploration of PtSe2 Thin Film Based on Time-resolved Terahertz Spectroscopy （Invited）
Figures & Tables(7)
Fig. 1. PtSe2 thin films with different thicknesses fabricated by selenization process
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 -Δ
Table 1. Bi-exponential decay fitting of 11 nm-PtSe2 （S1） for relaxation time
View tableView in ArticleTable 1. Bi-exponential decay fitting of 11 nm-PtSe2 （S1） for relaxation time
Pump power/（μJ·cm-2） τ1/ps τ2/ps Correlation coefficient R2 635 2.15±0.19 11.01±2.84 0.98 1 270 1.99±0.14 12.88±1.79 0.99 2 540 2.12±0.18 11.16±1.23 0.99
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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
Paper Information
Category: Special Issue for Ultrafast Optics
Received: Jun. 2, 2021
Accepted: Jul. 9, 2021
Published Online: Sep. 1, 2021
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