High-Speed Imaging of Second-Harmonic Generation in MoS2 Bilayer under Femtosecond Laser Ablation
We report an in situ characterization of transition-metal dichalcogenide (TMD) monolayers
and twisted bilayers using a high-speed second-harmonic generation (SHG) imaging
technique. High-frequency laser modulation and galvano scanning in the SHG imaging
enabled a rapid identification of the crystallinity in the TMD, including the orientation and
homogeneity with a speed of 1 frame/s. For a twisted bilayer MoS2, we studied the SHG
peak intensity and angles as a function of the twist angle under a strong interlayer coupling …
and twisted bilayers using a high-speed second-harmonic generation (SHG) imaging
technique. High-frequency laser modulation and galvano scanning in the SHG imaging
enabled a rapid identification of the crystallinity in the TMD, including the orientation and
homogeneity with a speed of 1 frame/s. For a twisted bilayer MoS2, we studied the SHG
peak intensity and angles as a function of the twist angle under a strong interlayer coupling …
[PDF][PDF] High-Speed Imaging of Second-Harmonic Generation in MoS2 Bilayer under Femtosecond Laser Ablation. Nanomaterials 2021, 11, 1786
We report an in situ characterization of transition-metal dichalcogenide (TMD) monolayers
and twisted bilayers using a high-speed second-harmonic generation (SHG) imaging
technique. Highfrequency laser modulation and galvano scanning in the SHG imaging
enabled a rapid identification of the crystallinity in the TMD, including the orientation and
homogeneity with a speed of 1 frame/s. For a twisted bilayer MoS2, we studied the SHG
peak intensity and angles as a function of the twist angle under a strong interlayer coupling …
and twisted bilayers using a high-speed second-harmonic generation (SHG) imaging
technique. Highfrequency laser modulation and galvano scanning in the SHG imaging
enabled a rapid identification of the crystallinity in the TMD, including the orientation and
homogeneity with a speed of 1 frame/s. For a twisted bilayer MoS2, we studied the SHG
peak intensity and angles as a function of the twist angle under a strong interlayer coupling …
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