Optical second harmonic generation in thin-films of MoS2

Qingxiong Wu; Tian Jiang; Ke Wei

doi:10.1117/12.2296327

15 November 2017 Optical second harmonic generation in monolayer MoS₂

Qingxiong Wu, Tian Jiang, Ke Wei

Proceedings Volume 10605, LIDAR Imaging Detection and Target Recognition 2017; 1060549 (2017) https://doi.org/10.1117/12.2296327
Event: LIDAR Imaging Detection and Target Recognition 2017, 2017, Changchun, China

Abstract

Our experiment shows that monolayer molybdenum disulfide (ML MoS₂) has big second-order non-linear susceptibility, which allows strong second harmonic generation. As the SHG has relations with the structure of crystal, we can identify the crystal’s orientation by detecting the angle dependency of SHG. We rotate the MoS₂ and find the intensity of SHG has a period of 60° , which follows the symmetry of structure. At last, to detect the integrality of crystal, we perform two SHG mappings.

Citation Download Citation

Qingxiong Wu, Tian Jiang, and Ke Wei "Optical second harmonic generation in monolayer MoS₂", Proc. SPIE 10605, LIDAR Imaging Detection and Target Recognition 2017, 1060549 (15 November 2017); https://doi.org/10.1117/12.2296327

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