Determination of the waist location for the Gaussian beam based on second harmonic generation of monolayer MoS2

摘要：

　　The waist location of the Gaussian beam was determined based on nonlinear responses of monolayer MoS2 on a SiO2/Si substrate.Monolayer MoS2 was characterized by the Raman spectroscopy,whose nonlinear spectrum was measured and whose second harmonic generation(SHG)was detected obviously.While monolayer MoS2 was moved along z axis,its SHG intensity decreased after increasing and the location with maximum SHG was the Gaussian beam waist location.The change of the SHG intensity at the two sides of the beam waist was symmetrical.Our finding is beneficial to the calculation of the waist radius and the optical property research of MoS2 and some electromagnetic materials furtherly.

作者: Jianhua Zeng Shanyu Du Zhiwen Sang Shan Chang Penghao He Qiu Tu

作者单位: School of Physics and Electronic Information,Shangrao Normal University,Shangrao,China

会议类型: 国际会议

会议名称: The 2nd International Symposium on Application of Materials Science and Energy Materials (SAMSE 2018) 第二届材料科学应用与能源材料国际研讨会2018年

会议地点: 上海

会议语种:英文

页码: 1-7

在线出版日期: 2018-12-17（万方平台首次上网日期，不代表论文的发表时间）