Optical characterizations of two-dimensional materials using nonlinear optical microscopies of CARS, TPEF, and SHG
Li Rui,
Zhang Yajun,
Xu Xuefeng,
Zhou Yi,
Chen Maodu,
Sun Mengtao
Affiliations
Li Rui
School of Physics, Dalian University of Technology, Dalian 116024, P.R. China
Zhang Yajun
School of Physics, Dalian University of Technology, Dalian 116024, P.R. China
Xu Xuefeng
School of Mathematics and Physics, Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, Center for Green Innovation, University of Science and Technology Beijing, Beijing 100083, P.R. China
Zhou Yi
School of Physics, Dalian University of Technology, Dalian 116024, P.R. China
Chen Maodu
School of Physics, Dalian University of Technology, Dalian 116024, P.R. China
Sun Mengtao
School of Mathematics and Physics, Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, Center for Green Innovation, University of Science and Technology Beijing, Beijing 100083, P.R. China
In this paper, we employ the nonlinear optical microscopies of coherent anti-Stokes Raman scattering spectroscopy, two-photon excitation fluorescence, and second harmonic generation to characterize the properties of two-dimensional (2D) materials. With these nonlinear optical microscopy methods, we can not only clearly observe the surface topography of 2D materials but also reveal the quality of 2D materials. These nonlinear optical microscopies offer great potential for characterization of the properties of 2D materials.
