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Proceedings Paper

Characterization of second-order nonlinear optical properties of two-dimensional transition metal dichalcogenides (Conference Presentation)
Author(s): William T. Murray; Ana Laura-Elias; Kazunori Fujisawa; Michael Lucking; Ethan Kahn; Yimin Ding; Humberto Terrones; Mauricio Terrones; Xingjie Ni; Zhiwen Liu

Paper Abstract

Two-dimensional transition metal dichalcogenides (TMD), such as WS2 and MoS2, have been shown to exhibit large second order optical nonlinearity due to their non-centrosymmetric crystalline symmetry in few odd- and mono-layers, and resonance enhancement. Here we study the second-order nonlinear susceptibility of 2D TMDs through second harmonic generation (SHG) and sum frequency generation (SFG). Using a wavelength-tunable femtosecond laser, we can characterize SHG of TMDs to obtain the second-order nonlinear susceptibility at multiple wavelengths. Along with the experimental studies, theoretical investigation of the second-order nonlinear susceptibility is also performed. With this we explore the estimation of the second-order nonlinear susceptibility of 2D TMD layered materials based on their first-order susceptibility through the experimental and theoretical verification of Miller’s Rule for these materials. Additionally, we characterize the second-order nonlinear susceptibility of 2D TMD alloys through the SFG spectroscopy.

Paper Details

Date Published: 17 September 2018
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Proc. SPIE 10753, Ultrafast Nonlinear Imaging and Spectroscopy VI, 107530M (17 September 2018); doi: 10.1117/12.2322374
Show Author Affiliations
William T. Murray, The Pennsylvania State Univ. (United States)
Ana Laura-Elias, The Pennsylvania State Univ. (United States)
Kazunori Fujisawa, The Pennsylvania State Univ. (United States)
Michael Lucking, Rensselaer Polytechnic Institute (United States)
Ethan Kahn, The Pennsylvania State Univ. (United States)
Yimin Ding, The Pennsylvania State Univ. (United States)
Humberto Terrones, Rensselaer Polytechnic Institute (United States)
Mauricio Terrones, The Pennsylvania State Univ. (United States)
Xingjie Ni, The Pennsylvania State Univ. (United States)
Zhiwen Liu, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 10753:
Ultrafast Nonlinear Imaging and Spectroscopy VI
Zhiwen Liu; Demetri Psaltis; Kebin Shi, Editor(s)

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