Characterization of second-order nonlinear optical properties of two-dimensional transition metal dichalcogenides (Conference Presentation)

William T. Murray; Ana Laura-Elias; Kazunori Fujisawa; Michael Lucking; Ethan Kahn; Yimin Ding; Humberto Terrones; Mauricio Terrones; Xingjie Ni; Zhiwen Liu

doi:10.1117/12.2322374

17 September 2018 Characterization of second-order nonlinear optical properties of two-dimensional transition metal dichalcogenides (Conference Presentation)

William T. Murray, Ana Laura-Elias, Kazunori Fujisawa, Michael Lucking, Ethan Kahn, Yimin Ding, Humberto Terrones, Mauricio Terrones, Xingjie Ni, Zhiwen Liu

Author Affiliations +

Proceedings Volume 10753, Ultrafast Nonlinear Imaging and Spectroscopy VI; 107530M (2018) https://doi.org/10.1117/12.2322374
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

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.

Conference Presentation

Citation Download Citation

William T. Murray, Ana Laura-Elias, Kazunori Fujisawa, Michael Lucking, Ethan Kahn, Yimin Ding, Humberto Terrones, Mauricio Terrones, Xingjie Ni, and Zhiwen Liu "Characterization of second-order nonlinear optical properties of two-dimensional transition metal dichalcogenides (Conference Presentation)", Proc. SPIE 10753, Ultrafast Nonlinear Imaging and Spectroscopy VI, 107530M (17 September 2018); https://doi.org/10.1117/12.2322374

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KEYWORDS

Transition metals

Second-harmonic generation

Crystals

Femtosecond phenomena

Harmonic generation

Nonlinear crystals

Nonlinear optics

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