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arXiv · 1304.4289

Observation of Intense Second Harmonic Generation from MoS$_{2}$ Atomic Crystals

Leandro M. Malard·Thonimar V. Alencar·Ana Paula M. Barboza·Kin Fai Mak·Ana M. de Paula
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Abstract

Since de discovery of graphene, the family of 2-dimensional materials has attracted much recent attention. In this work, the nonlinear optical properties of few-layer MoS2 two-dimensional crystals are studied using femtosecond laser pulses. We observed highly efficient second harmonic generation from the odd-layer crystals, which shows a polarization intensity dependence that directly reveals the underlying symmetry and orientation of the crystal. Additionally, the measured second-order susceptibility spectra provide information about the electronic structure of the material. Our results open up new opportunities for studying the non-linear optical properties in these novel 2D crystals.

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Leandro M. Malard, Thonimar V. Alencar, Ana Paula M. Barboza, Kin Fai Mak, Ana M. de Paula. 2013-04-15. Observation of Intense Second Harmonic Generation from MoS$_{2}$ Atomic Crystals. https://doi.org/10.1103/physrevb.87.201401

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