@inproceedings{dc89422887b048a9bb7dbef2532a28a7,
title = "Imaging the crystal structure of few-layer two-dimensional crystals by optical nonlinearity",
abstract = "We report the observation of second harmonic generation (SHG) from odd-layer MoS2 atomic crystal. In contrast, no SHG is observed for samples with even layer numbers due to the restoration of perfect inversion symmetry. Moreover, the SHG intensity is found to directly reflect the underlying 3-fold rotation symmetry of the crystal, which provides a powerful method for optical imaging of the material crystal structure with sub-micron resolution.",
author = "Malard, {Leandro M.} and Alencar, {Thonimar V.} and Barboza, {Ana Paula M.} and Mak, {Kin Fai} and {De Paula}, {Ana M.}",
year = "2013",
doi = "10.1364/cleo_at.2013.jw2a.05",
language = "English (US)",
isbn = "9781557529725",
series = "2013 Conference on Lasers and Electro-Optics, CLEO 2013",
publisher = "IEEE Computer Society",
booktitle = "2013 Conference on Lasers and Electro-Optics, CLEO 2013",
address = "United States",
note = "2013 Conference on Lasers and Electro-Optics, CLEO 2013 ; Conference date: 09-06-2013 Through 14-06-2013",
}