Observation of intense second harmonic generation from MoS2 atomic crystals

Leandro M. Malard, Thonimar V. Alencar, Ana Paula M. Barboza, Kin Fai Mak, Ana M. De Paula

Research output: Contribution to journalArticlepeer-review

582 Scopus citations


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 opportunities for studying the nonlinear optical properties in these two-dimensional crystals.

Original languageEnglish (US)
Article number201401
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number20
StatePublished - May 13 2013

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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