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Applied Physics B

, 125:73 | Cite as

Optical nonlinear absorption of a few-layer MoS2 under green femtosecond excitation

  • Dmitry V. KhudyakovEmail author
  • Andrey A. Borodkin
  • Anatoly S. Lobach
  • Danila D. Mazin
  • Sergey K. Vartapetov
Article
  • 67 Downloads

Abstract

The nonlinear optical absorption of aqueous suspension with a few-layer (4–5 layers) molybdenum disulfide (MoS2) was investigated by Z- and P-scan methods using second harmonic generation from Yb-doped femtosecond pulsed laser. Two regions with different nature of the nonlinear absorption were registered when the intensity of the incident radiation increased from low to high values. The 3-level model for one-photon transitions in the few-layer MoS2 was proposed for describing the experimental data. Absorption cross sections and relaxation times for interband and intraband transitions under femtosecond excitation on 514 nm have been estimated.

Notes

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Dmitry V. Khudyakov
    • 1
    Email author
  • Andrey A. Borodkin
    • 1
  • Anatoly S. Lobach
    • 2
  • Danila D. Mazin
    • 1
  • Sergey K. Vartapetov
    • 1
  1. 1.Prokhorov General Physics Institute of the Russian Academy of SciencesMoscowRussian Federation
  2. 2.The Institute of Problems of Chemical Physics RASMoscow RegionRussian Federation

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