E-resources
Peer reviewed
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Khudyakov, Dmitry V.; Borodkin, Andrey A.; Lobach, Anatoly S.; Mazin, Danila D.; Vartapetov, Sergey K.
Applied physics. B, Lasers and optics, 05/2019, Volume: 125, Issue: 5Journal Article
The nonlinear optical absorption of aqueous suspension with a few-layer (4–5 layers) molybdenum disulfide (MoS 2 ) 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 MoS 2 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.
