MoS₂ film shows layer-dependent nonlinear absorption behavior on interaction with ultrafast laser pulses [1]. This makes it a promising materials for use in laser mode-locking. Gold nanoparticles (AuNPs) are known to amplify the near field light owing to the surface plasmon resonances [2]. The change in the nonlinear absorption with the thickness of MoS₂ film has been investigated. Moreover, the nonlinear optical behavior of MoS₂-AuNPs hybrid systemhas also been compared to pristine MoS₂.
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Sirohi et al. (2024) studied this question.
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