Ultrafast optical nonlinearity in natural van der Waals heterostructure nanosheets of franckeite

Ultrafast optical nonlinearity in natural van der Waals heterostructure nanosheets of franckeite

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Franckeite, a natural van der Waals heterostructure with excellent physicochemical characteristics, has shown great potential Front Loader Door Gasket for high-performance optoelectronic device.Here, the few-layer franckeite nanosheets have been prepared by liquid phase-exfoliation method successfully, and the nonlinear optical absorption and copyright dynamics behaviors of the nanosheets have been studied experimentally.The franckeite nanosheets show wavelength- and intensity-dependent nonlinear absorption characteristics, and exhibit ultrafast copyright dynamic process.The ultrafast optical nonlinearity in franckeite nanosheets has been further validated via an Er3+-doped Storage Ottoman fiber laser to deliver stable femtosecond pulse.The experimental results reveal that franckeite heterostructure nanosheets can be an ideal candidate in the design and manufacture of ultrafast nonlinear optoelectronic devices.