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 for high-performance optoelectronic device.Here, the few-layer franckeite nanosheets have been prepared by liquid hfcs1lp 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 taylor swift baby guitar an Er3+-doped 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.