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- W4386891956 abstract "We report the wavelength-dependent third-order optical nonlinearity of two-dimensional halide organic-inorganic perovskite (PEA) 2 PbI 4 film experimentally. The high-quality two-dimensional (PEA) 2 PbI 4 film prepared via confinement-assisted drop-casting process exhibits ultrafast optical response and large third-order optical nonlinearities, and the measured nonlinear refractive index is closer to the quantum perturbation model accounting for the excitonic effect. In addition, the wavelength-dependent optical response transition from self-focusing to self-defocusing, saturable absorption to reverse saturable absorption has been observed and investigated. The experimental results confirm the large third-order optical nonlinearities in (PEA) 2 PbI 4 film and may make inroads toward developing cost-effective high-performance optoelectronic devices." @default.
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- W4386891956 date "2023-09-28" @default.
- W4386891956 modified "2023-10-09" @default.
- W4386891956 title "Dispersion of the third-order optical nonlinearities in 2D (PEA)₂PbI₄ perovskite film" @default.
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- W4386891956 doi "https://doi.org/10.1364/oe.502036" @default.
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