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Ultrafast nonlinear absorption and nonlinear refraction in few layer oxidized bl

上传者: 2021-02-08 10:46:02上传 PDF文件 1.19MB 热度 11次
We experimentally investigated the nonlinear optical response in few-layer oxidized black phosphorus (OBP) by the femtosecond Z-scan measurement technique, and found that OBP not only possesses strong ultrafast saturable absorption but also a nonlinear self-defocusing effect that is absent in black
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