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In this paper, the high-repetition-rate passively Q-switched(PQS) and the femtosecond continuous-wave mode-locked(CWML) lasers are successfully obtained with 2 D black arsenic-phosphorus(b-As P) nanosheets as saturable absorber(SA) at 1 μm for the first time, to the best of our knowledge. The saturable absorption properties and ultrafast carrier dynamics of the 2 D b-As P SA are explored by Z-scan and pump-probe techniques. Moreover, according to the measurement of desired nonlinear optical char... 相似文献
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