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中国物理学会期刊

基于二维纳米材料的超快脉冲激光器

CSTR: 32037.14.aps.68.20190751

Ultrafast pulse lasers based on two-dimensinal nanomaterials

CSTR: 32037.14.aps.68.20190751
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  • 石墨烯以其独特的光电特性打开了二维纳米材料的大门, 随后拓扑绝缘体、过渡金属硫化物、黑磷等二维材料相继被报道, 这些材料由于具有良好的非线性光学特性, 可用作被动饱和吸收体来产生脉冲激光. 本文总结了近年来基于二维材料的光纤激光器和固体激光器的研究状况, 从激光器的中心波长、脉宽、重复频率、脉冲能量和输出功率等基本参数对发展现状进行了阐述, 最后进行了总结和展望.

     

    Ultrafast pulse laser has been widely used in many fields, such as optical communications, military and materials processing. Semiconductor saturable absorber mirror (SESAM) serving as a saturable absorber is an effective way to obtain ultrafast pulse laser with ps-level pulse width. The SESAM needs specially designing to meet different wavelength operations. And the low damage threshold and high fabrication cost of SESAM hinder its development. Exploring novel materials is becoming a hot topic to overcome these drawbacks and obtain ultrafast laser with excellent performance. The discovery of graphene opens the door for two-dimensional nanomaterials due to the unique photoelectric properties of layered materials. Subsequently, two-dimensional (2D) materials such as topological insulators, transition metal sulfides, and black phosphorus are reported. These materials are used as saturable absorber to obtain a pulsed laser. In this paper, we summarize the research status of fiber lasers and solid-state lasers based on 2D materials in recent years. The development status of the lasers in terms of central wavelength, pulse width, repetition frequency, pulse energy and output power are discussed. Finally, the summary and outlook are given. We believe that nonlinear optical devices based on 2D materials will be rapidly developed in the future several decades

     

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