石墨烯材料的非线性光学研究进展炭材料专栏

Research Progress on the Nonlinear Optical Properties of Graphene-Materials

石墨烯作为一种极薄的二维晶体,因其优异的物理和化学特性,引起了科学家广泛的关注。由于石墨烯具有热导率和电子迁移率高、比表面积大、宽波段响应、光学带隙可调、易于表面修饰等特性,石墨烯基材料的光学性质受到了越来越多的重视。近年来,科学家已将该类材料成功地应用到非线性光学研究领域并且取得了一系列重要的研究成果。重点阐述石墨烯及其复合材料近年来在非线性光学中的应用进展,首先概述了石墨烯的饱和吸收特性及其在不同脉冲激光锁模方面的应用;其次介绍了氧化石墨烯在不同条件下的非线性光学性质;最后总结了石墨烯复合材料的光限幅性能以及其激光防护器件的制备,并进一步指出了该研究领域仍存在的一些问题。

Graphene, as a kind of extremely thin two-dimensional crystal, has widely attracted scientists＇ attention because of their excellent physical and chemical properties. It has been successfully applied to the nonlinear optical research field due to the high thermal and electron mobility conductivity, large specific surface area, wide and adjustable optical band gap and easily modified surface. The optical properties of graphene-based nanomaterials have attracted much recent attention. The scientists have made a series of important research results in this field recently. This article will focus on the progress in the application of nonlinear optical properties of graphene and graphene-based materials in recent years. Firstly, we will summarize the saturated absorption properties of graphene and its applications in laser mode-locking; sec- ondly , we will summarize the nonlinear optical properties of graphene oxide under different conditions; again, we will summarize the optical limiting properties of graphene composites and their applications in laser devices. Accordingly, the challenges in this promising research area are also presented.