铋烯的可调谐非线性光吸收特性方法研究进展  

Research Progress on Tunable Nonlinear Optical Absorption Properties of Bismuthene

作　　者：李冰雪 潘俊杰 闫昊[1] 詹燕燕 房丹[1] 李金华[1] 

机构地区：[1]长春理工大学物理学院,吉林 长春

出　　处：《材料科学》2024年第4期498-509,共12页Material Sciences

摘　　要：非线性光学材料由于其独特的非线性光学吸收特性,被广泛应用于激光调Q、激光锁模、光限幅、全光开关、光通信等一系列非线性光学领域中。非线性光学材料实现饱和吸收特性与反饱和吸收特性之间的转换对设计出多用途的光电子器件尤为重要。但目前非线性光学材料在大多数的应用中仅表现出饱和吸收特性或反饱和吸收特性二者中的一种。这意味着开发能够实现非线性光学材料的饱和吸收特性与反饱和吸收特性之间的可控调谐的方法成为研究热点。在这项工作中,综述了调谐饱和吸收特性与反饱和吸收特性的方法,并且提出了一种基于修改氧化程度来调谐铋烯的非线性光学吸收特性的开创性方法,为其他非线性光学材料的可控调节提供了思路,对新型光电子器件的设计具有重要而深远的意义。Nonlinear optical materials are widely used in a series of nonlinear optical fields such as laser Q-switching, laser mode-locking, optical limiting, all-optical switching, and optical communication due to their unique nonlinear optical absorption characteristics. The conversion between saturable absorption characteristics and reverse saturable absorption characteristics of nonlinear optical materials is particularly important for the design of multi-purpose optoelectronic devices. However, at present, nonlinear optical materials only show one of the saturated absorption characteristics or reverse saturated absorption characteristics in most applications. This means that the development of a method that can realize the controllable tuning between the saturable absorption characteristics and the reverse saturable absorption characteristics of nonlinear optical materials has become a research hotspot. In this work, the methods of tuning saturable absorption characteristics and reverse saturable absorption characteristics are reviewed, and a groundbreaking method for tuning the nonlinear optical absorption characteristics of bismuthene based on modifying the degree of oxidation is proposed. It provides ideas for the controllable adjustment of other nonlinear optical materials and has important and far-reaching significance for the design of new optoelectronic devices.

关 键 词：非线性光学材料 饱和吸收特性 反饱和吸收特性 

分 类 号：TN2[电子电信—物理电子学]