非简并双光子吸收及其应用研究进展  

Research advances in nondegenerate two-photonabsorption and its applications

作　　者：吴波 王爵 王崴 周国富 Wu Bo;Wang Jue;Wang Wei;Zhou Guo-Fu(Institute of Electronic Paper Displays,Guangdong Provincial Key Laboratory of Optical Information Materials and Technology,South China Academy of Advanced Optoelectronics,South China Normal University,Guangzhou 510006,China;Shenzhen Guohua Optoelectronics Tech.Co.Ltd.,Shenzhen 518110,China;Academy of Shenzhen Guohua Optoelectronics,Shenzhen 518110,China)

机构地区：[1]华南师范大学,华南先进光电子研究院,广东省光信息材料与技术重点实验室,彩色动态电子纸显示技术研究所,广州510006 [2]深圳市国华光电科技有限公司,深圳518110 [3]深圳市国华光电研究院,深圳518110

出　　处：《物理学报》2023年第20期259-275,共17页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:62175068);广东省基础与应用基础研究基金自然科学基金(批准号:2023B1515020024);广东省光信息材料与技术重点实验室(批准号:2017B030301007);国家绿色光电子国际联合研究中心(批准号:2016B01018)资助的课题。

摘　　要：非简并双光子吸收是两个能量不同的光子同时被介质吸收,产生一次电子从基态经过一个中间虚态向激发态跃迁的非线性光学效应.非简并双光子吸收与简并双光子吸收相比,由于中间态共振效应,吸收系数得到了几十倍甚至几百倍的增大,因此在多个非线性光学应用中具有极大的潜力.本文首先介绍双光子吸收的基本原理,解释了非简并双光子吸收的增强机制;然后详细介绍双光子吸收的基本测量方法;接着综述三维半导体材料、有机荧光分子、二维材料与量子点的非简并双光子吸收相关研究;最后重点总结了其在红外探测与成像、双光子荧光显微成像、全光开关与光调制等领域的应用进展,并对领域领域的未来发展进行了展望.Nondegenerate two-photon absorption is a nonlinear optical effect in which two photons with different energy are absorbed by a medium simultaneously,resulting in a single electron transition from ground state to excited state through an intermediate virtual state.Compared with the degenerate two-photon absorption coefficient,the absorption coefficient of nondegenerate two-photon absorption is increased by tens or even hundreds of times due to the intermediate resonance effect,so it has great potentials in many nonlinear optical applications.Firstly,the basic principle of two-photon absorption is introduced and the enhancement mechanism of non-degenerate two-photon absorption is explained in this paper.Secondly,the basic method of measuring two-photon absorption is introduced in detail.Thirdly,the reports on nondegenerate two-photon absorption of three-dimensional semiconductor materials and two-dimensional materials are reviewed.Finally,the application progress of infrared detection and imaging,two-photon fluorescence microscope,all-optical switch and optical modulation is summarized,and the future research in this field is summarized and prospected.

关 键 词：非简并双光子吸收 红外探测 非线性光学 双光子荧光显微成像 全光开关与光调控 

分 类 号：O437[机械工程—光学工程]