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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.

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Abstract

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.

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作者及机构信息

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通信作者:吴波,bowu@m.scnu.edu.cn; 周国富,guofu.zhou@m.scnu.edu.cn

基金项目: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)和国家绿色光电子国际联合研究中心(批准号: 2016B01018)资助的课题.

Authors and contacts

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Corresponding author:Wu Bo,bowu@m.scnu.edu.cn; Zhou Guo-Fu,guofu.zhou@m.scnu.edu.cn

Funds:Project supported by the National Natural Science Foundation of China (Grant No. 62175068), the Basic and Applied Basic Research Foundation of Guangdong Province, China (Grant No. 2023B1515020024), the Key Laboratory of Optical Information Materials and Technology of Guangdong Province, China (Grant No. 2017B030301007), and the National Green Optoelectronics International Joint Research Center (Grant No. 2016B01018).

文章全文: translate this paragraph

参考文献

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施引文献

下载: 全尺寸图片幻灯片

材料	λ₁/nm	λ₂/nm	β_ND/(cm·GW^–1)	测试条件	β_D/(cm·GW^–1)
CdTe^[34]	870	8840	~1000	10 Hz, 30 ps	~20
ZnS^[34]	~390	~1760	~15	1 kHz, 140 fs	~1
ZnSe^[34]	~480	5600	~270	1 kHz, 140 fs	~2
ZnO^[34]	420	2000	~40	1 kHz, 140 fs	~2.5
GaAs^[34]	870	8840	~800	10 Hz, 30 ps	~10
GaSb^[39]	1720	3550	140	1 kHz, 130 fs	64^[41]
Cu₂O^[42]	800	1494	88	1 kHz, 120 fs	27
MAPbBr₃^[23]	577	1700	53	1 kHz, 100 fs	8^[43]
GaAs/Al_0.32Ga_0.68As QW^[44]	1120	1960	~15	82 MHz, 156 fs	—
WS₂^[45]	620	776	250	80.48 MHz, 250 fs	100
MoSe₂^[45]	790	1500	650	80.48 MHz, 250 fs	80—800
(BA)₂(MA)₃Pb₄X₁₃^[46]	705	760—980	10	100 kHz, 7 fs	—
Si^[40]	1904	1350	0.97	250 kHz, 160 fs	0.5^[47]

下载: 导出CSV

材料	λ₁/nm	λ₂/nm	σ_ND/GM	测试条件	σ_D/GM
罗丹明6 G^[57]	800	691	596	溶剂: 甲醇; 浓度: 16.2 mmol/L; 脉宽: 103 fs	38—150^[58,59]
罗丹明 123^[57]	800	660	776	溶剂: 甲醇; 浓度: 4.2 mmol/L; 脉宽: 103 fs	80^[62]
香豆素6^[57]	800	652	1015	溶剂: 甲醇; 浓度: 23.7 mmol/L; 脉宽: 103 fs	—
香豆素343^[57]	800	651	49	溶剂: 氯仿; 浓度: 27.3 mmol/L; 脉宽: 103 fs	—
尼罗红^[57]	800	669	3270	溶剂: 氯仿; 浓度: 0.75 mmol/L; 脉宽: 103 fs	—
尼罗蓝A^[57]	800	626	1407	溶剂: 氯仿; 浓度: 0.68 mmol/L; 脉宽: 103 fs	—
咔唑衍生物BEMC^[60]	800	650	220	溶剂: 甲醇; 浓度: 10 mmol/L; 脉宽: 140 fs	34
氨基七甲噻吩^[63]	925	1020	1860	溶剂: 甲醇; 浓度: 1.3 mmol/L; 脉宽: 75 fs	940

下载: 导出CSV

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