文献类型：期刊文献

中文题名：红外超连续辐射泵浦电光晶体产生的太赫兹辐射

英文题名：Terahertz radiation generated by infrared supercontinuum radiation pumped electro-optic crystal

作者：刘雨熙[1];周宇龙[2];邵烁婷[1];尉鹏飞[2];梁奇锋[2];王小同[1];唐桧波[1,3];况龙钰[4];胡广月[1,5]

机构：[1]中国科学技术大学核科学技术学院,中国科学院近地空间环境重点实验室,合肥230026;[2]绍兴文理学院数理信息学院,绍兴312000;[3]哈尔滨工业大学物理学院,哈尔滨150001;[4]中国工程物理研究院激光聚变研究中心,绵阳621900;[5]中国科学院上海光学精密机械研究所,中国科学院超强激光科学卓越创新中心,上海201800

年份：2025

卷号：74

期号：14

起止页码：80

中文期刊名：物理学报

外文期刊名：Acta Physica Sinica

收录：北大核心2023、SCI-EXPANDED(收录号：WOS:001544952500015)、、EI(收录号：20252918816826)、WOS、北大核心

基金：Project supported by the National Natural Science Foundation of China (Grant Nos. 12175230, 11775223, 12205298), the Chinese Academy of Sciences Program for Non-Consensus and Disruptive Research (Grant No. CX2140000042), and the "USTC Research Funds of the Double First-Class Initiative" (Grant No. YD2140002006) .

语种：中文

中文关键词：飞秒激光;太赫兹波;超连续辐射;固体介质

外文关键词：femtosecond laser;terahertz wave;supercontinuum radiation;solid medium

中文摘要：飞秒激光激发的太赫兹波在很多领域得到了广泛的应用.本文演示了一种新的太赫兹辐射产生方式,利用飞秒激光与透明固体介质作用产生的红外超连续辐射(>1μm)泵浦太赫兹电光晶体,产生了单周期、低频、宽带的太赫兹辐射.飞秒激光电离介质过程会同时产生红外超连续辐射和太赫兹辐射,如果产生的红外超连续辐射和太赫兹辐射一同进入电光晶体,那么红外超连续辐射的存在会干扰原有太赫兹辐射的探测.但通过窄带滤光片过滤出红外超连续辐射的特定成分,可以用来测量电光晶体在红外波段的响应特征,这为电光晶体的红外响应研究提供了新的思路.

外文摘要：Femtosecond laser excited terahertz waves have been widely used in various fields.Herein,we demonstrate a novel method to generate terahertz radiation from a terahertz electro-optic crystal excited by infrared supercontinuum radiation(wavelengths>1μm),which is produced via the interaction between a femtosecond laser and a transparent solid medium.This approach yields single-cycle,low-frequency,broadband terahertz radiation.In the femtosecond laser-induced ionization process in a medium,both infrared supercontinuum radiation and terahertz radiation are simultaneously generated.When the resulting infrared supercontinuum radiation and terahertz radiation concurrently enter into an electro-optic crystal,the presence of the infrared supercontinuum radiation may interfere with the detection of the intrinsic terahertz radiation.By filtering the infrared supercontinuum radiation with narrowband filters,a new strategy is proposed for investigating the response of the electro-optic crystal in infrared spectral region.