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：Liu, Yuxi[1]; Zhou, Yulong[2]; Shao, Shuoting[1]; Wei, Pengfei[2]; Liang, Qifeng[2]; Wang, Xiaotong[1]; Tang, Huibo[1,3]; Kuang, Longyu[4]; Hu, Guangyue[1,5]

机构：[1] Key Laboratory of Geospace Environment, Chinese Academy of Sciences, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, 230026, China; [2] College of Mathematics Physics and Information, Shaoxing University, Shaoxing, 312000, China; [3] School of Physics, Harbin Institute of Technology, Harbin, 150001, China; [4] Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang, 621900, China; [5] Center for Excellence in Ultra-intense Laser Science [CEULS], Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China

年份：2025

卷号：74

期号：14

外文期刊名：Wuli Xuebao/Acta Physica Sinica

收录：EI(收录号：20252918816826)

语种：中文

外文关键词：Crystals - Electromagnetic wave emission - Electrooptical devices - Supercontinuum generation - Terahertz wave detectors - Terahertz waves

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 > 1 μm), 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. ? 2025 Chinese Physical Society.