Terahertz wave generation from liquid nitrogen

作     者：ALEXEI V.BALAKIN JEAN-LOUIS COUTAZ VLADIMIR A.MAKAROV IGOR A.KOTELNIKOV YAN PENG PETER M.SOLYANKIN YIMING ZHU ALEXANDER P.SHKURINOV 

作者机构：Terahertz Technology Innovation Research Institute Shanghai Key Laboratory of Modern Optical System Terahertz Spectrum and Imaging Technology Cooperative Innovation Center University of Shanghai for Science and Technology Shanghai 200093 China Faculty of Physics and International Laser Center Lomonosov Moscow State UniversityMoscow 119991 Russia IMEP-LAHC UMR CNRS 5130 Université Savoie Mont-Blanc Campus scientifique 73376 Le Bourget du Lac Cedex France Budker Institute of Nuclear Physics Novosibirsk 630090 Russia Novosibirsk State University Novosibirsk 630090 Russia Institute on Laser and Information Technologies–Branch of the Federal Scientific Research Centre "Crystallography and Photonics" of Russian Academy of Sciences Svyatoozerskaya 1 Shatura 140700 Russia 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2019年第7卷第6期

页      面：678-686页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：Russian Foundation for Basic Research(RFBR)(17-02-01217,18-29-20104,18-52-16016) Major National Development Project of Scientific Instrument and Equipment,China(2016YFF0100503) National Natural Science Foundation of China(NSFC)(61722111) 111 Project,China(D18014) International Joint Lab Program supported by Science and Technology Commission of Shanghai Municipality(STCSM)(17590750300) 

主　　题：Terahertz wave liquid nitrogen 

摘      要：We present the results of research carried out for the first time, to the best of our knowledge, on the generation of terahertz radiation under the action of single-color and dual-color high-power femtosecond laser pulses on liquefied gas–liquid nitrogen. Our experimental results supported by careful theoretical interpretation showed clearly that under femtosecond laser radiation, liquid and air emit terahertz waves in a very different way. We assumed that the mobility of ions and electrons in liquid can play an essential role, forming a quasi-static electric field by means of ambipolar diffusion mechanism.