期刊
PHOTONICS RESEARCH
卷 7, 期 6, 页码 678-686出版社
OPTICAL SOC AMER
DOI: 10.1364/PRJ.7.000678
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资金
- 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]
- Science and Technology Commission of Shanghai Municipality (STCSM) [17590750300]
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. (C) 2019 Chinese Laser Press
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