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    题名 作者 年代 出处 被引量
1Polarization of terahertz emission out of incident plane from laser interactions with solid targets显示文摘A powerful terahertz(THz) pulse was produced by a p-polarized,70 fs,800 nm laser interacting with solid targets at an incident angle of 45°.The polarization of the THz emission was measured out of the laser incident plane.The results showed that it was linearly polarized.We established a surface current model to explain this phenomenon,assuming that the transient current moving along the plasma surface was responsible for the generation of the THz emission.The model expectation and the experimental result were in good agreement.DU Fei LI Chun ZHOU MuLin WANG WeiMin SU LuNing ZHENG Yi LI YuTong MA JingLong SHENG ZhengMing CHEN LiMing LU Xin WANG ZhaoHua WEI ZhiYi ZHANG Jie 2012Science China(Physics,Mechanics & Astronomy)2012,55,4:1
2Effects of target pre-heating and expansion on terahertz radiation production from intense laser-solid interactions显示文摘The first experimental measurements of intense(~7 × 1019 W cm-2) laser-driven terahertz(THz) radiation from a solid target which is preheated by an intense pulse of laser-accelerated protons is reported. The total energy of the THz radiation is found to decrease by approximately a factor of 2 compared to a cold target reference. This is attributed to an increase in the scale length of the preformed plasma, driven by proton heating, at the front surface of the target,where the THz radiation is generated. The results show the importance of controlling the preplasma scale length for THz production.X.H.Yuan Y.Fang D.C.Carroll D.A.MacLellan F.Du N.Booth M.Burza M.Chen R.J.Gray Y.F.Jin Y.T.Li Y.Liu D.Neely H.Powell G.Scott C.-G.Wahlstrm J.Zhang P.McKenna Z.M.Sheng 2014High Power Laser Science and Engineering2014,2,1:0
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