THz generation from water wedge excited by dual-color pulse
THz generation from water wedge excited by dual-color pulse
复制标题
双色脉冲激发水楔产生太赫兹
DOI:
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发表时间:
2020
期刊:
影响因子:
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通讯作者:
H. Zeng
中科院分区:
文献类型:
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作者:
Min Li;Zhenyu Li;Junyi Nan;Xia Yu;He Mingyang;Feng Wang;Lu Wenhui;Yuan Shuai;H. Zeng
Terahertz (THz) waves could be generated through exciting a gravity-guided, free-flowing water wedge by a dual-color pulse. It is not required to rotate the optimal angle considering the water film as an ionization medium. It is demonstrated to be more effective to generate stronger THz radiation when the ionization position is on the front surface of the air water interface of the water wedge by moving its position. The effect of pulse energy on THz generation is also investigated, and it is observed that with the increase of pulse energy the THz electric field shows a quadratic rising trend. These observations are consistent with air plasma induced THz emission.