Verification of the physical mechanism of THz generation by dual-color ultrashort laser pulses

被引：52

作者：

Li, Min ^{[1
]}

Li, Wenxue ^{[1
]}

Shi, Yi ^{[1
]}

Lu, Peifen ^{[1
]}

Pan, Haifeng ^{[1
]}

Zeng, Heping ^{[1
]}

机构：

[1] E China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 16期

关键词：

AIR;

D O I：

10.1063/1.4759268

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We experimentally verified the physical mechanism of the dual-color ultrashort laser-driven THz wave generation in air by measuring its dependence on the dual-color field phase difference. Our results evidenced that the THz generation from the laser-induced plasma is dominated by the photo-current mechanism. A continuous rotation of THz polarization was observed by changing the dual-color phase difference, facilitating coherent control of the THz intensity and polarization. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4759268]

引用

页数：3

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