Nonlinear cross-phase modulation with intense single-cycle terahertz pulses

被引：133
|
作者：
Shen, Y. [1 ]
Watanabe, T.
Arena, D. A.
Kao, C.-C.
Murphy, J. B.
Tsang, T. Y.
Wang, X. J.
Carr, G. L.
机构：
[1] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA
[2] Brookhaven Natl Lab, Instrumentat Div, Upton, NY 11973 USA
来源：
PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 04期
关键词：
D O I：
10.1103/PhysRevLett.99.043901
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have demonstrated nonlinear cross-phase modulation in electro-optic crystals using intense, single-cycle terahertz (THz) radiation. Individual THz pulses, generated by coherent transition radiation emitted by subpicosecond electron bunches, have peak energies of up to 100 mu J per pulse. The time-dependent electric field of the intense THz pulses induces cross-phase modulation in electro-optic crystals through the Pockels effect, leading to spectral shifting, broadening, and modulation of copropagating laser pulses. The observed THz-induced cross-phase modulation agrees well with a time-dependent phase-shift model.
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页数：4
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