Broadband Terahertz Wave Emission from Thin Metal Films Excited by Two-Color Laser Fields

被引：0
作者：
Dai, Jianming [1 ]
Zhang, X. -C. [1 ,2 ]
机构：
[1] Univ Rochester, Inst Opt, 275 Hutchison Rd, Rochester, NY 14627 USA
[2] Huazhong Univ Sci & Technol, Wuhan 430074, Peoples R China
来源：
2014 39TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2014年
关键词：
OPTICAL RECTIFICATION; GENERATION; PULSES; AIR;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We demonstrated broadband terahertz (THz) wave emission from thin metal (gold) films excited by two-color laser fields synthesized by an in-line phase compensator. By driving the electrons in thin metal films asymmetrically, THz wave emission is observed at normal incidence of the two-color pump beams in a transmission geometry. Similar to the air-plasma THz source excited by two-color laser fields, the generation process can be phenomenologically attributed to the 3rd-order nonlinear (four-wave mixing) process.
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页数：2
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