Frequency-agile THz-wave generation and detection system using nonlinear frequency conversion at room temperature

被引：20
|
作者：
Guo, Ruixiang [2 ]
Ikar'i, Tomofumi [2 ]
Zhang, Jun [2 ]
Minamide, Hiroaki [2 ]
Ito, Hiromasa [1 ,2 ]
机构：
[1] Tohoku Univ, Grad Sch Engn, Sendai, Miyagi 9808577, Japan
[2] RIKEN Adv Sci Inst, Aoba Ku, Sendai, Miyagi 9800845, Japan
来源：
OPTICS EXPRESS | 2010年 / 18卷 / 16期
基金：
日本学术振兴会;
关键词：
PARAMETRIC OSCILLATOR; TERAHERTZ RADIATION; LITHIUM-NIOBATE; UP-CONVERSION; CRYSTAL; LASER;
D O I：
10.1364/OE.18.016430
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A surface-emitting THz parametric oscillator is set up to generate a narrow-linewidth, nanosecond pulsed THz-wave radiation. The THz-wave radiation is coherently detected using the frequency up-conversion in MgO:LiNbO3 crystal. Fast frequency tuning and automatic achromatic THz-wave detection are achieved through a special optical design, including a variable-angle mirror and 1:1 telescope devices in the pump and THz-wave beams. We demonstrate a frequency-agile THz-wave parametric generation and THz-wave coherent detection system. This system can be used as a frequency-domain THz-wave spectrometer operated at room-temperature, and there are a high possible to develop into a real-time two-dimensional THz spectral imaging system. (C) 2010 Optical Society of America
引用
收藏
页码：16430 / 16436
页数：7
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