Single-frequency coherent terahertz-wave generation using two Cr:forsterite lasers pumped using one Nd:YAG laser

被引:6
|
作者
Nishizawa, Jun-ichi [2 ,3 ]
Sasaki, Tetsuo [2 ,3 ]
Tanabe, Tadao [1 ]
Hozumi, Norimitsu [1 ]
Oyama, Yutaka [1 ]
Suto, Ken [2 ,3 ]
机构
[1] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808579, Japan
[2] Semicond Res Inst, Aoba Ku, Sendai, Miyagi 9800845, Japan
[3] Semicond Res Inst, Aoba 5191176, Japan
来源
REVIEW OF SCIENTIFIC INSTRUMENTS | 2008年 / 79卷 / 03期
关键词
17;
D O I
10.1063/1.2884926
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
We have developed a compact terahertz-wave generator using two small Cr:forsterite lasers with single Nd:YAG laser pumping based on difference frequency generation in a GaP crystal. A Cr:forsterite laser was constructed with diffraction gratings, by which the pulse duration and delay time of the Cr:forsterite laser depend on the Cr:forsterite laser energy and the cavity length. The Cr:forsterite laser energy was tuned using the optical alignment and pumping energy. Temporal overlap of two Cr:forsterite laser pulses was realized at the GaP crystal. A single-frequency terahertz wave was generated at energy of 4.7 pJ around 2.95 THz using a 30-cm-long Cr:forsterite laser system. (C) 2008 American Institute of Physics.
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页数:3
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