Tunable terahertz wave generation in the 3- to 7-THz region from GaP
Tunable terahertz wave generation in the 3- to 7-THz region from GaP
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DOI：
10.1063/1.1592889
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发表时间：
2003-07
影响因子：
4
通讯作者：
T. Tanabe;K. Suto;J. Nishizawa;Kyosuke Saito;T. Kimura
中科院分区：
文献类型：
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作者：
T. Tanabe;K. Suto;J. Nishizawa;Kyosuke Saito;T. Kimura
在0.5- 3太赫兹区域产生可调谐太赫兹波之后，我们使用光学参量振荡器和YAG激光器（1.064 μm）将频率区域扩展到7太赫兹。调谐角θin在3 ~ 7太赫兹区域呈超线性增加，因此在5太赫兹处发生全反射，通过相对于入射光轴旋转晶体来避免全反射。结果，在泵浦和信号能量为3 mJ的情况下，在高达5.6 THz的太赫兹输出峰值功率为100 mW，在7 THz的太赫兹输出峰值功率为3 mW。
Following the generation of tunable terahertz waves from GaP in the 0.5- to 3-THz region, we extended the frequency region up to 7 THz, using an optical parametric oscillator and a YAG laser (1.064 μm). The tuning angle θin increased superlinearly in the 3- to 7-THz region, so that the total reflection took place at 5 THz, which was avoided by rotating the crystal relative to the incident optic axis. As a result, terahertz output peak powers of 100 mW at up to 5.6 THz and 3 mW at 7 THz were obtained, at pump and signal energies of 3 mJ, respectively.