Yb:YAG thin-disk chirped pulse amplification laser system for intense terahertz pulse generation
Yb:YAG thin-disk chirped pulse amplification laser system for intense terahertz pulse generation
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DOI：
10.1364/oe.23.015057
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发表时间：
2015-06-01
期刊：
影响因子：
3.8
通讯作者：
Sugiyama, Akira
中科院分区：
文献类型：
--
作者：
Ochi, Yoshihiro;Nagashima, Keisuke;Sugiyama, Akira
我们已经开发了一个1kHz重复频率的皮秒激光系统，专门用于产生强太赫兹（THz）脉冲。该系统包括一个啁啾脉冲放大激光器配备了Yb：YAG薄盘放大器。在室温下，Yb：YAG薄盘再生放大器提供的脉冲具有超过10 mJ的能量和1.2 nm的光谱带宽。在通过衍射光栅对压缩器之后获得的脉冲持续时间为1.3ps。通过采用这种皮秒激光器作为泵浦源，具有0.3 THz的峰值频率和4 μ J的能量的太赫兹脉冲产生的光整流的方式在Mg掺杂的铌酸锂晶体。(C)2015美国光学学会
We have developed a 1 kHz repetition picosecond laser system dedicated for intense terahertz (THz) pulse generation. The system comprises a chirped pulse amplification laser equipped with a Yb:YAG thin-disk amplifier. At room temperature, the Yb:YAG thin-disk regenerative amplifier provides pulses having energy of over 10 mJ and spectral bandwidth of 1.2 nm. The pulse duration achieved after passage through a diffraction grating pair compressor was 1.3 ps. By employing this picosecond laser as a pump source, THz pulses having a peak frequency of 0.3 THz and 4 mu J of energy were generated by means of optical rectification in an Mg-doped LiNbO3 crystal. (C) 2015 Optical Society of America