Frequency comb from 500 Hz to 2 THz by optical rectification in zinc telluride
Frequency comb from 500 Hz to 2 THz by optical rectification in zinc telluride
复制标题
通过碲化锌光学整流实现 500 Hz 至 2 THz 频率梳
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
D. Yarotski
中科院分区：
文献类型：
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作者：
M. Hagmann;T. Henage;A. Azad;A. Taylor;D. Yarotski
超快激光脉冲的光整流被广泛用于产生太赫兹辐射。在这里，用ZnTe（100）晶体和锁模超快激光器进行光学整流产生的微波频率梳已经被测量，表明谐波是激光脉冲重复率（500 Hz）的整数倍。同时测量的太赫兹频谱的峰值功率与7.5 GHz附近的微波频率梳测量值的强相关性表明它们具有共同的起源。
Optical rectification of ultrafast laser pulses is widely used to generate THz radiation. Here, the microwave frequency comb generated by optical rectification with a ZnTe(100) crystal and a mode-locked ultrafast laser has been measured, showing that the harmonics are at integer multiples of the pulse repetition rate of the laser (500 Hz). Strong correlations of the peak powers of the simultaneously measured THz spectrum and the measurements of the microwave frequency comb near 7.5 GHz suggest that they have a common origin.