Kawada Yoichi, Yasuda Takashi, Takahashi Hironori, Aoshima Shin-ichiro
Central Research Laboratory, Hamamatsu Photonics KK, 5000 Hirakuchi, Hamakita-ku, Hamamatsu City, Shizuoka 34-8601, Japan.
Opt Lett. 2008 Jan 15;33(2):180-2. doi: 10.1364/ol.33.000180.
We propose a novel method that uses a femtosecond pulse with a tilted pulse front as a probe pulse to perform real-time measurement of temporal waveforms of a terahertz pulse. This method can operate on a single shot in principle. Real-time measurement of the terahertz pulse was achieved using the dynamic subtraction method with a synchronized high-speed complimentary metal-oxide semiconductor sensor. A time window of 2.6 ps was achieved. This value agrees well with results that were calculated theoretically and measured by an interferometric inverted field autocorrelator.
我们提出了一种新颖的方法，该方法使用具有倾斜脉冲前沿的飞秒脉冲作为探测脉冲，以对太赫兹脉冲的时间波形进行实时测量。该方法原则上可以单次运行。利用动态减法方法和同步高速互补金属氧化物半导体传感器实现了太赫兹脉冲的实时测量。获得了2.6皮秒的时间窗口。该值与理论计算结果以及干涉式倒易场自相关仪测量结果吻合良好。
