Observation of ultrafast phenomena using chirped pulse digital holography
Observation of ultrafast phenomena using chirped pulse digital holography
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DOI：
10.1016/j.optcom.2020.125941
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发表时间：
2020-01
影响因子：
2.4
通讯作者：
N. Karasawa;S. Yamada;Hiroki Kanaya
中科院分区：
文献类型：
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作者：
N. Karasawa;S. Yamada;Hiroki Kanaya
我们通过实验演示了啁啾脉冲数字全息术，用于测量超快光学波前序列，时间分辨率为 35 fs，时间间隔为 3.7 ps。在该方法中，多个超快物体脉冲和啁啾参考脉冲被干涉以记录数字全息图，并且可以单独重建不同时间的光学波前。使用多个光脉冲获得从喷嘴喷射的压缩空气的相位图像。火花塞中火花放电的相位图像也是使用单次光脉冲获得的。给出了啁啾脉冲数字全息中的相位畸变效应及其校正方法。
We experimentally demonstrate chirped pulse digital holography for measuring the sequence of ultrafast optical wavefronts in the temporal resolution of 35 fs and the time separation of 3.7 ps. In this method, multiple ultrafast object pulses and a chirped reference pulse are interfered to record a digital hologram and optical wavefronts at different times can be reconstructed separately. The phase images of pressured air injected from a nozzle are obtained using multiple optical pulses. Also the phase images of spark discharge in a spark plug are obtained using a single-shot optical pulse. The phase distortion effect in chirped pulse digital holography and the method of its correction are shown.