1000-fps consecutive ultrafast 2D-burst imaging with a sub-nanosecond temporal resolution by a frequency-time encoding of SF-STAMP
1000-fps consecutive ultrafast 2D-burst imaging with a sub-nanosecond temporal resolution by a frequency-time encoding of SF-STAMP
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DOI：
10.1007/s00339-020-3314-1
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发表时间：
2020-01
期刊：
影响因子：
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通讯作者：
Takakazu Suzuki;Hirofumi Nemoto;Kazuki Takasawa;F. Kannari
中科院分区：
文献类型：
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作者：
Takakazu Suzuki;Hirofumi Nemoto;Kazuki Takasawa;F. Kannari
我们使用帧速率为1000 fps的高速相机作为探测器，演示了利用光谱滤波的顺序定时全光学映射摄影（SF-STAMP）的单次拍摄、频率-时间编码突发成像方法的实时、原位操作。我们获得了单次拍摄的脉冲脉冲飞秒激光烧蚀玻璃的脉冲的图像由啁啾探测激光脉冲与1-2-ps的帧间隔或由光谱扫描的突发激光脉冲序列与300-ps的间隔。利用啁啾探测激光脉冲，在短帧间隔条件下，观察到了激光烧蚀玻璃早期等离子体产生的猝发图像。我们还捕捉到了突发图像的羽流和冲击波的产生在空气中与1.5纳秒的观察时间窗口的光谱扫描探测激光脉冲序列。
We demonstrated real-time, in-situ operation of a single-shot, frequency-time-encoding burst imaging method of sequentially timed all-optical mapping photography utilizing spectral filtering (SF-STAMP) by employing a high-speed camera with the frame rate of a 1000 fps as a detector. We obtained single-shot burst images of a pulse-by-pulse femtosecond laser ablation of a glass by a chirped probe laser pulse with a 1–2-ps frame interval or by a spectrally sweeping burst laser pulse train with a 300-ps interval. We observed burst images of plasma generation during the early stage of laser ablation in a glass with a short frame interval by a chirped probe laser pulse. We also captured burst images of plume and shock-wave generation in air with a 1.5-ns observation time window by a spectrally sweeping probe laser pulse train.