Duguay M A, Mattick A T
Appl Opt. 1971 Sep 1;10(9):2162-70. doi: 10.1364/AO.10.002162.
Three new results have been obtained with a recently developed camera of 10-psec framing time: (1) The effect of the finite speed of light in photographing relativistic objects is experimentally demonstrated, by photographing a dumbbell-like entity formed by two packets of light. In contrast to material objects, which, theory predicts, should appear rotated, the light dumbbell appears sheared. (2) Photographs of the mode-locked Nd: glass laser radiation show numerous subsidiary pulses accompanying the main ultrashort pulses in the train. The latter have durations ranging from 7 psec to 15 psec. (3) The technique of gated picture ranging, previously used with nanosecond pulses, is extended to the picosecond range where a resolution of 1 cm is demonstrated. Some potentially useful applications are proposed.
使用最近研制的具有10皮秒帧时间的相机已获得了三项新成果：(1) 通过拍摄由两束光脉冲形成的哑铃状实体，实验证明了在拍摄相对论性物体时光的有限速度的影响。与理论预测的物质物体应出现旋转不同，光哑铃出现了剪切现象。(2) 锁模钕玻璃激光辐射的照片显示，在脉冲序列中主超短脉冲伴随着许多子脉冲。主超短脉冲的持续时间在7皮秒至15皮秒之间。(3) 以前用于纳秒脉冲的选通图像测距技术已扩展到皮秒范围，并证明了其1厘米的分辨率。还提出了一些潜在的有用应用。
