单曝光偏振映射超快成像  

Single-shot polarization-resolved ultrafast mapping photography

作　　者：丁鹏鹏 齐大龙 姚云华 何一林 姚佳丽 金诚挚 郭姿含 邓联忠 孙真荣 张诗按 Pengpeng Ding;Dalong Qi;Yunhua Yao;Yilin He;Jiali Yao;Chengzhi Jin;Zihan Guo;Lianzhong Deng;Zhenrong Sun;Shian Zhang(State Key Laboratory of Precision Spectroscopy,School of Physics and Electronic Science,East China Normal University,Shanghai 200241,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China)

机构地区：[1]State Key Laboratory of Precision Spectroscopy,School of Physics and Electronic Science,East China Normal University,Shanghai 200241,China [2]Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China

出　　处：《Science Bulletin》2023年第5期473-476,M0003,共5页科学通报（英文版）

基　　金：partially supported by the National Natural Science Foundation of China(92150301,12074121,62105101,62175066,12274129,and 12274139);the Science and Technology Commission of Shanghai Municipality(21XD1400900,21JM0010700,and 20ZR1417100).

摘　　要：单曝光超快光学成像可以捕捉发生在纳秒时间尺度内的瞬态场景,尤其是对于泵浦探测技术无能为力的不可逆或难以重复的场景更具优势.为了打破传统CCD或CMOS相机的数据读出速度限制,单曝光超快成像技术通常将时间信息转换到波长、空间或空间频域等来进行超快探测.本文作者开发了一种新型时间-偏振映射的超快成像技术(PUMP),首先利用石英旋光晶体产生具有时变偏振角的超短激光脉冲照明动态场景,然后通过偏振滤波阵列对不同时刻信息进行快照曝光,最后结合迭代去卷积算法,实现了将时域信息转换到偏振维度的超快成像.此外,作者利用该新型超快成像系统实时观测了氧化铟锡薄膜的超快激光烧蚀动力学过程,验证了其在超快探测中的出色性能.该技术的发展有望进一步推动超快光学成像在基础和应用科学研究领域的应用.Ultrafast optical imaging(UOI)can capture the spatiotemporal information of dynamic scenes from nanosecond to femtosecond time scales,and therefore it has become a research hotspot in recent years[1].So far,UOI has been successfully applied in various research fields,involving physics,chemistry,and biology[2,3].

关 键 词：速度限制 应用科学研究 信息转换 氧化铟锡薄膜 超短激光脉冲 CMOS相机 动态场景 数据读出 

分 类 号：O43[机械工程—光学工程]