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题名:
Picosecond resolving detection method and experiment for ultrafast X-ray by modulation of an optical probe
作者: Wang, B(王博)1,2,3; Bai Yong-Lin3; Cao Wei-Wei3; Xu, P(徐鹏)3; Liu, BY(刘百玉)3; Gou Yong-Sheng1,2,3; Zhu Bing-Li3; Hou Xun1
作者部门: 精密物理量测量实验室
刊名: ACTA PHYSICA SINICA
出版日期: 2015-10-20
卷号: 64, 期号:20
关键词: all optical modulation ; temporal resolution ; X-ray detection
学科分类: Physics, Multidisciplinary
DOI: 10.7498/aps.64.200701
其他题名: 基于探针光调制的皮秒分辨X-ray探测方法与实验
通讯作者: Wang, B
文章类型: Article
英文摘要: Diagnostic measurement of single picosecond event in high energy density physics, laser fusion, plasma radiation, and combustion, is of great importance. However, the measuring of the shape of the single X-ray pulse and the synchronization of X-ray and the laser pulse in picosecond resolution is still a great challenge. Restricted by the transit time of electrons, the time-resolution limit of a conventional framing camera based on the microchannel plate is 40 ps. Centered on the full-optical modulation effect of the light-probe, a novel method for X-ray detection of picoseconds temporal resolution based on low temperature GaAs is proposed in this work. The basic physical mechanism of the detector can be explained in both macroscopical and microcosmic ways. In the macroscopical way, the X-ray radiation absorption in the sensor material produces a transient, non-equilibrium electron-hole pair distribution that results in a transient differential change of the local refractive index, which is then sensed by the reflectivity changes of the optical probe beam. In the microcosmic way, X-ray absorption creates photoelectrons and the core level holes are subsequently filled through Auger or fluorescence processes. These excitations ultimately increase conduction and valence band carriers that perturb optical reflectivity.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
收录类别: SCI ; EI
项目资助者: National Natural Science Foundation of China(11305259 ; Ministry of Finance Major Research Equipment Project, China ; 11327303)
语种: 英语
WOS记录号: WOS:000368822000009
ISSN号: 1000-3290
产权排序: 1
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.opt.ac.cn/handle/181661/27800
Appears in Collections:精密物理量测量实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad, Xian Inst Opt & Precis Mech, Key Lab Ultrafast Diagnost Tech, Xian 710119, Peoples R China

Recommended Citation:
Wang Bo,Bai Yong-Lin,Cao Wei-Wei,et al. Picosecond resolving detection method and experiment for ultrafast X-ray by modulation of an optical probe[J]. ACTA PHYSICA SINICA,2015,64(20).
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文件名: 基于探针光调制的皮秒分辨X_ray探测方法与实验.pdf
格式: Adobe PDF
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