High dynamic range and real-time 3D measurement based on a multi-view system

2020 ◽  
Author(s):  
Liang Zhang ◽  
Qian Chen ◽  
Chao Zuo ◽  
Shijie Feng
Keyword(s):  
Real Time ◽  
Dynamic Range ◽  
High Dynamic Range ◽  
3D Measurement ◽  
High Dynamic

scholarly journals Real-time high dynamic range 3D measurement using fringe projection

2020 ◽  
Vol 28 (17) ◽  
pp. 24363 ◽  
Author(s):  
Liang Zhang ◽  
Qian Chen ◽  
Chao Zuo ◽  
Shijie Feng
Keyword(s):  
Real Time ◽  
Dynamic Range ◽  
High Dynamic Range ◽  
Fringe Projection ◽  
3D Measurement ◽  
High Dynamic

High dynamic range real-time 3D measurement based on Fourier transform profilometry

2021 ◽  
Vol 138 ◽  
pp. 106833
Author(s):  
Yanzhao Liu ◽  
Yanjun Fu ◽  
Yuhao Zhuan ◽  
Kejun Zhong ◽  
Bingliang Guan
Keyword(s):  
Fourier Transform ◽  
Real Time ◽  
Dynamic Range ◽  
High Dynamic Range ◽  
3D Measurement ◽  
Fourier Transform Profilometry ◽  
High Dynamic

scholarly journals Single-shot cross-correlator for pulse-contrast characterization of high peak-power lasers

2018 ◽  
Vol 6 ◽  
Author(s):  
Jingui Ma ◽  
Peng Yuan ◽  
Jing Wang ◽  
Guoqiang Xie ◽  
Heyuan Zhu ◽  
...  
Keyword(s):  
Real Time ◽  
Peak Power ◽  
Dynamic Range ◽  
High Dynamic Range ◽  
System Optimization ◽  
High Peak ◽  
High Peak Power ◽  
Single Shot ◽  
High Dynamic ◽  
Pulse Contrast

Pulse contrast is a crucial parameter of high peak-power lasers since the prepulse noise may disturb laser–plasma interactions. Contrast measurement is thus a prerequisite to tackle the contrast challenge in high peak-power lasers. This paper presents the progress review of single-shot cross-correlator (SSCC) for real-time contrast characterization. We begin with the key technologies that enable an SSCC to simultaneously possess high dynamic range ($10^{10}$), large temporal window (50–70 ps) and high fidelity. We also summarize the instrumentation of SSCC prototypes and their applications on five sets of petawatt laser facilities in China. Finally, we discuss how to extend contrast measurements from time domain to spatiotemporal domain. Real-time and high-dynamic-range contrast measurements, provided by SSCC, can not only characterize various complex noises in high peak-power lasers but also guide the system optimization.

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