scholarly journals A NEAR-FIELD 3D CIRCULAR SAR IMAGING TECHNIQUE BASED ON SPHERICAL WAVE DECOMPOSITION

2013 ◽  
Vol 141 ◽  
pp. 327-346 ◽  
Author(s):  
Biao Zhang ◽  
Yiming Pi ◽  
Rui Min
Keyword(s):  
Imaging Technique ◽  
Near Field ◽  
Spherical Wave ◽  
Sar Imaging ◽  
Wave Decomposition

scholarly journals Single-shot imaging of surface molecular ionization in nanosystems

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Fenghao Sun ◽  
Hui Li ◽  
Shanshan Song ◽  
Fei Chen ◽  
Jiawei Wang ◽  
...  
Keyword(s):  
Near Infrared ◽  
Strong Field ◽  
Imaging Technique ◽  
Near Field ◽  
Velocity Map Imaging ◽  
Single Shot ◽  
Surface Molecules ◽  
Nanoparticle Interactions ◽  
Field Response ◽  
Ion Species

Abstract Using single-shot velocity map imaging technique, explosion imaging of different ion species ejected from 50 nm SiO2 nanoparticles are obtained excitedly by strong near-infrared and ultraviolet femtosecond laser fields. Characteristic momentum distributions showing forward emission of the ions at low excitation intensities and shock wave behaviors at high intensities are observed. When the excitation intensity is close to the dissociative ionization threshold of the surface molecules, the resulting ion products can be used to image the instant near-field distributions. The underlying dynamics of shock formation are simulated by using a Coulomb explosion model. Our results allow one to distinguish the ultrafast strong-field response of various molecular species in nanosystems and will open a new way for further exploration of the underlying dynamics of laser-and-nanoparticle interactions.

Spherical Wave Decomposition Based Polar Format Algorithm for ArcSAR Imaging

2020 ◽  
pp. 1-10
Author(s):  
Yuan Zhang ◽  
Yanping Wang ◽  
Yun Wei ◽  
Lingran Zhao ◽  
Wenfei Bai
Keyword(s):  
Spherical Wave ◽  
Wave Decomposition

RCS Calculation based on Near-Field L1-Regularized SAR Imaging

2021 ◽  
Author(s):  
Yangyang Wang ◽  
Yang Li ◽  
Xiaoling Zhang
Keyword(s):  
Near Field ◽  
Sar Imaging

scholarly journals A FAST 3D IMAGING TECHNIQUE FOR NEAR-FIELD CIRCULAR SAR PROCESSING

2012 ◽  
Vol 129 ◽  
pp. 271-285 ◽  
Author(s):  
Wei Yan ◽  
Jia-Dong Xu ◽  
Gao Wei ◽  
Li Fu ◽  
Hua-Bing He
Keyword(s):  
3D Imaging ◽  
Imaging Technique ◽  
Near Field ◽  
Sar Processing

scholarly journals Near-Field 3D SAR Imaging Using a Scanning Linear MIMO Array With Arbitrary Topologies

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 6782-6791 ◽  
Author(s):  
Bo Fan ◽  
Jing-Kun Gao ◽  
Hong-Jun Li ◽  
Zhi-Jie Jiang ◽  
Yan He
Keyword(s):  
Near Field ◽  
Sar Imaging

CBP-based multichannel autofocus for near-field SAR imaging

2011 ◽  
Author(s):  
Hyun Jeong Cho ◽  
David C. Munson, Jr.
Keyword(s):  
Near Field ◽  
Sar Imaging
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