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Proceedings Paper

Optical diagnosis of laser plasma based on coherent modulation imaging
Author(s): Hua Tao; Cheng Liu; Jianqiang Zhu
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Paper Abstract

We propose an optical diagnosis for plasma electron density measurement with the Coherent Modulation Imaging(CMI) method which is a kind of phase retrieval technique and doesn’t need a reference beam. The phase of the diagnostic light can be reconstructed by CMI algorithm. The distribution of electron density can be obtained by dealing with the phase change using Abelian integral formula. Experimental results showed that the area where the plasma generated is ejected from the center. As the energy of laser driver beam increases, the phase difference region resulting from the generation of the plasma becomes larger.

Paper Details

Date Published: 18 September 2018
PDF: 6 pages
Proc. SPIE 10772, Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2018, 107720T (18 September 2018); doi: 10.1117/12.2320825
Show Author Affiliations
Hua Tao, Shanghai Institute of Optics and Fine Mechanics (China)
Electronic Engineering Institute (China)
Cheng Liu, Shanghai Institute of Optics and Fine Mechanics (China)
Jianqiang Zhu, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 10772:
Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2018
Jean J. Dolne; Philip J. Bones, Editor(s)

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