Xi'an Jiaotong University

Ziwei Chen

Wei Wang

Xingwen Li

Jian Wu

Zhiyuan Jiang

Xinmiao Zhou

Huantong Shi

Zhenyu Wang

The present disclosure discloses an optical measurement device and method for a plasma magnetic field with adjustable sensitivity. The method comprises the following steps: constructing an optical rotation measurement system based on a pulsed laser beam for measuring an optical rotation image and a shadow image; processing the optical rotation image and the shadow image, and obtaining a distribution of proportional coefficients based on alight intensity distribution; obtaining a distribution of rotation angles based on a mapping relationship between the proportional coefficients and the rotation angles; constructing an interference measurement system based on the pulsed laser beam, and measuring a phase shift of an interference image; calculating a distribution of electron areal densities based on the phase shift in the interference image; obtaining a two-dimensional distribution of an average magnetic field based on the rotation angles and the electron areal densities.

Optical measuring device and method for plasma magnetic field with adjustable sensitivity

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Xi'an, China

Ziwei Chen