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Proceedings Paper

Modified relation for laser-plasma electron density measurement using x-ray interferometry
Author(s): Hong Guo; Hua Tang; Xiquan Fu; Yunli Qiu; Mingwei Liu; Song Yu; Guangshan Lu; Dongmei Deng
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Paper Abstract

In this paper, the linear propagation of x rays in laser produced plasma is studied theoretically, with a quantum mechanical technique and the so-called V representation, where the representation transformation is made by using the potential Hamiltonian V. A modified expression relating the phase difference between the probe and the reference x ray light to the plasma electron density is derived, in which the electron density gradient and its higher-order effects are taken into account. The coupling relation between phase and amplitude of x-ray is derived, and the solutions with higher-order corrections are given. An important parameter is given, which is related to the errors of the electron density measurement using x-ray interferometry. It is depicted that providing the parameter is less than one, the x-ray interferometry can be used for the measurement of the electron density, while, the greater value of the parameter, the higher order modifications need to make.

Paper Details

Date Published: 25 June 2003
PDF: 7 pages
Proc. SPIE 4969, Laser Resonators and Beam Control VI, (25 June 2003); doi: 10.1117/12.478980
Show Author Affiliations
Hong Guo, South China Normal Univ. (China)
Hua Tang, South China Normal Univ. (China)
Xiquan Fu, South China Normal Univ. (China)
Yunli Qiu, South China Normal Univ. (China)
Mingwei Liu, South China Normal Univ. (China)
Song Yu, South China Normal Univ. (China)
Guangshan Lu, South China Normal Univ. (China)
Dongmei Deng, South China Normal Univ. (China)

Published in SPIE Proceedings Vol. 4969:
Laser Resonators and Beam Control VI
Alexis V. Kudryashov; Alan H. Paxton, Editor(s)

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