Quantitative two-dimensional shadowgraphic set-up for high-sensitivity measurement of low-density laser-plasmas
Amrutha Gopal, Stefano Minardi, Michael Tatarakis
Abstract
We present a quantitative shadowgraphic method which can measure the density of a laser-generated plasma in air with sensitivity and resolution comparable or better than traditional interferometric techniques. Simultaneous comparison of both shadowgraphy and interferometry has been carried out allowing the experimental evaluation of the reliability of the shadowgraphic method.
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