Quantitative two-dimensional shadowgraphic method for high-sensitivity density measurement of under-critical laser plasmas |
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| Authors: | Gopal Amrutha Minardi Stefano Tatarakis Michael |
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| Affiliation: | Department of Electonics, Technological Educational Institute of Crete, Romanou, Chania, Greece. |
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| Abstract: | We present a quantitative shadowgraphic method that can measure the density of a laser-generated plasma in air. Simultaneous comparison of both shadowgraphy and interferometry has been carried out, allowing the experimental evaluation of the reliability of the shadowgraphic method. Even though limited by absorption in the sample, shadowgraphy performs better in terms of sensitivity. |
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