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Please use this identifier to cite or link to this item:
http://purl.org/purl/2603
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Title: | Electron Density Determination of Laser Induced Plasma from Polymethyl Methacrylate Using Phaseshift Detection Technique |
Authors: | Geetha K, Varier Harilal, S S Bindhu, C V Riju, C Issac Nampoori, V P N Vallabhan, C P G Technology |
Keywords: | Laser Induced Plasma Polymethyl Methacrylate |
Issue Date: | 3-Dec-2011 |
Abstract: | Irradiation of a Polymethyl methacrylate target using a pulsed Nd-YAG laser causes plasma formation in the vicinity of the target. The refractive index gradient due to the presence of the plasma is probed using phase-shift detection technique. The phase-shift technique is a simple but sensitive technique for the determination of laser ablation threshold of solids. The number density of laser generated plasma above the ablation threshold from Polymethyl methacrylate is calculated as a function of laser fluence. The number density varies from 2×1016 cm-3 to 2×1017 cm-3 in the fluence interval 2.8-13 J · cm-2. |
URI: | http://dyuthi.cusat.ac.in/purl/2603 |
Appears in Collections: | Dr. V P N Nampoori
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