V.D. Sonwane, A.S. Gour, B.P. Chandra
School of Studies in Physics and Astrophysics, Pt. Ravishankar Shukla University, Raipur - 492010, India
School of Studies in Electronicsand Pbotonics, Pt. Ravishankar Shukla University,Raipur - 492010, India
Volume - 27,
Issue - 1,
Year - 2014
The paper reports the laser shock wave - induced visible mechanoluminescence from fine grained metals then the front side of fine grained metal sample is irradiated with infrared laser pulses, the ML glow is produced in back end of the sample. On the basis of laser shock wave - induced temperature, the expression is derived for the temperature induced thermal stress. Expression is derived for the correlation between the thermal stress and the laser power density which indicates that the temperature induced thermal stress is directly related to the incident laser power density for a given thickness of studied metal. Expression is also derived for the dependence of the threshold thermal stress for mechanoluminescence on the thickness of studied metal. Finally, expression is derived fur the laser power dependence of the ML intensity in which good agreement is found between the theoretical and experimental results.
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Cite this article:
Sonwane, Gour and Chandra (2014). Laser Shock Wave- Induced Visible Mechanoluminescence from Fine Grained Metals. Journal of Ravishankar University (Part-B: Science), 27(1), pp. 102-107.