Laser induced elastico mechano luminescence of SrAl2O4 : Eu phosphor
Keywords:
Elastico ML, phosphor, infrared laser.Abstract
When γ – irradiated elastic mechano luminescent materials SrAl2O4 : Eu are exposed to 1060 nm infrared pulse of nanosecond duration from CO2 laser, then stress produced in the crystals excites visible luminescence due to piezoelectric field in SrAl2O4 : Eu phosphor because they are non – centro symmetric. In the present investigation SrAl2O4 : Eu crystals are given laser shocks and ML intensity recorded. During laser induced shocks, ML intensity increases linearly with stress and attains a peak value at a particular time and then decays exponentially with time. A theoretical approach has been proposed to explain the experimental results.
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Published
21-11-2012
How to Cite
Prajapati, M. K., Srivastava, A. K., & Raghuvanshi, D. S. (2012). Laser induced elastico mechano luminescence of SrAl2O4 : Eu phosphor. Recent Research in Science and Technology, 4(8). Retrieved from https://updatepublishing.com/journal/index.php/rrst/article/view/958
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