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TY - JOUR
AU - Prajapati, M K
AU - Srivastava, A K
AU - Raghuvanshi, D S
PY - 2012/11/21
Y2 - 2025/09/23
TI - Laser induced elastico mechano luminescence of SrAl2O4 : Eu phosphor
JF - Recent Research in Science and Technology
JA - RRST
VL - 4
IS - 8
SE - Articles
DO -
UR - https://www.updatepublishing.com/journal/index.php/rrst/article/view/958
SP -
AB - <p class="MsoNormal" style="text-align: justify;">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. </p>
ER -