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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 &gamma; &ndash; 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 &ndash; centro symmetric.&nbsp; 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.&nbsp;</p> ER -