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Mashayekhi asl A, Anaraki M, Miri S, Rahimzadeh N, Mashayekhi asl J. The effect of Surface roughness on Laser Induced Damage Threshold of Ag metal layers. ICOP & ICPET _ INPC _ ICOFS 2018; 24 :749-752
URL: http://opsi.ir/article-1-1526-en.html
URL: http://opsi.ir/article-1-1526-en.html
Ali Mashayekhi asl * 
1, Mahdi Anaraki1 , Sadegh Miri1 , Nazli Rahimzadeh1 , Jahanbakhsh Mashayekhi asl1
1, Mahdi Anaraki1 , Sadegh Miri1 , Nazli Rahimzadeh1 , Jahanbakhsh Mashayekhi asl1
1- Iranian National Center for Laser Science and Technology
Abstract: (1956 Views)
In this research the effect of roughness was investigated on Laser Induced Damage Threshold. For this work, four silver layers with different roughness were used. Thin silver layers were deposited by magnetron sputtering method. The thickness of all samples was 150nm. The surface quality of mirrors was investigated by Zeiss optical microscope and then, their morphologies were study by AFM microscope. Finally, Laser Induced Damage Threshold (LIDT) test was performed for all Ag mirrors by 250W, CW, Nd:YAG laser. The results show that surface roughness has direct effect on amount of LIDT, and high amount of roughness will decrease the damage threshold.
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