【摘 要】
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Laser induced damage experiment fs carried out on a large aperture laser facility.Severe damage is observed on a large-aperture fused silica grating which prese
【机 构】
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Research Center of Laser Fusion,China Academy of Engineering Physics,Mianyang 621900
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Laser induced damage experiment fs carried out on a large aperture laser facility.Severe damage is observed on a large-aperture fused silica grating which presents dense craters on the front surface and six cracks alteatively located at the front and the rear surface.The bizarre fact about the damage on the grating is that,unlike other optics,the damage craters are almost on the front surface.According to observation,damage phenomenon is due to the stimulated Brillouin scattering(SBS)effect occurring in the grating,which includes the transverse SBS,the back SBS and the zigzag SBS.
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