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FT-CCD的纳秒脉冲激光毁伤效应

Infrared and Laser Engineering(2017)

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Abstract
用1064 nm波长8 ns脉宽激光,以1-on-1模式辐照在评估板驱动工作下的FT50M型FT-CCD图像传感器进行实验.结果显示,随着脉冲能量密度的逐渐提高,在FT-CCD输出图像中依次出现辐照点单侧黑线、白点、两侧白线等典型毁伤现象.这区别于IT-CCD在脉冲激光辐照下依次出现白点、白线的毁伤过程.通过对比FT-CCD与IT-CCD的结构异同,结合已知的IT-CCD的毁伤机制,分析认为单侧黑线毁伤现象的首先出现表明了FT-CCD多晶硅电极先于硅衬底受损的激光毁伤模式.文中丰富了对CCD图像传感器激光毁伤效应的认识,为深入探索CCD激光毁伤机制提供了新的线索.
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Key words
nanosecond pulse laser,ft-ccd
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