Volume 6 Issue 1
Feb.  2013
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WANG Ming, WANG Ting-feng, SHAO Jun-feng. Analysis of femtosecond laser induced damage to array CCD camera[J]. Chinese Optics, 2013, 6(1): 96-102. doi: 10.3788/CO.20130601.0096
Citation: WANG Ming, WANG Ting-feng, SHAO Jun-feng. Analysis of femtosecond laser induced damage to array CCD camera[J]. Chinese Optics, 2013, 6(1): 96-102. doi: 10.3788/CO.20130601.0096

Analysis of femtosecond laser induced damage to array CCD camera

doi: 10.3788/CO.20130601.0096
  • Received Date: 15 Sep 2012
  • Rev Recd Date: 13 Nov 2012
  • Publish Date: 10 Feb 2013
  • The disturbing and damage effects of a femtosecond laser on the CCD camera were researched. A laser pulse with a wavelength of 800 nm, pulse width of 100 fs and a single pulse energy of 500 J was used to radiate an interline CCD solid-state image sensor and the damage threshold was measured in the experiment. The phenomenon of the point damage, line damage and the whole target surface damage were observed while increasing the energy of reaching CCD target surface, and the corresponding damage thresholds were 151.2 mJ/cm2, 508.2 mJ/cm2 and 5.91 J/cm2, respectively. In the different damage situations of the CCD, the resistance values between the clock signal lines, and between the clock signal line and the ground were measured. By contrasting the resistance values of the CCD before and after the damage, it was found that the resistance values between the vertical transfer clock signal lines decreased significantly, and the same results were achieved between the vertical transfer clock signal line and the ground. At last, the damage position and the damage mechanism were discussed.

     

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