Saturation of charge-coupled devices irradiated by laser out of the field of view

摘要

Abstract: When the laser beam is out of the field of view (FOV) of charge-coupled devices (CCD) camera, part of the laser energy will also reach on the photoactive area because of the scattering and diffraction effects. If the intensity is high enough, CCD will be in saturation. How and to what degree the scattering and diffraction effects will disturb the CCD is analyzed. The results of experiments are given as well. Considering the contribution of the laser out of the FOV, the disturbing range will be enlarged. Estimation has been done.!3