Wu Shenjiang, Wang Nan, Su Junhong, et al. Laser-induced damage of diamond-like carbon films with horizontal electric field[J]. High Power Laser and Particle Beams, 2015, 27: 092003. doi: 10.11884/HPLPB201527.092003
Citation:
Wu Shenjiang, Wang Nan, Su Junhong, et al. Laser-induced damage of diamond-like carbon films with horizontal electric field[J]. High Power Laser and Particle Beams, 2015, 27: 092003. doi: 10.11884/HPLPB201527.092003
Wu Shenjiang, Wang Nan, Su Junhong, et al. Laser-induced damage of diamond-like carbon films with horizontal electric field[J]. High Power Laser and Particle Beams, 2015, 27: 092003. doi: 10.11884/HPLPB201527.092003
Citation:
Wu Shenjiang, Wang Nan, Su Junhong, et al. Laser-induced damage of diamond-like carbon films with horizontal electric field[J]. High Power Laser and Particle Beams, 2015, 27: 092003. doi: 10.11884/HPLPB201527.092003
Diamond-like carbon (DLC) films are widely used in infrared region. However, DLC is prone to laser damage, which fetters the films usage in infrared high power laser systems and laser protection systems. The laser-induced damage threshold (LIDT) and damage morphology of DLC films were studied based on ISO11254 in different horizontal fields. Ti electrodes were deposited on the DLC films directly. It was found that the field intensity increased from 0 to 700 V/cm and the LIDT also increased; however, the LIDT was relatively unchanged over this horizontal field. Analysis suggests that the horizontal electric field changes the photo-induced carriers drift velocity in DLC films laser-induced area, then reduces the local heat accumulation, slows down the graphitization process in DLC films, and increases the laser-induced damage threshold of DLC film at last.
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