Measured pulse duration and band-gap scaling of the laser breakdown threshold in oxide dielectrics is explained by multiphoton and impact ionization, and relaxation. Formation of self-trapped excitons on a sub-ps time scale is observed.
© 2004 Optical Society of America
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3330) Lasers and laser optics : Laser damage
(320.0320) Ultrafast optics : Ultrafast optics
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors
M. Mero, J. Liu, A. J. Sabbah, J. Zeller, P. M. Alsing, J. K. McIver, J. Jasapara, and W. Rudolph, "Scaling laws of femtosecond laser induced breakdown in dielectric films," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2004), paper CThD4.
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