Control of energy deposition in femtosecond laser dielectric interactions

Jiahui Peng , David Grojo (1) , David M. Rayner , Paul B. Corkum

1 LP3 - Laboratoire Lasers, Plasmas et Procédés photoniques

There are natural limits to the spatial resolution and the deposited energy densities that can be achieved in femtosecond laser dielectric modification. These arise because of the threshold-like nature of nonlinear absorption. We use two-pulse experiments to show that both limits can be exceeded by taking advantage of absorption seeded by free electrons or self-trapped excitons, depending on the pulse separation. (C) 2013 AIP Publishing LLC [http://dx.doi.org/10.1063/1.4802820]

Domaines: Optique / photonique

Jiahui Peng, David Grojo, David M. Rayner, Paul B. Corkum. Control of energy deposition in femtosecond laser dielectric interactions. Applied Physics Letters, 2013, 102 (16), ⟨10.1063/1.4802820⟩. ⟨hal-01418589⟩