Femtosecond Laser-Induced Damage and Filamentary Propagation in Fused Silica

Abstract : Bulk damage induced by fs IR laser pulses in silica is investigated both experimentally and numerically. In a strong focusing geometry, a first damage zone is followed by a narrow track with submicron width, indicating a filamentary propagation. The shape and size of the damage tracks are shown to correspond to the zone where the electron density created by optical field ionization and avalanche is close to 1020  cm-3. The relative role of avalanche and photoionization is studied. The plasma density produced in the wake of the pulse is shown to saturate around 2–4×1020  cm-3.
Document type :
Journal articles
Complete list of metadatas

https://hal-polytechnique.archives-ouvertes.fr/hal-00463673
Contributor : Aurélien Houard <>
Submitted on : Sunday, March 14, 2010 - 1:52:29 PM
Last modification on : Wednesday, July 3, 2019 - 10:48:02 AM

Identifiers

Collections

Citation

Lionel Sudrie, Arnaud Couairon, Michel Franco, Brigitte Lamouroux, Bernard Prade, et al.. Femtosecond Laser-Induced Damage and Filamentary Propagation in Fused Silica. Physical Review Letters, American Physical Society, 2002, 89 (18), pp.186601. ⟨10.1103/PhysRevLett.89.186601⟩. ⟨hal-00463673⟩

Share

Metrics

Record views

423