Femtosecond filament amplification in liquids

Ciro d'Amico (1) , Bernard Prade (1) , Michel Franco (1) , André Mysyrowicz (1)

1 LOA - Laboratoire d'optique appliquée

We study the femtosecond filamentation in a liquid amplifying medium, sulphorhodamine 640 in a methanol solvent. In the presence of population inversion, the energy of the filament increases while its diameter expands because of peak intensity clamping.

Keywords: filamentation; nonlinear optics

Domains: Physics [physics]; Physics [physics]; Optics [physics.optics]

Ciro d'Amico, Bernard Prade, Michel Franco, André Mysyrowicz. Femtosecond filament amplification in liquids. Applied Physics B - Laser and Optics, 2006, 85 (1), pp.49-53. ⟨10.1007/s00340-006-2276-0⟩. ⟨hal-00461559⟩