2011/06/30 by Pierre Béjot, Jérôme Kasparian · 17 citations
Physics and Astronomy · #Advanced Fiber Laser Technologies #Atomic physics #Collimated light #Conical surface #Instability #Kerr effect #Laser #Laser beams #Laser-Matter Interactions and Applications #Laser-Plasma Interactions and Diagnostics #Materials science #Mechanics #Modulational instability #Nonlinear system #Optics #Physics #Protein filament #Quantum mechanics #Self-focusing #physics.optics
paper · pdf · open access · doi:10.1364/ol.36.004812
published in Optics Letters 36(24), 4812 (Optica Publishing Group) · 11 pages, 3 figures, 1 Movie
openalex publication_date 2011/12/14 · arxiv created 2011/12/16 · arxiv updated 2015/03/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We numerically investigate the conical emission (CE) from ultrashort laser filaments, both considering and disregarding the higher-order Kerr effect (HOKE). While the consideration of HOKE has almost no influence on the predicted CE from collimated beams, differences arise for tightly focused beams. This difference is attributed to the different relative contributions of the nonlinear focus and of the modulational instability over the whole filament length.