Collapse-driven spatiotemporal dynamics of filament formation
classification
⚛️ physics.optics
keywords
dynamicsspatiotemporalappearaxialbeamcollapsecollapse-drivenconical
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The transition from spatial to spatiotemporal dynamics in Kerr-driven beam collapse is modelled as the instability of the Townes profile. Coupled axial and conical radiation, temporal splitting and X waves appear as the effect of Y-shaped unstable modes, whose growth is experimentally detected.
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