6533b81ffe1ef96bd12785c5

RESEARCH PRODUCT

Optical kerr effect in the strong field regime

Pierre BéjotG. KarrasJ. HouzetEric CormierOlivier FaucherBruno LavorelJérôme KasparianEdouard HertzJean-pierre WolfFranck Billard

subject

PhysicsKerr effectMagneto-optic Kerr effectMode-lockingQuantum mechanicsCross-phase modulationFilament propagationOptical polarizationSoliton (optics)Physics::Atomic PhysicsAtomic physicsQ-switching

description

The optical Kerr response of hydrogen atom submitted to a strong and short near infrared laser pulse excitation is studied by solving the full 3D time-dependent Schro¨dinger equation. The nonlinear polarization evaluated at the driving field frequency is compared to the canonical expression derived from perturbation theory. A discrepancy between the two models is observed at large intensity affecting the nonlinear propagation of short and intense laser pulses.

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