Field-free molecular alignment control of filamentation


Abstract: With an approach of controlling the nonlinearity of medium rather than the light field, the effect of field-free molecular alignment on filamentation and resulting white-light generation is studied. This is done by measuring the rotational wavepacket evolution of nitrogen molecules after passing of a femtosecond laser pump pulse by observing the nonlinear propagation dynamics of a variably delayed filament-producing probe pulse.

Keywords: Atomic and molecular physics, ultrafast nonlinear optics, femtosecond phenomena, ultrafast measurements

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