6533b7d0fe1ef96bd125a9f0

RESEARCH PRODUCT

Controlling rotational dynamics of molecules by shaped ultra-short laser pulses

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This manuscript presents various studies falling under the set of themes of coherent control. We establish, as well theoretically as in experiments, the possibility of finely handling the rotational dynamics of linear molecules. In order to operate this handling, the ultra-short pulses are shaped by a pulse shaper. Its principle and its installation are described in a detailed way. The rotational dynamics of the linear nitrogen molecule (N2) is handled while exploiting the relative excitation between the even and odd rotational components of the wavepacket in weak mode of field. That, we chose a periodic phase modulation well defined of the exiting pulse. A temporal analysis comes to clarify under another angle the experimental results. An extension of the control strategy to the mode of strong field makes it possible to control molecular alignment dynamics.