Mette Machholm

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We consider impulsive excitation of a linear polar molecule by a plane polarized electromagnetic "half-cycle" pulse in the terahertz range. A rotational wave packet is created with angular momentum states of different parity. The time evolution of the wave packet corresponds to alternating molecular orientations with respect to the polarization axis of the(More)
Mette Machholm∗1,2, Paul S. Julienne, and Kalle-Antti Suominen Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark Ørsted Laboratory, NBIfAFG, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark National Institute for Standards and Technology, 100 Bureau Drive, Stop 8423, Gaithersburg, MD(More)
Using two identical 110 femtosecond (fs) optical pulses separated by 310 fs, we launch two dissociative wave packets in I2. We measure the square of the wave function as a function of both the internuclear separation, /Psi(R)/(2), and of the internuclear velocity, /Psi(v(R))/(2), by ionizing the dissociating molecule with an intense 20 fs probe pulse.(More)
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