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High Power Laser and Particle Beams

Coherent control of non-resonant two-photon transition in intense laser field

张晖 Zhang Hui, 侯德亭 Hou Deting, 李霞 Li Xia

Published Jan 1, 2013• 0 citations
Publisher
DOI
10.3788/hplpb20132511.2861

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Abstract Coherent control calculations are presented for a spherically symmetric box potential for non-resonant two photon transition probabilities. With the help of a genetic algorithm (GA), the population of the excited states are maximized and minimized. The external driving field is a superposition of three intensive extreme ultraviolet (XUV) linearly polarized laser pulses with different frequencies in the femtosecond duration range. We solved the quantum mechanical problem within the dipole approximation. Our investigation clearly shows that the dynamics of the electron current has a strong correlation with the optimized and neutralizing pulse shape.
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