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Laser control of third-harmonic generation by means of an additional EM field |
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| Authors: | O. Faucher D. Charalambidis C. Fotakis |
| Affiliation: | (1) Foundation for Research and Technology, Hellas, Institute of Electronic Structure and Laser, Heraklion, PO Box 1527, 71110 Crete, Greece;(2) Department of Physics, University of Crete, Greece;(3) Present address: Laboratoire de Physique, CNRS-URA 1796, Université de Bourgogne, 6 Bd Gabriel, 21000 Dijon, France |
| Abstract: | Control of the third-harmonic generation process through an external electromagnetic field is observed in atomic Ca. The conversion efficiency can be modified when the third harmonic is produced in the vicinity of an autoionizing state. A second laser is used to produce strong radiative coupling between a low-lying bound state and the autoionizing state. |
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