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The Rochester Conferences on Coherence and Quantum Optics and the Quantum Information and Measurement meeting

Harmonics Generation on Three-Level Atomic Systems at the Multiphoton Resonant Interaction with Laser Fields

H. K. Avetissian, B. R. Avchyan, G. F. Mkrtchian

Published Jan 1, 2007• 0 citations
Publisher

Abstract

Coherent light scattering by a three-level atom due to multiphoton resonant excitation by laser radiation is studied towards the coherent shortwave radiation generation. The spectrum corresponding to harmonics generation is investigated both analytically and numerically.
DOI
10.1364/cqo.2007.cmi20

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The multiphoton resonant excitation of three-level atoms in a strong laser field is investigated. The creation of various superposition states is shown. For implementation of these effects either the mean dipole moment in the excited states of an atom or, in three-level systems, a transition dipole moment between excited states (with energies close enough to each other) must be nonzero. The time evolution of the system is found using a nonperturbative resonant approach. Our calculations for the hydrogen atom suggest that by the appropriate optical pulses with moderate strong intensities one can achieve various superposition states by multiphoton resonant excitation.