Strong-field effects in bichromatic laser-induced collisional energy transfer

Year: 1995

Authors: Buffa R., Cavalieri S., Eramo R., Fini L., Matera M.

Autors Affiliation: Dipartimento di Fisica, European Laboratory for Nonlinear Spectroscopy, Università di Firenze, Largo Enrico Fermi 2, 50125 Firenze, Italy; Istituto di Elettronica Quantistica, Consiglio Nazionale delle Ricerche, Via Panciatichi 56/30, 50127 Firenze, Italy

Abstract: We discuss a scheme suitable for the study of strong-field effects on the excitation spectrum of the laser-induced collisional energy-transfer process. The use of a weak radiation field, to induce the interatomic transition, and a strong radiation field, to modify the energy-level position, is found to give rise to a splitting of the resonance peak. The position and the relative intensity of the two spectral components are strongly dependent on the intensity and detuning of the strong field. Line-shape calculations performed for the Eu-Sr system show that the effect is expected to be detectable even for moderate intensities of the strong field.


Volume: 52 (2)      Pages from: 1382  to: 1387

KeyWords: Wing behavior; Weak-field; Line-shape; Profiles
DOI: 10.1103/PhysRevA.52.1382

Citations: 6
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