Phase-controlled quantum interference in two-color atomic photoionization

Year: 1997

Authors: Cavalieri S., Eramo R., Fini L.

Autors Affiliation: Dipartimento di Fisica and European Laboratory for Non-Linear Spectroscopy (LENS), Universit`a di Firenze, Largo Enrico Fermi 2, Italy

Abstract: We report evidence of an interference process between two bound-free atomic transitions induced by laser fields. Sodium atoms, initially prepared in the 3P(1/2) excited state, are ionized by a nonresonant three-photon interaction with 1064-nm laser light and by a one-photon interaction with the third-harmonic field, at 355 nm. Interference between the two transition paths allows the control of the total ionization rate by varying the relative phase of the laser fields. The experiment has provided a fringe visibility as high as 42%.

Journal/Review: PHYSICAL REVIEW A

Volume: 55 (4)      Pages from: 2941  to: 2944

KeyWords: Enhanced multiphoton ionization; Laser control; Photodissociation; Transitions; Excitation; Generation; Fields; Xenon
DOI: 10.1103/PhysRevA.55.2941

Citations: 27
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