title: Interference-induced peak splitting in extreme ultraviolet superfluorescence.
abstract: We investigate the laser-induced quantum interference in extreme ultraviolet superfluorescence (SF) occurring in a dense gas of Λ-type helium atoms coupled by a coherent laser field in the visible region. Due to the constructive interatomic and intraatomic interferences, the SF can split in two pulses conveniently controlled by the gas density and intensity of the driving field, suggesting potential applications for pump-probe experiments.
authors: Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, Heidelberg D-69117, Germany.
authors: Ni
authors: N
authors: Cui
authors: Christoph H
authors: CH
authors: Keitel
authors: Mihai
authors: M
authors: Macovei