title: Coherent quantum control of excitons at ultracold and high density in Cu2O with phase manipulated pulses.
abstract: By phase manipulation of a short laser pulse, it is possible to selectively generate ultracold excitons in a two-photon process while quenching the multiphoton excitation of hot electrons and holes. We show how this technique allows us to suppress the heating of n=1 orthoexcitons in Cu(2)O at high density. Using a laser pulse having an energy of a few microJ and duration of 100 fs, we are thus able to produce a cold exciton gas up to a density of 10(15) cm(-3).
authors.affiliation: Department of Applied Physics, The University of Tokyo, and CREST-JST, Tokyo, Japan.
authors.forename: Takuro
authors.initials: T
authors.lastname: Ideguchi
authors.forename: Kosuke
authors.initials: K
authors.lastname: Yoshioka
authors.forename: Andre
authors.initials: A
authors.lastname: Mysyrowicz
authors.forename: Makoto
authors.initials: M
authors.lastname: Kuwata-Gonokami