title: Transient optical modulation with a disperse-red-1-doped polymer film.
abstract: Transient optical modulation properties of a disperse-red-1-doped polymer film are investigated by use of four-wave mixing with two-color light. Interesting behavior is observed for the transient modulation on variation of the two-color light intensities because of competition between the two mechanisms of one-photon (reorientation) and biphoton (isomerization) gratings. Positive and negative modulation as well as double-frequency modulation relative to blue-light input is observed in the experiment. The results may have applications in optical information processing.
authors.affiliation: Department of Physics, University of Massachusetts, Boston, Massachusetts 02125, USA.
authors.forename: P
authors.initials: P
authors.lastname: Wu
authors.forename: D V
authors.initials: DV
authors.lastname: Rao
authors.forename: B R
authors.initials: BR
authors.lastname: Kimball
authors.forename: M
authors.initials: M
authors.lastname: Nakashima
authors.forename: B S
authors.initials: BS
authors.lastname: DeCristofano