title: Time reversal of optical pulses by four-wave mixing.
abstract: Four-wave mixing with optical pulses is considered analytically. It is shown that, whereas true time reversal of an amplitude pulse is not possible with continuous-wave pumping, this can be achieved by short-pulse pumping of a long, narrow, nonlinear medium, although time-dependent phase variations are not time reversed.
authors.affiliation: Department of Physics, Heriot-Watt University, Riccarton, Currie, Edinburgh EH144 AS, Great Britain.
authors.forename: D A
authors.initials: DA
authors.lastname: Miller