title: Direct measurement of the transverse velocity of dark spatial solitons.
abstract: We describe the direct experimental measurement of the transverse propagation velocities of dark spatial solitons. Good agreement is obtained from a comparison of the velocities measured experimentally and the velocities predicted by the two-dimensional theory of Zakharov and Shabat [Sov. Phys. JETP 37, 823 (1973)].
authors.forename: D R
authors.initials: DR
authors.lastname: Andersen
authors.forename: D E
authors.initials: DE
authors.lastname: Hooton
authors.forename: G A
authors.initials: GA
authors.lastname: Swartzlander
authors.forename: A E
authors.initials: AE
authors.lastname: Kaplan