title: Ring dark solitary waves: experiment versus theory.
abstract: Experimental results on optical ring dark solitary wave dynamics are presented, emphasizing the interplay between initial dark beam contrast, total phase shift, background-beam intensity, and saturation of the nonlinearity. The results are found to confirm qualitatively the existing analytical theory and are in agreement with the numerical simulations carried out.
authors.affiliation: Department of Quantum Electronics, Sofia University, 5 J. Bourchier Boulevard, Bulgaria.
authors.forename: A
authors.initials: A
authors.lastname: Dreischuh
authors.forename: D
authors.initials: D
authors.lastname: Neshev
authors.forename: G G
authors.initials: GG
authors.lastname: Paulus
authors.forename: F
authors.initials: F
authors.lastname: Grasbon
authors.forename: H
authors.initials: H
authors.lastname: Walther