title: Laser-induced diffraction rings from a nematic-liquid-crystal film.
abstract: Multiple diffraction rings appear as a cw laser beam passes through a homeotropic nematic film. The phenomenon is shown to be the result of spatial self-phase modulation that is due to the laser-induced Freedericksz transition.
authors.forename: S D
authors.initials: SD
authors.lastname: Durbin
authors.forename: S M
authors.initials: SM
authors.lastname: Arakelian
authors.forename: Y R
authors.initials: YR
authors.lastname: Shen