title: Finite-difference time-domain analysis of self-focusing in a nonlinear Kerr film.
abstract: By using a finite-difference time-domain method, we analyze self-focusing effects in a nonlinear Kerr film and demonstrate that the near-field intensity distribution at the film surface can reach a stable state at only a few hundred femtoseconds after the incidence of the beam. Our simulations also show that the formation of multiple filamentations in the near-field is quite sensitive to the thickness of the nonlinear film and the power of the laser beam, strongly indicating the existence of nonlinear Fabry-Perot interference effects of the linearly polarized incident light.
authors.forename: Hyun-Ho
authors.initials: HH
authors.lastname: Lee
authors.forename: Kyu-Min
authors.initials: KM
authors.lastname: Chae
authors.forename: Sang-Youp
authors.initials: SY
authors.lastname: Yim
authors.forename: Seung-Han
authors.initials: SH
authors.lastname: Park