Adhikari, S. K.2014-05-202014-05-202004-09-01Physical Review E. College Pk: Amer Physical Soc, v. 70, n. 3, 4 p., 2004.1539-3755http://hdl.handle.net/11449/23695Using the numerical solution of the nonlinear Schrodinger equation and a variational method, it is shown that (3+1)-dimensional spatiotemporal optical solitons, known as light bullets, can be stabilized in a layered Kerr medium with sign-changing nonlinearity along the propagation direction.4engArtigo10.1103/PhysRevE.70.036608WOS:000224302300093Acesso abertoWOS000224302300093.pdf8031087349809439