Conti Claudio, Peccianti Marco, Assanto Gaetano
NOOEL--Nonlinear Optics and OptoElectronics Laboratory, National Institute for the Physics of the Matter (INFM), University Roma Tre, Via della Vasca Navale 84, 00146 Rome, Italy.
Phys Rev Lett. 2004 Mar 19;92(11):113902. doi: 10.1103/PhysRevLett.92.113902. Epub 2004 Mar 17.
We report on the observation and quantitative assessment of self-trapped pulsating beams in a highly nonlocal nonlinear regime. The experiments were conducted in nematic liquid crystals and allow a meaningful comparison with the prediction of a scalar theory in the perturbative limit, while addressing the need for beyond-paraxial analytical treatments.