title: Electromagnetic nondiffracting pulses in lossless isotropic plasmalike media.
abstract: We introduce a scheme for describing electromagnetic nondiffracting pulses propagating in isotropic and lossless media characterized by a plasma-like refractive index. A family of nondiffracting waves in a dispersive medium is analytically derived in the form of a generalization of X waves propagating in vacuum. It is also shown how the ratio between pulse width and plasma length has a crucial effect on the pulse dynamics.
authors.affiliation: Istituto Nazionale per la Fisica della Materia, UdR Universitá dell'Aquila, 67010 L'Aquila, Italy. alessandro.ciattoni@aquila.infn.it
authors.forename: Alessandro
authors.initials: A
authors.lastname: Ciattoni
authors.forename: Paolo
authors.initials: P
authors.lastname: Di Porto