Two-dimensional envelope localized waves in the anomalous dispersion regime.
Narrowband localized wave packets that are nondispersing and nondiffracting in one transverse dimension are characterized in anomalously dispersive media by means of a Fourier approach. Depending on the group velocity, waves with a dispersion relationship characterized by real wavenumbers can be O or X waves, while we also find waves with evanescent wavenumbers.
Malaguti
Stefania
S
Department of Engineering and CNISM, University of Ferrara, Via Saragat 1, 44100 Ferrara, Italy. stefaniaMlg@libero.it
Bellanca
Gaetano
G
Trillo
Stefano
S