We show that new families of two- and three-dimensional nondiffracting Bessel X waves are possible in linear bidispersive optical systems. These X waves can be observed in both bulk and waveguide configurations as well as in photonic crystal lattices that simultaneously exhibit normal and anomalous dispersive–diffractive properties in different spatial or spatiotemporal coordinates.
© 2004 Optical Society of America
Demetrios N. Christodoulides, Nikolaos K. Efremidis, Paolo Di Trapani, and Boris A. Malomed, "Bessel X waves in two- and three-dimensional bidispersive optical systems," Opt. Lett. 29, 1446-1448 (2004)