Subdiffractive light pulses in photonic crystals.
We investigate propagation of light pulses in photonic crystals in the vicinity of the zero diffraction point. We show that Gaussian pulses due to nonzero width of their temporal spectrum spread weakly in space and time during the propagation. We also find the family of nonspreading pulses, propagating invariantly in the vicinity of the zero diffraction point of photonic crystals.
Staliunas
K
K
Institució Catalana de Reserca i Estudis Avançats (ICREA), Departament de Fisica i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Colom 11, E-08222 Terrassa, Barcelona, Spain.
Serrat
C
C
Herrero
R
R
Cojocaru
C
C
Trull
J
J