TY - JOUR
T1 - Optical pulse dynamics in active metamaterials with positive and negative refractive index
AU - Korotkevich, Alexander O.
AU - Rasmussen, Kathryn E.
AU - Kovačič, Gregor
AU - Roytburd, Victor
AU - Maimistov, Andrei I.
AU - Gabitov, Ildar R.
PY - 2013/4
Y1 - 2013/4
N2 - We study numerically the propagation of two-color light pulses through a metamaterial doped with active atoms such that the carrier frequencies of the pulses are in resonance with two atomic transitions in the Λ configuration and that one color propagates in the regime of positive refraction and the other in the regime of negative refraction. In such a metamaterial, one resonant color of light propagates with positive and the other with negative group velocity. We investigate nonlinear interaction of these forward- and backward-propagating waves and find selftrapped waves, counterpropagating radiation waves, and hot spots of medium excitation.
AB - We study numerically the propagation of two-color light pulses through a metamaterial doped with active atoms such that the carrier frequencies of the pulses are in resonance with two atomic transitions in the Λ configuration and that one color propagates in the regime of positive refraction and the other in the regime of negative refraction. In such a metamaterial, one resonant color of light propagates with positive and the other with negative group velocity. We investigate nonlinear interaction of these forward- and backward-propagating waves and find selftrapped waves, counterpropagating radiation waves, and hot spots of medium excitation.
UR - https://www.scopus.com/pages/publications/84877628995
UR - https://www.scopus.com/pages/publications/84877628995#tab=citedBy
U2 - 10.1364/JOSAB.30.001077
DO - 10.1364/JOSAB.30.001077
M3 - Article
AN - SCOPUS:84877628995
SN - 0740-3224
VL - 30
SP - 1077
EP - 1084
JO - Journal of the Optical Society of America B: Optical Physics
JF - Journal of the Optical Society of America B: Optical Physics
IS - 4
ER -