Demonstration of superluminal effects in an absorptionless, nonreflective system.
We present an experimental and theoretical study of a simple, passive system consisting of a birefringent, two-dimensional photonic crystal and a polarizer in series, and show that superluminal dispersive effects can arise even though no incident radiation is absorbed or reflected. We demonstrate that a vector formulation of the Kramers-Kronig dispersion relations facilitates an understanding of these counterintuitive effects.
Solli
D R
DR
Department of Physics, University of California, Berkeley, California 94720-7300, USA.
McCormick
C F
CF
Ropers
C
C
Morehead
J J
JJ
Chiao
R Y
RY
Hickmann
J M
JM