TY - JOUR
T1 - Spontaneous radiation of a finite-size dipole emitter in hyperbolic media
AU - Poddubny, Alexander N.
AU - Belov, Pavel A.
AU - Kivshar, Yuri S.
PY - 2011/8/8
Y1 - 2011/8/8
N2 - We study the radiative decay and Purcell effect for a finite-size dipole emitter placed in a homogeneous uniaxial medium. We demonstrate that the radiative rate is strongly enhanced when the signs of the medium longitudinal and transverse dielectric constants are opposite, and that the isofrequency contour corresponds to a hyperbolic medium. We reveal that the Purcell enhancement factor remains finite even in the absence of losses and that it depends on the emitter size.
AB - We study the radiative decay and Purcell effect for a finite-size dipole emitter placed in a homogeneous uniaxial medium. We demonstrate that the radiative rate is strongly enhanced when the signs of the medium longitudinal and transverse dielectric constants are opposite, and that the isofrequency contour corresponds to a hyperbolic medium. We reveal that the Purcell enhancement factor remains finite even in the absence of losses and that it depends on the emitter size.
UR - http://www.scopus.com/inward/record.url?scp=80051657078&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.84.023807
DO - 10.1103/PhysRevA.84.023807
M3 - Article
SN - 1050-2947
VL - 84
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 2
M1 - 023807
ER -