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Decay kinetic properties of atoms in photonic crystals with absolute gaps

Wang, XH; Gu, BY; Wang, RZ and Xu, Hongqi LU (2003) In Physical Review Letters 91(11: 113904).
Abstract
Decay kinetic properties of a two-level atom near the band edges of photonic crystals (PCs) with absolute gaps are studied based on the Green's function expression for the evolution operator. The local coupling strength between the photons and an atom is evaluated by an exact numerical method. It is found that the decay behavior of an excited atom can be fundamentally changed by the variation of the atomic position: Weisskopf-Wigner and non-Weisskopf-Wigner decay phenomena occur at different atomic positions in the PCs as a result of a significant difference in the local coupling strength. Our finding implies that it is possible to engineer the luminescence spectrum by controlling the atomic position.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
91
issue
11: 113904
publisher
American Physical Society
external identifiers
  • wos:000185288000025
  • scopus:0142057466
ISSN
1079-7114
DOI
10.1103/PhysRevLett.91.113904
language
English
LU publication?
yes
id
bb66b82a-5da4-4b86-861e-2e5fd8963ec6 (old id 301172)
date added to LUP
2007-09-24 07:23:23
date last changed
2018-01-14 03:32:48
@article{bb66b82a-5da4-4b86-861e-2e5fd8963ec6,
  abstract     = {Decay kinetic properties of a two-level atom near the band edges of photonic crystals (PCs) with absolute gaps are studied based on the Green's function expression for the evolution operator. The local coupling strength between the photons and an atom is evaluated by an exact numerical method. It is found that the decay behavior of an excited atom can be fundamentally changed by the variation of the atomic position: Weisskopf-Wigner and non-Weisskopf-Wigner decay phenomena occur at different atomic positions in the PCs as a result of a significant difference in the local coupling strength. Our finding implies that it is possible to engineer the luminescence spectrum by controlling the atomic position.},
  articleno    = {113904},
  author       = {Wang, XH and Gu, BY and Wang, RZ and Xu, Hongqi},
  issn         = {1079-7114},
  language     = {eng},
  number       = {11: 113904},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Decay kinetic properties of atoms in photonic crystals with absolute gaps},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.91.113904},
  volume       = {91},
  year         = {2003},
}