Open AccessSpontaneous emission from a Λ-type atom in anisotropic photonic crystal
Author(s) -
Huang Xian-Shan,
Xie Shuang-Yuan,
Yuchen Yang
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.696
Subject(s) - spontaneous emission , photonic crystal , atom (system on chip) , physics , anisotropy , radiative transfer , emission spectrum , atomic physics , photonics , field (mathematics) , radiation , position (finance) , type (biology) , condensed matter physics , optics , spectral line , laser , quantum mechanics , finance , computer science , pure mathematics , economics , biology , embedded system , ecology , mathematics
The spontaneous emission properties of a Λ_type atom embedded in anisotropic photonic crystals are investigated. We find that the dynamical properties of the atom and the propagating characteristics of the radiation field are obviously influenced by the relative position of the upper level from the forbidden gap and the space between the two lower levels. With the help of numerical calculation and theoretical analysis, we plot the evolution of the total radiation field and its components with the time. Furthermore, we also study the influence of photonic crystals on radiative properties of the atom by means of spontaneous emission spectrum.