TY - JOUR
T1 - Spontaneous emission from a Λ three-level atom in an anisotropic photonic crystal
AU - Yang, Yaping
AU - Li, Gaoxiang
AU - Chen, Hong
AU - Zhu, Shi Yao
N1 - Funding Information:
This work was supported in part by the National Natural Science Foundation of China (Grant No. 60478049), the 973 Project of Ministry of Science and Technology of China, and the Phosphor Tracing Plan of Shanghai Science Committee (Grant Nos. 04QMH1407).
PY - 2006/9/15
Y1 - 2006/9/15
N2 - The spontaneous emission properties of a Λ type atom embedded in a three-dimensional anisotropic photonic crystal are investigated. Only one of the two atomic transition frequencies is considered near the photonic band edge. The atomic decay properties such as the time-evolution of the excited-state population and the instant and effective decay rates are studied in detail. It is found that there exists a wide region for the difference of the transition frequency from the band edge, in which only diffusion fields with frequencies being near or far away from the band edge appear in the emitted field. The spontaneous emitted field and its spectrum depend not only on the detuning of the transition frequency from the band edge, but also on the distance from the atom. Therefore, during the propagating process, the propagating field is partially transferred into the diffusion field.
AB - The spontaneous emission properties of a Λ type atom embedded in a three-dimensional anisotropic photonic crystal are investigated. Only one of the two atomic transition frequencies is considered near the photonic band edge. The atomic decay properties such as the time-evolution of the excited-state population and the instant and effective decay rates are studied in detail. It is found that there exists a wide region for the difference of the transition frequency from the band edge, in which only diffusion fields with frequencies being near or far away from the band edge appear in the emitted field. The spontaneous emitted field and its spectrum depend not only on the detuning of the transition frequency from the band edge, but also on the distance from the atom. Therefore, during the propagating process, the propagating field is partially transferred into the diffusion field.
UR - http://www.scopus.com/inward/record.url?scp=33748046824&partnerID=8YFLogxK
U2 - 10.1016/j.optcom.2006.03.059
DO - 10.1016/j.optcom.2006.03.059
M3 - Journal article
AN - SCOPUS:33748046824
SN - 0030-4018
VL - 265
SP - 559
EP - 575
JO - Optics Communications
JF - Optics Communications
IS - 2
ER -