Transparency and Strong Gain Without Population Inversion in Photonic Bandgap Crystals
DU Chun-Guang, HU Zheng-Feng, HOU Chun-Feng, LI Shi-Qun
Department of Physics, Tsinghua University, Beijing 100084
Transparency and Strong Gain Without Population Inversion in Photonic Bandgap Crystals
DU Chun-Guang;HU Zheng-Feng;HOU Chun-Feng;LI Shi-Qun
Department of Physics, Tsinghua University, Beijing 100084
关键词 ：
42.50.Gy ,
42.70.Qs ,
03.67.-a
Abstract ： Without using the weak-field approximation, we investigate the transient properties of a Λ-type atom with one transition near resonant with a photonic bandgap edge. Whatever the initial state of the atom is, the atom can become transparent to a probe field, and strong gain without population inversion is also possible if the atom has been pre-excited. The defect mode formed by atomic doping can have strong effect on the absorption properties of the atom.
Key words ：
42.50.Gy
42.70.Qs
03.67.-a
出版日期: 2002-03-01
:
42.50.Gy
(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
42.70.Qs
(Photonic bandgap materials)
03.67.-a
(Quantum information)
引用本文:
DU Chun-Guang;HU Zheng-Feng;HOU Chun-Feng;LI Shi-Qun. Transparency and Strong Gain Without Population Inversion in Photonic Bandgap Crystals[J]. 中国物理快报, 2002, 19(3): 338-341.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2002/V19/I3/338
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2002, Vol. 19 
