Open AccessQuntum interference of four-level atomic system embedded in photonic band gap structure
Author(s) -
Fang Yuan-Feng,
Du Chun-Guang,
Shiqun Li
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.55.4652
Subject(s) - electromagnetically induced transparency , spontaneous emission , photonics , photonic crystal , photon , physics , optoelectronics , amplified spontaneous emission , atomic system , interference (communication) , transient (computer programming) , optics , materials science , laser , channel (broadcasting) , telecommunications , computer science , operating system
We study the steady and transient optical properties of electromagnetically induced transparency(EIT), spontaneous emission, and the photonic switching for a four-level atomic system embedded in photonic band gap(PBG) structures. The theoretical analysis shows that a special density of modes (DOM) can induce abnormal spectrum of absorption, dispersionspontaneous emission and transient gain without inversion, and they can be controlled by an externally applied coherent light. Furthermore, we discuss the effects of the nonsingular DOM on the EIT windows and on the photon switch in detail.