Controllable spontaneous emission from a double Λ-type four-level atom in an anisotropic photonic crystal

被引：7

作者：

Ding, Chunling ^{[1
]}

Li, Jiahua

Yang, Xiaoxue

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2011年 / 284卷 / 19期

基金：

中国国家自然科学基金;

关键词：

Spontaneous emission; Photonic crystal (PC); Spectral-line enhancement and narrowing; QUANTUM INTERFERENCE; 3-LEVEL ATOM; POPULATION-INVERSION; SPECTRUM; DRIVEN; LASERS; PHASE;

D O I：

10.1016/j.optcom.2011.06.003

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The spontaneous emission behavior of a double Lambda-type four-level atom embedded in a photonic crystal (PC) with anisotropic dispersion relations is investigated. It is shown that some interesting phenomena such as the spectral-line enhancement, the spectral-line narrowing, the spectral-line suppression and the spontaneous emission cancellation can be observed by adjusting the density of states of the photonic-band-gap (PBG) reservoir and the combination of two pump intensities. The proposed scheme can be achieved by use of coherent pump fields into the transitions from the upper levels to the ground level in rubidium atom confined in a PC. These theoretical investigations may provide more degrees of freedom to manipulate the atomic spontaneous emission. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：4550 / 4557

页数：8

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