摘要
利用半经典理论研究了N-型四能级相干原子的瞬态光学特性。理论分析表明:当信号光开启的瞬间,介质对探针光的非线性吸收从接近于零的状态迅速增加,经过驰豫振荡过程,趋于稳定状态。本文的研究结果将为吸收型光子开关的设计提供理论依据和参考。
Using semi-classical theory, we study a transient behavior in N-type four-level atoms with coherent system. The theoretical analysis show that the nonlinear absorption for the probe light in the coherent atoms increases from zero to the steady state through a relaxation oscillation process when signal light is switched on. Our results will provide benefits for design of absorptive switching.
出处
《量子光学学报》
CSCD
2003年第3期121-125,共5页
Journal of Quantum Optics
基金
国家自然科学基金(No.060238010
No.19974021)
山西省自然科学基金(No.20031007)
关键词
四能级原子
量子相干效应
瞬态光学特性
量子光学
吸收型光子开关
Electromagnetically induced transparency (EIT)
Quantum Interference effect
transient optical properties