瞬态下GaAs/AlGaAs多量子阱中的电磁诱导透明和慢光

Electromagnetically-induced transparency and slow light in GaAs/AlGaAs multiple quantum wells in a transient regime.

作者信息

Ma Seong-Min, Xu Hua, Ham Byoung Seung

机构信息

Center for Photon Information Processing, Graduate School of Information and Telecommunications, Inha University, Incheon 402-751, South Korea.

出版信息

Opt Express. 2009 Aug 17;17(17):14902-8. doi: 10.1364/oe.17.014902.

DOI:10.1364/oe.17.014902

PMID:19687969

Abstract

Electromagnetically-induced transparency (EIT) is observed and analyzed for the group velocity of a femtosecond light pulse interacting with GaAs/AlGaAs multiple quantum wells (MQWs) in a transient regime. The calculated slowdown factor of the group velocity inside the medium due to the dynamic refractive index change is approximately 2.10 x 10(3). We discuss the potential of EIT-induced slow light in GaAs/AlGaAs MQWs for ultrafast (approximately 210 GHz) all-optical information processing such as photon routing.

摘要

在瞬态状态下，对飞秒光脉冲与GaAs/AlGaAs多量子阱（MQW）相互作用时的群速度进行了电磁诱导透明（EIT）的观测与分析。由于动态折射率变化导致介质内部群速度的计算减速因子约为2.10×10³。我们讨论了GaAs/AlGaAs多量子阱中EIT诱导慢光在超快速（约210GHz）全光信息处理（如光子路由）方面的潜力。