Ultralow-light-level all-optical transistor in rubidium vapor

被引：10
|
作者：
Jing, Jietai [1 ,2 ]
Zhou, Zhifan [1 ,2 ]
Liu, Cunjin [1 ,2 ]
Qin, Zhongzhong [1 ,2 ]
Fang, Yami [1 ,2 ]
Zhou, Jun [1 ,2 ]
Zhang, Weiping [1 ,2 ]
机构：
[1] E China Normal Univ, Dept Phys, State Key Lab Precis Spect, Shanghai 200062, Peoples R China
[2] E China Normal Univ, Quantum Inst Light & Atoms, Dept Phys, Shanghai 200062, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 15期
基金：
中国国家自然科学基金;
关键词：
INDUCED TRANSPARENCY; ATOMIC ENSEMBLES; SINGLE ATOMS; PHOTON; CAVITY;
D O I：
10.1063/1.4871384
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An all-optical transistor (AOT) is a device in which one light beam can efficiently manipulate another. It is the foundational component of an all-optical communication network. An AOT that can operate at ultralow light levels is especially attractive for its potential application in the quantum information field. Here, we demonstrate an AOT driven by a weak light beam with an energy density of 2.5 x 10(-5) photons/(lambda(2)/2 pi) (corresponding to 6 yJ/(lambda(2)/2 pi) and about 800 total photons) using the double-Lambda four-wave mixing process in hot rubidium vapor. This makes it a promising candidate for ultralow-light-level optical communication and quantum information science. (C) 2014 AIP Publishing LLC.
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页数：4
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