Ultrafast Photon-Photon Interaction in a Strongly Coupled Quantum Dot-Cavity System

被引：151
|
作者：
Englund, Dirk [1 ,2 ,3 ]
Majumdar, Arka [1 ]
Bajcsy, Michal [1 ]
Faraon, Andrei [1 ]
Petroff, Pierre [4 ]
Vuckovic, Jelena [1 ]
机构：
[1] Stanford Univ, EL Ginzton Lab, Stanford, CA 94305 USA
[2] Columbia Univ, Dept Elect Engn, New York, NY 10027 USA
[3] Columbia Univ, Dept Appl Phys, New York, NY 10027 USA
[4] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA
来源：
PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 09期
基金：
美国国家科学基金会;
关键词：
PHASE-SHIFTS; NANOCAVITY;
D O I：
10.1103/PhysRevLett.108.093604
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study dynamics of the interaction between two weak light beams mediated by a strongly coupled quantum dot-photonic crystal cavity system. First, we perform all-optical switching of a weak continuous-wave signal with a pulsed control beam, and then perform switching between two weak pulsed beams (40 ps pulses). Our results show that the quantum dot-nanocavity system enables fast, controllable optical switching at the single-photon level.
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页数：4
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