Coherent oscillations between orbital angular momentum polariton states in an elliptic resonator

被引：5
作者：
Nardin, Gael [1 ]
Leger, Yoan [1 ]
Pietka, Barbara [1 ]
Morier-Genoud, Francois [1 ]
Deveaud-Pledran, Benoit [1 ]
机构：
[1] Ecole Polytech Fed Lausanne, Lab Optoelect Quant, CH-1015 Lausanne, Switzerland
来源：
JOURNAL OF NANOPHOTONICS | 2011年 / 5卷
基金：
新加坡国家研究基金会;
关键词：
orbital angular momentum; semiconductor microcavity; exciton; polariton; vortex; coherent superposition; ultrafast dynamics; digital holography; SURFACE-EMITTING LASERS; TRANSVERSE-MODES; MICROCAVITIES; VORTICES;
D O I：
10.1117/1.3609825
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We optically excited the eigenmodes of an elliptic resonator in a semiconductor microcavity. Using a pulsed excitation, we created a superposition of eigenmodes, and imaged the temporal evolution of the coherent emission pattern. A semiconductor quantum well was embedded in the microcavity structure. The system was operated in the strong light matter coupling regime, where the eigenmodes are hybrid half-photonic half-excitonic quasiparticles called exciton polaritons. Oscillations between orbital angular momentum states (or vortex states) were observed, and turned out to be remarkably well described within the Poincare sphere representation. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3609825]
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页数：7
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