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论文类型：期刊论文

发表刊物：Phys. Rev. Lett.

所属单位：DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, Building 343, DK-

刊物所在地：美国

学科门类：工学

项目来源：自然科学基金

文献类型：J

卷号：108

期号：7

页面范围：077405

关键字：无

DOI码：10.1103/PhysRevLett.108.077405

发表时间：2012-02-17

摘要：We introduce dielectric elliptical photonic nanowires to funnel efficiently the spontaneous emission of an embedded emitter into a single optical mode. Inside a wire with a moderate lateral aspect ratio, the electromagnetic environment is largely dominated by a single guided mode, with a linear polarization oriented along the ellipse major axis. The resulting monomode spontaneous emission is maintained over a broad wavelength range, a key asset of this 1D photonic structure. Our theoretical analysis is completed by an experimental study of GaAs elliptical photonic wires with embedded InAs quantum dots. In particular, the fraction of collected photons with the desired linear polarization can exceed 95%.

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发布期刊链接：https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.108.077405