On-Chip Generation, Routing, and Detection of Resonance Fluorescence

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• 作者：G. Reithmaier ; M. Kaniber ; F. Flassig ; S. Lichtmannecker ; K. M眉ller ; A. Andrejew ; J. Vu膷kovi膰 ; R. Gross ; J. J. Finley
• 刊名：Nano Letters
• 出版年：2015
• 出版时间：August 12, 2015
• 年：2015
• 卷：15
• 期：8
• 页码：5208-5213
• 全文大小：410K
• ISSN：1530-6992

文摘

Quantum optical circuits can be used to generate, manipulate, and exploit nonclassical states of light to push semiconductor based photonic information technologies to the quantum limit. Here, we report the on-chip generation of quantum light from individual, resonantly excited self-assembled InGaAs quantum dots, efficient routing over length scales 鈮? mm via GaAs ridge waveguides, and in situ detection using evanescently coupled integrated NbN superconducting single photon detectors fabricated on the same chip. By temporally filtering the time-resolved luminescence signal stemming from single quantum dots we use the quantum optical circuit to perform time-resolved excitation spectroscopy on single dots and demonstrate resonance fluorescence with a line-width of 10 卤 1 渭eV; key elements needed for the use of single photons in prototypical quantum photonic circuits.