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arXiv 0910.4658cond-mat.mes-hall
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将外延量子点耦合到基于光纤的外镜微腔

Coupling an epitaxial quantum dot to a fiber-based external-mirror microcavity

Andreas Muller, Edward B. Flagg, Michael Metcalfe, John Lawall, Glenn S. Solomon

摘要:

我们报道了单个InAs量子点(QD)与外镜微腔的耦合。外部反射镜被粘合到光纤上,并位于半导体样品上方,该半导体样品由位于分布式布拉格反射器(DBR)顶部的含QD的GaAs层组成。该开放腔可以用压电致动器快速调谐,而不会对QD线宽产生负面影响。42微米的反射镜曲率半径和10微米的腔长能够实现良好的模式匹配,从而直接进入光纤的高收集效率。通过改进的精细度,该系统可以进入强耦合状态。

英文摘要:

We report the coupling of individual InAs quantum dots (QDs) to an external-mirror microcavity. The external mirror is bonded to a fiber and positioned above a semiconductor sample consisting of a QD-containing GaAs layer on top of a distributed Bragg reflector (DBR). This open cavity can be rapidly tuned with a piezoelectric actuator without negatively affecting the QD linewidth. A mirror radius of curvature of 42 microns and a cavity length of 10 microns enable good mode-matching and thus high collection efficiency directly into the fiber. With an improved finesse this system may enter the strong coupling regime.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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