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arXiv 1003.1176physics.optics
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纳米束光子晶体腔量子点laser

Nanobeam photonic crystal cavity quantum dot laser

Yiyang Gong, Bryan Ellis, Gary Shambat, Tomas Sarmiento, James S. Harris, Jelena Vuckovic

摘要:

研究了室温下镶嵌InAs量子点的一维GaAs纳米梁腔的激光行为。在整个量子点PL光谱中观察到激光,并计算了阈值的波长依赖性。我们研究了780 nm和980 nm泵浦下的腔激光器,发现两个泵浦波长的阈值分别低至0.3 uW和19 uW。最后,纳米束腔激光器波长通过在腔附近采用光纤锥来调谐高达7nm。光纤锥用于有效地泵浦腔并收集腔发射。

英文摘要:

The lasing behavior of one dimensional GaAs nanobeam cavities with embedded InAs quantum dots is studied at room temperature. Lasing is observed throughout the quantum dot PL spectrum, and the wavelength dependence of the threshold is calculated. We study the cavity lasers under both 780 nm and 980 nm pump, finding thresholds as low as 0.3 uW and 19 uW for the two pump wavelengths, respectively. Finally, the nanobeam cavity laser wavelengths are tuned by up to 7 nm by employing a fiber taper in near proximity to the cavities. The fiber taper is used both to efficiently pump the cavity and collect the cavity emission.

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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