A quantum optical study of thresholdless lasing features in high-β nitride nanobeam cavities.
A quantum optical study of thresholdless lasing features in high-β nitride nanobeam cavities.
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DOI：
10.1038/s41467-018-02999-2
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发表时间：
2018-02-08
影响因子：
16.6
通讯作者：
Reitzenstein S
中科院分区：
文献类型：
--
作者：
Jagsch ST;Triviño NV;Lohof F;Callsen G;Kalinowski S;Rousseau IM;Barzel R;Carlin JF;Jahnke F;Butté R;Gies C;Hoffmann A;Grandjean N;Reitzenstein S
探索自发发射耦合的极限不仅是纳米激光器开发的中心目标之一，而且对于未来需要小占地面积的节能相干光源的大规模光子集成也具有高度相关性。该领域的最新研究引发了关于如何证明和解释高β状态下激光的激烈争论。我们研究了硅上生长的 GaN 纳米束激光器中接近理想的自发发射耦合。这种纳米束腔允许将来自量子阱增益材料的自发发射有效地汇集到激光模式中。通过在纳米激光器微观建模的支持下进行全面的光学和量子光学表征，我们识别了室温下的高β激光，并在 156 K 处没有阈值非线性的情况下显示出激光跃迁。这种奇特的特性可以用零维和二维增益贡献之间的温度和激发功率相关的相互作用来解释。在这里，作者介绍了在硅衬底上生长的 GaN 纳米束激光器的温度依赖性研究，并证明了室温下的高β激光。纳米激光器的综合光学和量子光学表征，辅以微观建模，可以识别激光行为。
Exploring the limits of spontaneous emission coupling is not only one of the central goals in the development of nanolasers, it is also highly relevant regarding future large-scale photonic integration requiring energy-efficient coherent light sources with a small footprint. Recent studies in this field have triggered a vivid debate on how to prove and interpret lasing in the high-β regime. We investigate close-to-ideal spontaneous emission coupling in GaN nanobeam lasers grown on silicon. Such nanobeam cavities allow for efficient funneling of spontaneous emission from the quantum well gain material into the laser mode. By performing a comprehensive optical and quantum-optical characterization, supported by microscopic modeling of the nanolasers, we identify high-β lasing at room temperature and show a lasing transition in the absence of a threshold nonlinearity at 156 K. This peculiar characteristic is explained in terms of a temperature and excitation power-dependent interplay between zero-dimensional and two-dimensional gain contributions. Here the authors present temperature dependent studies of GaN nanobeam lasers grown on a silicon substrate and demonstrate high-βlasing at room temperature. Comprehensive optical and quantum-optical characterization, complemented by microscopic modeling, of the nanolasers allow identification of lasing behavior.
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影响因子：
2.5
作者：
HENRY, CH
通讯作者：
HENRY, CH
影响因子：
2.9
作者：
RICE, PR;CARMICHAEL, HJ
通讯作者：
CARMICHAEL, HJ
影响因子：
4
作者：
Ohta, Ryuichi;Ota, Yasutomo;Arakawa, Yasuhiko
通讯作者：
Arakawa, Yasuhiko
DOI：
10.1109/jstqe.2013.2258330
发表时间：
2013-07-01
影响因子：
4.9
作者：
Coldren, Larry A.
通讯作者：
Coldren, Larry A.
DOI：
10.1109/jstqe.2013.2259222
发表时间：
2013-07-01
影响因子：
4.9
作者：
Ning, C. Z.
通讯作者：
Ning, C. Z.