Two-dimensional distributed-feedback in InGaAs/GaAs quantum structure lattice arrays

被引：3

作者：

Cheng, K. Y. ^{[1
]}

Cheng, Chien-Chia ^{[2
]}

Hsieh, K. C. ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Elect Engn, Hsinchu 30013, Taiwan

[2] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 14期

关键词：

HIGH-EXTRACTION-EFFICIENCY; SPONTANEOUS EMISSION; PHOTONIC CRYSTALS; DIODE; LASER;

D O I：

10.1063/1.4757988

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The spontaneous emission properties of an artificial semiconductor lattice-quantum structure lattice (QSL)-with in-plane two-dimensional distributed-feedback (DFB) are reported. Quantum box arrays fabricated in strained InGaAs/GaAs quantum wells are used as lattice units in the QSL. The photoluminescence (PL) peak wavelength of the QSL shows the characteristic weak temperature dependence of a DFB structure (0.024 nm/K) between 77 and 150 K. The surface emission of the QSL array shows a collimated radiation pattern. The peak PL intensity has maximum values centered within +/- 30 degrees of the surface normal and dropped off beyond that angle rapidly. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4757988]

引用

页数：3

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