Quantum dot vertical-cavity surface-emitting lasers covering the 'green gap'

被引：106

作者：

Mei, Yang ^{[1
]}

Weng, Guo-En ^{[1
,2
]}

Zhang, Bao-Ping ^{[1
]}

Liu, Jian-Ping ^{[3
]}

Hofmann, Werner ^{[1
,4
]}

Ying, Lei-Ying ^{[1
]}

Zhang, Jiang-Yong ^{[1
]}

Li, Zeng-Cheng ^{[3
]}

Yang, Hui ^{[3
]}

Kuo, Hao-Chung ^{[1
,5
,6
]}

机构：

[1] Xiamen Univ, Optoelect Engn Res Ctr, Dept Elect Engn, Xiamen 361005, Fujian, Peoples R China

[2] East China Normal Univ, Dept Elect Engn, Shanghai 200241, Peoples R China

[3] Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Suzhou 215123, Jiangsu, Peoples R China

[4] Tech Univ Berlin, Sch Solid State Phys, D-10623 Berlin, Germany

[5] Taiwan Chiao Tung Univ, Dept Photon, Hsinchu, Taiwan

[6] Taiwan Chiao Tung Univ, Inst Electroopt Engn, Hsinchu, Taiwan

来源：

LIGHT-SCIENCE & APPLICATIONS | 2017年 / 6卷

基金：

中国国家自然科学基金;

关键词：

GaN; InGaN; quantum dot; vertical-cavity surface-emitting laser; wide-gap semiconductor; SEMICONDUCTOR-LASERS; NOBEL LECTURE; VCSELS; DIODES; JUNCTIONS; EMISSION; PROGRESS;

D O I：

10.1038/lsa.2016.199

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Semiconductor vertical-cavity surface-emitting lasers (VCSELs) with wavelengths from 491.8 to 565.7 nm, covering most of the 'green gap', are demonstrated. For these lasers, the same quantum dot (QD) active region was used, whereas the wavelength was controlled by adjusting the cavity length, which is difficult for edge-emitting lasers. Compared with reports in the literature for green VCSELs, our lasers have set a few world records for the lowest threshold, longest wavelength and continuous-wave (CW) lasing at room temperature. The nanoscale QDs contribute dominantly to the low threshold. The emitting wavelength depends on the electron-photon interaction or the coupling between the active layer and the optical field, which is modulated by the cavity length. The green VCSELs exhibit a low-thermal resistance of 915 kW(-1), which benefits the CW lasing. Such VCSELs are important for small-size, low power consumption full-color displays and projectors.

引用

页码：e16199 / e16199

页数：7

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