Polarization Properties of Columnar Quantum Dots: Effects of Aspect Ratio and Compositional Contrast

被引：17

作者：

Ridha, Philipp ^{[1
]}

Li, Lianhe H. ^{[1
]}

Mexis, Meletios ^{[2
]}

Smowton, Peter M. ^{[2
]}

Andrzejewski, Janusz ^{[3
]}

Sek, Grzegorz ^{[3
]}

Misiewicz, Jan ^{[3
]}

O'Reilly, Eoin P. ^{[4
,5
]}

Patriarche, Gilles ^{[6
]}

Fiore, Andrea ^{[1
,7
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Photon & Quantum Elect, CH-1015 Lausanne, Switzerland

[2] Cardiff Univ, Cardiff CF24 3AA, S Glam, Wales

[3] Wroclaw Univ Technol, Inst Phys, PL-50370 Wroclaw, Poland

[4] Tyndall Natl Inst, Cork, Ireland

[5] Natl Univ Ireland Univ Coll Cork, Dept Phys, Cork, Ireland

[6] CNRS, LPN, F-91460 Marcoussis, France

[7] Eindhoven Univ Technol, COBRA Res Inst, NL-5600 MB Eindhoven, Netherlands

来源：

IEEE JOURNAL OF QUANTUM ELECTRONICS | 2010年 / 46卷 / 02期

基金：

英国工程与自然科学研究理事会; 瑞士国家科学基金会;

关键词：

Optical amplifiers; polarization; quantum dots; semiconductor lasers; HIGH-OUTPUT POWER; ELECTRONIC-STRUCTURE; AMPLIFIERS;

D O I：

10.1109/JQE.2009.2030339

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report a systematic theoretical and experimental investigation of the polarization properties of columnar quantum dots (CQDs) with extremely large aspect ratio and high compositional contrast. A strong variation of the polarization of the dominant interband transitions as a function of the CQD composition and aspect ratio is predicted by the theory and observed experimentally. In optimized InAs CQDs grown on GaAs, dominant emission and lasing is obtained in the transverse-magnetic polarization, which shows the potential of this approach for polarization-independent amplifiers on GaAs.

引用

页码：197 / 204

页数：8

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