High-performance distributed feedback quantum cascade lasers grown by metalorganic vapor phase epitaxy

被引：31
作者：
Green, RP [1 ]
Wilson, LR
Zibik, EA
Revin, DG
Cockburn, JW
Pflügl, C
Schrenk, W
Strasser, G
Krysa, AB
Roberts, JS
Tey, CM
Cullis, AG
机构：
[1] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England
[2] Vienna Univ Technol, Zentrum Mikro & Nanostrukturen, A-1040 Vienna, Austria
[3] Univ Sheffield, EPSRC Natl Ctr 3 5 Technol, Sheffield S1 3JD, S Yorkshire, England
[4] Russian Acad Sci, Inst Phys Microstruct, Nizhnii Novgorod 603950, Russia
来源：
APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 23期
基金：
英国工程与自然科学研究理事会; 奥地利科学基金会;
关键词：
D O I：
10.1063/1.1830072
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report the operation of distributed feedback quantum cascade lasers, grown by metalorganic vapor phase epitaxy. Single-mode laser emission at lambdasimilar to10.3 mum and lambdasimilar to7.8 mum is observed from two different samples, with 300 K threshold current densities of J(th)similar to3 and similar to2.4 kA cm(-2), respectively. Structural investigation by x-ray diffraction and transmission electron microscopy, and the close correlation between the predicted and observed emission wavelengths indicate exceptional control of the layer thicknesses, including ultrathin (similar to8 A) barrier layers in the active region. These results confirm metalorganic vapor phase epitaxy as a viable technology for the growth of high-performance quantum cascade lasers. (C) 2004 American Institute of Physics.
引用
收藏
页码：5529 / 5531
页数：3
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