Quantum-cascade lasers without injector regions operating above room temperature

被引：5
|
作者：
Friedrich, A
Boehm, G
Amann, MC
Scarpa, G
机构：
[1] Tech Univ Munich, Walter Schottky Inst, D-85748 Garching, Germany
[2] Tech Univ Munich, Lehrstuhl Nanoelektron, D-80333 Munich, Germany
来源：
APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 16期
关键词：
D O I：
10.1063/1.1906302
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We present above-room-temperature operation of an injectorless quantum-cascade (QC) laser. The active region is designed as a four-level staircase and has been realized in the strain-compensated material system Ga0.4In0.6As/Al0.56In0.44As based on InP. In pulsed operation the lasers work up to a heat-sink temperature of 340 K, the highest temperature achieved so far with injectorless QC lasers. A large wavelength shift is observed for higher bias fields and (therefore) at high temperatures (10 μ m at 77 K and 8.4 μ m at 300 K). © 2005 American Institute of Physics.
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页码：1 / 2
页数：2
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