External cavity quantum-cascade laser tunable from 8.2 to 10.4 μm using a gain element with a heterogeneous cascade

被引：140

作者：

Maulini, Richard

Mohan, Arun

Giovannini, Marcella

Faist, Jerome

Gini, Emilio

机构：

[1] Univ Neuchatel, Inst Phys, CH-2000 Neuchatel, Switzerland

[2] Swiss Fed Inst Technol, FIRST Ctr Micro & Nanosci, CH-8093 Zurich, Switzerland

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 20期

关键词：

Quantum well lasers;

D O I：

10.1063/1.2205183

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A heterogeneous quantum-cascade structure based on two bound-to-continuum designs emitting at 9.6 and 8.4 mu m is presented. Its spontaneous emission spectrum at room temperature has a full width at half maximum of 350 cm(-1) and shows a variation of intensity of less than 20% over more than 200 cm(-1). External cavity lasers using a grating in Littrow configuration and antireflection coated chips with this active region could be tuned over 265 cm(-1) from 8.2 to 10.4 mu m, that is, over 24% of the center wavelength. (c) 2006 American Institute of Physics.

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页数：3

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