High-performance operation of single-mode terahertz quantum cascade lasers with metallic gratings -: art. no. 1181101

被引：75

作者：

Mahler, L

Tredicucci, A

Köhler, R

Beltram, F

Beere, HE

Linfield, EH

Ritchie, DA

机构：

[1] CNR, INFM, NEST, I-56126 Pisa, Italy

[2] Scuola Normale Super Pisa, I-56126 Pisa, Italy

[3] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[4] ETH, Dept Phys, CH-8093 Zurich, Switzerland

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 18期

关键词：

D O I：

10.1063/1.2120901

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A periodic array of thin slits opened on a metallic surface can act as a one-dimensional photonic crystal for the propagation of surface-plasmon waves. We have used such structure for the implementation of distributed feedback resonators in quantum cascade lasers emitting near 2.5 THz. Single-mode emission, stable at all injection currents and operating temperatures, was achieved both in pulsed and continuous wave. The devices exhibited output powers of several milliwatts with low threshold current densities of similar to 100 A/cm(2). (C) 2005 American Institute of Physics.

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页数：3

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