Multi-wavelength operation and vertical emission in THz quantum-cascade lasers

被引：14
|
作者：
Scalari, Giacomo [1 ]
Sirigu, Lorenzo
Terazzi, Romain
Walther, Christoph
Amanti, Maria I.
Giovannini, Marcella
Hoyler, Nicolas
Faist, Jerome
Sadowski, Marcin L.
Beere, Harvey
Ritchie, David
Dunbar, L. Andrea
Houdre, Romuald
机构：
[1] Univ Neuchatel, Inst Phys, CH-2000 Neuchatel, Switzerland
[2] Grenoble High Magnet Field Lab, Grenoble, France
[3] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[4] Ecole Polytech Fed Lausanne, Inst Photon & Quantum Elect, Swiss Fed Inst Technol Lausanne, CH-1015 Lausanne, Switzerland
来源：
JOURNAL OF APPLIED PHYSICS | 2007年 / 101卷 / 08期
关键词：
D O I：
10.1063/1.2723183
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Multi-wavelength laser action in the terahertz (THz) region from a quantum cascade structure is demonstrated. Laser emission is obtained at 1.39 and 2.3 THz by using a structure based on a large single quantum well. A strong perpendicular magnetic field is employed to increase the gain and achieve laser action. In the second part of the work, a vertically emitting THz quantum cascade laser device that exploits an in-plane optical resonator based on a two-dimensional photonic crystal is demonstrated. Stable single mode vertical emission is reported. Simulations based on the block-iterative frequency-domain method on a plane wave basis account for the observed results. (c) 2007 American Institute of Physics.
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页数：5
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