Solid-state terahertz sources using quantum-well intersubband transitions

被引：11

作者：

Harrison, P ^{[1
]}

Kelsall, RW ^{[1
]}

Donovan, K ^{[1
]}

Kinsler, P ^{[1
]}

机构：

[1] Univ Leeds, Sch Elect & Elect Engn, Inst Microwaves & Photon, Leeds LS2 9JT, W Yorkshire, England

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2000年 / 48卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

far-infrared; intersubband; quantum cascade lasers;

D O I：

10.1109/22.841955

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, it is shown that the confined states within the conduction band of quantum-well systems have potential as sources of terahertz radiation. It is demonstrated that it is the dynamical properties of the electrons within these levels that must be manipulated in order to favor radiative emission rather than nonradiative loss. Designs are advanced for tunable emitters, optically excited lasers, and the active regions of electrically injected terahertz lasers. In the latter two device types, it is shown that the electron dynamics can be manipulated to favor population inversion at room temperature.

引用

页码：645 / 652

页数：8

共 15 条

[11] Far-infrared (λ = 88 μm) electroluminescence in a quantum cascade structure [J].