Stimulated far-infrared emission from copper-doped germanium crystals

被引：13
|
作者：
Sirmain, G
Reichertz, LA
Dubon, OD
Haller, EE
Hansen, WL
Brundermann, E
Linhart, AM
Roser, HP
机构：
[1] EUROPEAN SPACE AGCY,F-75738 PARIS,FRANCE
[2] DLR,INST SPACE SENSOR TECHNOL,D-12489 BERLIN,GERMANY
[3] UNIV CALIF BERKELEY,DEPT MAT SCI & MINERAL ENGN,BERKELEY,CA 94720
来源：
APPLIED PHYSICS LETTERS | 1997年 / 70卷 / 13期
关键词：
D O I：
10.1063/1.118662
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have detected stimulated far-infrared emission from copper-doped germanium single crystals. By varying the magnetic field between 1 and 2.3 T, we have achieved emission in the range of 70-120 cm(-1). Laser action was observed for crystals with a copper acceptor concentration as high as 1.5 x 10(15) cm(-3), a doping level that is considerably higher than that of any single or double acceptor doped Ge laser. Stimulated emission from Ge crystals with such a high Cu concentration is possible because only a small fraction of the copper accepters is ionized during operation. (C) 1997 American Institute of Physics.
引用
收藏
页码：1659 / 1661
页数：3
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