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High Duty Cycle Germanium Lasers and Continuous Terahertz Emission from Germanium

High Duty Cycle Germanium Lasers and Continuous Terahertz Emission from Germanium

Authors :
CALIFORNIA UNIV BERKELEY LAWRENCE BERKELEY LAB
Bruendermann, Erik
Chamberlin, Danielle R.
Haller, Eugene E.
CALIFORNIA UNIV BERKELEY LAWRENCE BERKELEY LAB
Bruendermann, Erik
Chamberlin, Danielle R.
Haller, Eugene E.
Source :
DTIC
Publication Year :
2000

Abstract

We have measured laser emission from beryllium-doped germanium crystals with small inter-contact distances. An improved heat sink allowed a two-fold increase of the laser duty cycle to 5%. Non-thermal terahertz emission was found for conventional, continuously excited beryllium-doped germanium crystals with a volume of 0.5 cu mm. Experimental and theoretical investigations of germanium lasers headed for continuous wave operation will be discussed. Major emphasis is placed on the electric field uniformity. We present experimental results of lasers utilizing a planar contact geometry. A planar laser structure with a thin active layer seems to be a very good candidate for a high power and continuous wave terahertz laser.<br />Prepared in cooperation with GMM, VDE/VDE-Gesellschaft Mikroelektronik, Mikro- und Feinwerktechnik; ITS, Informationstechnische Gesellschaft im VDE; Ruhr-Universitaet Bochum, Physical Chemistry, Bochum, Germany. This article is from the THz Conference 2000 pp255-258. This article is from ADA398789 International Conference on Terahertz Electronics (8th), Held in Darmstadt, Germany on 28-29 September 2000

Details

Database :
OAIster
Journal :
DTIC
Notes :
text/html, English
Publication Type :
Electronic Resource
Accession number :
edsoai.ocn831741678
Document Type :
Electronic Resource