Universität zu Köln

Ohtani, Keita, Turcinkova, Dana, Bonzon, Christopher, Benea-Chelmus, Ileana-Cristina, Beck, Mattias ORCID: 0000-0002-0260-5797, Faist, Jerome ORCID: 0000-0003-4429-7988, Justen, Matthias, Graf, Urs U., Mertens, Marc and Stutzki, Juergen (2016). High performance 4.7 THz GaAs quantum cascade lasers based on four quantum wells. New J. Phys., 18. BRISTOL: IOP PUBLISHING LTD. ISSN 1367-2630

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Abstract

GaAs/AlGaAs quantum cascade lasers based on four quantum well structures operating at 4.7 THz are reported. A large current density dynamic range is observed, leading to a maximum operation temperature of 150 K for the double metal waveguide device and a high peak output power more than 200 mW for the single surface plasmon waveguide device. A continuous wave, single mode, third order distributed feedback laser with a low electrical power dissipation and a narrow far-field beam pattern, which is required for a local oscillator in astronomy heterodyne spectrometers, is also demonstrated.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Ohtani, Keita UNSPECIFIED UNSPECIFIED UNSPECIFIED Turcinkova, Dana UNSPECIFIED UNSPECIFIED UNSPECIFIED Bonzon, Christopher UNSPECIFIED UNSPECIFIED UNSPECIFIED Benea-Chelmus, Ileana-Cristina UNSPECIFIED UNSPECIFIED UNSPECIFIED Beck, Mattias UNSPECIFIED orcid.org/0000-0002-0260-5797 UNSPECIFIED Faist, Jerome UNSPECIFIED orcid.org/0000-0003-4429-7988 UNSPECIFIED Justen, Matthias UNSPECIFIED UNSPECIFIED UNSPECIFIED Graf, Urs U. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mertens, Marc UNSPECIFIED UNSPECIFIED UNSPECIFIED Stutzki, Juergen UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-253273
DOI:	10.1088/1367-2630/18/12/123004
Journal or Publication Title:	New J. Phys.
Volume:	18
Date:	2016
Publisher:	IOP PUBLISHING LTD
Place of Publication:	BRISTOL
ISSN:	1367-2630
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language HETERODYNE RECEIVER; WAVE-GUIDE Multiple languages Physics, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/25327