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dc.contributor.authorDallner, Matthias
dc.contributor.authorHau, Florian
dc.contributor.authorHoefling, Sven
dc.contributor.authorKamp, Martin
dc.date.accessioned2015-03-06T15:01:02Z
dc.date.available2015-03-06T15:01:02Z
dc.date.issued2015-01-26
dc.identifier172954478
dc.identifierab8f261b-a234-4652-8791-da96431ace56
dc.identifier000348996200008
dc.identifier84923854092
dc.identifier000348996200008
dc.identifier.citationDallner , M , Hau , F , Hoefling , S & Kamp , M 2015 , ' InAs-based interband-cascade-lasers emitting around 7 μ m with threshold current densities below 1 kA/cm 2 at room temperature ' , Applied Physics Letters , vol. 106 , no. 4 , 041108 . https://doi.org/10.1063/1.4907002en
dc.identifier.issn0003-6951
dc.identifier.urihttps://hdl.handle.net/10023/6185
dc.descriptionThe authors acknowledge the financial support from the European Commission in the frame of the FP7 project “WideLase” (Grant No. 318798) Date of Acceptance: 19/01/2015en
dc.description.abstractInterband cascade lasers (ICLs) grown on InAs substrates with threshold current densities below 1 kA/cm2 are presented. Two cascade designs with different lengths of the electron injector were investigated. Using a cascade design with 3 InAs quantum wells (QWs) in the electron injector, a device incorporating 22 stages in the active region exhibited a threshold current density of 940 A/cm2 at a record wavelength of 7 μm for ICLs operating in pulsed mode at room temperature. By investigating the influence of the number of stages on the device performance for a cascade design with 2 QWs in the electron injector, a further reduction of the threshold current density to 800 A/cm2 was achieved for a 30 stage device.
dc.format.extent4
dc.format.extent658035
dc.language.isoeng
dc.relation.ispartofApplied Physics Lettersen
dc.subjectQC Physicsen
dc.subjectNDASen
dc.subject.lccQCen
dc.titleInAs-based interband-cascade-lasers emitting around 7 μm with threshold current densities below 1 kA/cm2 at room temperatureen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.identifier.doihttps://doi.org/10.1063/1.4907002
dc.description.statusPeer revieweden


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