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InAs-based interband-cascade-lasers emitting around 7 μm with threshold current densities below 1 kA/cm2 at room temperature
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dc.contributor.author | Dallner, Matthias | |
dc.contributor.author | Hau, Florian | |
dc.contributor.author | Hoefling, Sven | |
dc.contributor.author | Kamp, Martin | |
dc.date.accessioned | 2015-03-06T15:01:02Z | |
dc.date.available | 2015-03-06T15:01:02Z | |
dc.date.issued | 2015-01-26 | |
dc.identifier | 172954478 | |
dc.identifier | ab8f261b-a234-4652-8791-da96431ace56 | |
dc.identifier | 000348996200008 | |
dc.identifier | 84923854092 | |
dc.identifier | 000348996200008 | |
dc.identifier.citation | Dallner , 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/10.1063/1.4907002 | en |
dc.identifier.issn | 0003-6951 | |
dc.identifier.uri | https://hdl.handle.net/10023/6185 | |
dc.description | The authors acknowledge the financial support from the European Commission in the frame of the FP7 project “WideLase” (Grant No. 318798) Date of Acceptance: 19/01/2015 | en |
dc.description.abstract | Interband 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.extent | 4 | |
dc.format.extent | 658035 | |
dc.language.iso | eng | |
dc.relation.ispartof | Applied Physics Letters | en |
dc.subject | QC Physics | en |
dc.subject | NDAS | en |
dc.subject.lcc | QC | en |
dc.title | InAs-based interband-cascade-lasers emitting around 7 μm with threshold current densities below 1 kA/cm2 at room temperature | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. Condensed Matter Physics | en |
dc.identifier.doi | 10.1063/1.4907002 | |
dc.description.status | Peer reviewed | en |
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