Show simple item record

dc.contributor.authorMatyas A
dc.contributor.authorChashmahcharagh R
dc.contributor.authorKovacs I
dc.contributor.authorLugli P
dc.contributor.authorVijayraghavan K
dc.contributor.authorBelkin M
dc.contributor.authorJirauschek C
dc.contributor.editor
dc.date.accessioned2018-08-01T07:40:04Z
dc.date.available2018-08-01T07:40:04Z
dc.date.issued2012
dc.identifier.issn0021-8979
dc.identifier.urihttp://dx.doi.org/10.1063/1.4719071
dc.identifier.urihttp://aip.scitation.org/doi/abs/10.1063/1.4719071
dc.identifier.urihttp://hdl.handle.net/10863/5343
dc.description.abstractUsing an ensemble Monte-Carlo analysis, it is found that relaxing the constraint of identical barrier heights can result in an improved temperature performance. Exploiting this additional design degree of freedom, modified structures with non-uniform barrier heights are developed based on the current record temperature design. For an optimized structure with reduced diagonality, we predict an increase of 31 K for the maximum operating temperature. Furthermore, we develop improved designs with the same oscillator strength as for the reference design. Using a genetic algorithm for optimization, an improvement of the maximum operating temperature by 38 K is obtained. These results aim to show the potential of varying the barrier heigths for the design of high temperature performance terahertz quantum cascade lasers. © 2012 American Institute of Physics.en_US
dc.language.isoenen_US
dc.rightsMatyas, Alpar, et al. "Improved terahertz quantum cascade laser with variable height barriers." Journal of Applied Physics 111.10 (2012): 103106. http://dx.doi.org/10.1063/1.4719071
dc.titleImproved terahertz quantum cascade laser with variable height barriersen_US
dc.typeArticleen_US
dc.date.updated2018-05-16T07:36:03Z
dc.publication.title
dc.language.isiEN-GB
dc.journal.titleJournal of Applied Physics
dc.description.fulltextopenen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record