TITLE

Temperature performance analysis of terahertz quantum cascade lasers: Vertical versus diagonal designs

AUTHOR(S)
Mátyás, Alpár; Belkin, Mikhail A.; Lugli, Paolo; Jirauschek, Christian
PUB. DATE
May 2010
SOURCE
Applied Physics Letters;5/17/2010, Vol. 96 Issue 20, p201110
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Resonant phonon depopulation terahertz quantum cascade lasers based on vertical and diagonal lasing transitions are systematically compared using a well established ensemble Monte Carlo approach. The analysis shows that for operating temperatures below 200 K, diagonal designs may offer superior temperature performance at lasing frequencies of about 3.5 THz and above; however, vertical structures are more advantageous for good temperature performance at lower frequencies.
ACCESSION #
50827826

 

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