Activation energy study of electron transport in high performance short wavelengths quantum cascade lasers
View/ Open
Pflugl_OE_18_746_2010.pdf (232.9Kb)
Access Status
Full text of the requested work is not available in DASH at this time ("dark deposit"). For more information on dark deposits, see our FAQ.Author
Pflügl, Christian
Lyakh, Arkadiy
Wang, Qi Jie
Maulini, Richard
Tsekoun, Alexei
Patel, C. Kumar N.
Wang, Xiaojun
Note: Order does not necessarily reflect citation order of authors.
Published Version
https://doi.org/10.1364/OE.18.000746Metadata
Show full item recordCitation
Pflügl, Christian, Laurent Diehl, Arkadiy Lyakh, Qi Jie Wang, Richard Maulini, Alexei Tsekoun, C. Kumar N. Patel, Xiaojun Wang, and Federico Capasso. 2010. “Activation Energy Study of Electron Transport in High Performance Short Wavelengths Quantum Cascade Lasers.” Optics Express 18 (2) (January 5): 746. doi:10.1364/oe.18.000746. .Abstract
We present a method to study current paths through quantum cascade lasers (QCLs). The temperature dependence of the current is measured at a fixed voltage. At low temperatures we find activation energies that correspond to the energy difference between the injector ground state and the upper laser level. At higher temperatures additional paths with larger activation energies are found. Application of this method to high performance QCLs based on strained InGaAs/InAlAs quantum wells and barriers with different band-offsets allows us to identify individual parasitic current paths through the devices. The results give insight into the transport properties of quantum cascade lasers thus providing a useful tool for device optimization.Citable link to this page
http://nrs.harvard.edu/urn-3:HUL.InstRepos:33372436
Collections
- FAS Scholarly Articles [17584]
Contact administrator regarding this item (to report mistakes or request changes)
Comments made during the workflow steps
Carpasso emailed 2016-05-03 AD Capasso emailed 2017-03-10 MM meta.dark