Radosavljevic, A, Radovanovic, J, Milanovic, V et al. (1 more author) (2015) Cubic GaN/AlGaN based quantum wells optimized for applications to tunable mid-infrared photodetectors. Optical and Quantum Electronics, 47 (4). 865 - 872. ISSN 0306-8919
Abstract
We propose a method which delivers optimal cubic GaN/AlGaN quantum well profiles such that both the Stark effect and peak intersubband absorption from the ground to the first excited electronic state, in a prescribed range of bias electric fields, are maximized. Our method relies on the Genetic Algorithm which finds globally optimal structures with a predefined number of embedded layers. We investigate simple rectangular quantum wells with embedded step layers for applications in tunable mid-infrared photodetectors. The effects of band nonparabolicity are taken into account to refine our model.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Springer Science+Business Media New York 2014. This is an author produced version of a paper published in Optical and Quantum Electronics. The final publication is available at Springer via http://dx.doi.org/10.1007/s11082-014-0016-y |
Keywords: | Quantum well; Stark effect; Intersubband absorption; Tunable photodetectors; Genetic algorithm |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 05 Jan 2016 14:14 |
Last Modified: | 16 Jan 2018 11:03 |
Published Version: | http://dx.doi.org/10.1007/s11082-014-0016-y |
Status: | Published |
Publisher: | Springer Verlag |
Identification Number: | 10.1007/s11082-014-0016-y |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:93039 |