ZnO/ZnMgO: cubic quantum well laser in UV spectrum

A theoretical study of the optical gain and the line-width enhancement factor ( α -parameter) in cubic ZnO/ZnMgO quantum well laser is presented. The laser is designed to operate at ultraviolet (UV) spectrum at room temperature. This study is based on the density matrix theory including the Lorentzi...

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Bibliographic Details
Published inInternational journal of advanced manufacturing technology Vol. 89; no. 1-4; pp. 629 - 633
Main Authors Riane, H., Mokaddem, A., Temimi, L., Doumi, B., Bahlouli, S., Hamdache, F.
Format Journal Article
LanguageEnglish
Published London Springer London 01.03.2017
Springer Nature B.V
Subjects
CAE) and Design
Carrier density
Computer-Aided Engineering (CAD
Engineering
Industrial and Production Engineering
Lasers
Matrix theory
Mechanical Engineering
Media Management
Original Article
Parameters
Quantum well lasers
Room temperature
Ultraviolet radiation
Ultraviolet spectra
Zinc oxide
Quantum well
ZnMgO
Optical gain
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Summary:A theoretical study of the optical gain and the line-width enhancement factor ( α -parameter) in cubic ZnO/ZnMgO quantum well laser is presented. The laser is designed to operate at ultraviolet (UV) spectrum at room temperature. This study is based on the density matrix theory including the Lorentzian broadening, with intraband relaxation taken into account. The investigation of the evolution of the optical gain and the line-width enhancement factor parameter as a function of carrier’s densities and for different values of quantum well width is proposed. It is found that the cubic ZnO/ZnMgO quantum well laser is an efficient structure emitting in UV region spectrum.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-016-9105-3