Abstract
Quantum Cascade Lasers are a novel semiconductor light source with the unique property of wavelength tunability over the mid-infrared and terahertz range of frequencies. Advances since their first demonstration in 1994 have led to highly efficient designs capable of continuous room temperature operation. In lieu of increased advances in laser core efficiency, power scaling with broad area quantum cascade lasers has demonstrated enhanced continuous power. This initial work is used as a starting point for continuing advances in average brightness of quantum cascade lasers. A figure of merit calculation reliably predicts to within parts in thousands the qualitative beam profile of continuously driven and high duty cycle devices. Further, a model is developed to project performance not only in continuously driven conditions, but also in variable duty cycles. This is combined with the figure of merit calculation to guide designs for optimized average brightness.
Notes
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Graduation Date
2020
Semester
Summer
Advisor
Lyakh, Arkadiy
Degree
Doctor of Philosophy (Ph.D.)
College
College of Optics and Photonics
Department
Optics and Photonics
Degree Program
Optics and Photonics
Format
application/pdf
Identifier
CFE0008591; DP0024267
URL
https://purls.library.ucf.edu/go/DP0024267
Language
English
Release Date
February 2026
Length of Campus-only Access
5 years
Access Status
Doctoral Dissertation (Campus-only Access)
STARS Citation
Suttinger, Matthew, "High Average Brightness Broad Area Quantum Cascade Lasers" (2020). Electronic Theses and Dissertations, 2020-2023. 620.
https://stars.library.ucf.edu/etd2020/620
Restricted to the UCF community until February 2026; it will then be open access.