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physics.optics2022★ 5 cited
Reduction of the lasing threshold in optically pumped AlGaN/GaN lasers with two-step etched facets
Sergi Cuesta, Lou Denaix, Florian Castioni +2
We report a two-step process to obtain smooth and vertical {10-10} m-plane facets in AlGaN/GaN separate confinement heterostructures designed to fabricate UV lasers emitting at 355…
physics.optics2021★ 8 cited
AlGaN/GaN asymmetric graded-index separate confinement heterostructures designed for electron-beam pumped UV lasers
Sergi Cuesta, Yoann Curé, Fabrice Donatini +9
We present a study of undoped AlGaN/GaN separate confinement heterostructures designed to operate as electron beam pumped ultraviolet lasers. We discuss the effect of spontaneous a…