8 citations · 13 across the 5 of their papers we have counts for
5 papers
Impact of electron beam propagation on high-resolution quantitative chemical analysis of 1 nm-wide GaN/AlGaN quantum wells
Florian Castioni, Patrick Quéméré, Sergi Cuesta +5
Recent advancements in high-resolution spectroscopy analyses within the scanning transmission electron microscope (STEM) have paved the way for measuring the concentration of chemi…
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…
Decorrelation of internal quantum efficiency and lasing threshold in AlGaN-based separate confinement heterostructures for UV emission
Sergi Cuesta, Lou Denaix, Le Si Dang +1
In this paper, we study the internal quantum efficiency and lasing threshold of AlGaN/GaN separate confinement heterostructures designed for ultraviolet laser emission. We discuss…
Optical net gain measurement on AlGaN/GaN multi-quantum well
Quang Minh Thai, Sergi Cuesta, Lou Denaix +5
We present net gain measurements at room temperature in AlGaN/GaN 10-period multi-quantum well emitting at 367 nm, using the variable stripe length method. Measur…
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…