Optical net gain measurement on Al0.07Ga0.93N/GaN multi-quantum well
| العنوان: | Optical net gain measurement on Al0.07Ga0.93N/GaN multi-quantum well |
|---|---|
| المؤلفون: | Quang Minh Thai, Sergi Cuesta, Lou Denaix, Sylvain Hermelin, Olivier Boisron, Edith Bellet-Amalric, Catherine Bougerol, Florian Castioni, Stephen T. Purcell, Le Si Dang, Eva Monroy |
| المساهمون: | Physique des nanostructures et émission de champ (PNEC), Institut Lumière Matière [Villeurbanne] (ILM), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Nanophysique et Semiconducteurs (NPSC), PHotonique, ELectronique et Ingénierie QuantiqueS (PHELIQS), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Nanophysique et Semiconducteurs (NEEL - NPSC), Région Auvergne-Rhône-Alpes (PEAPLE), ANR-18-CE24-0014,UVLASE,Laser UV à pompage électronique(2018) |
| المصدر: | arXiv Optics Express Optics Express, 2022, 30 (14), pp.25219-25233. ⟨10.1364/OE.454381⟩ |
| بيانات النشر: | HAL CCSD, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | [PHYS]Physics [physics], Condensed Matter - Materials Science, [SPI]Engineering Sciences [physics], Physics::Optics, Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], Atomic and Molecular Physics, and Optics |
| الوصف: | We present net gain measurements at room temperature in Al$_{0.07}$Ga$_{0.93}$N/GaN 10-period multi-quantum well emitting at 367 nm, using the variable stripe length method. Measurements were conducted at two different positions on the sample, where the net gain threshold was attained at 218 kW/cm$^{2}$ and 403 kW/cm$^{2}$. At the position with higher threshold, we observed an anomalous amplification of the photoluminescence intensity that occurs for long stripe lengths (superior to 400 $\mu$m) and high pumping power (superior to 550 kW/cm$^{2}$), leading to an overestimation of the gain value. We attribute such a phenomenon to the feedback provided by the reflection from cracks, which were created during the epitaxial growth due to the strong lattice mismatch between different layers. The highest gain value without anomalous amplification was 131 cm$^{-1}$, obtained at the maximum pumping power density of the experimental setup (743 kW/cm$^{2}$). Using the intrinsic efficiency limit of the cathodoluminescence process, we estimate a lower limit for electron beam pumped laser threshold at room temperature of 390 kW/cm$^{2}$ for this multi-quantum well structure. Comment: 9 pages, 7 figures, 1 table |
| اللغة: | English |
| تدمد: | 1094-4087 |
| DOI: | 10.1364/OE.454381⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5265dc9a3b1bf2a4cd5879fb2774291d https://hal.archives-ouvertes.fr/hal-03313470 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....5265dc9a3b1bf2a4cd5879fb2774291d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10944087 |
|---|---|
| DOI: | 10.1364/OE.454381⟩ |