Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Cuesta Sergi"'
Autor:
Castioni Florian, Cuesta Sergi, Quéméré Patrick, Robin Eric, Delaye Vincent, Monroy Eva, Bayle-Guillemaud Pascale, Bernier Nicolas
Publikováno v:
BIO Web of Conferences, Vol 129, p 06013 (2024)
Externí odkaz:
https://doaj.org/article/ca987cb38da64ec98fe54d0076139824
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 nm. The process consists in a dry etching by RIE-ICP combined with a
Externí odkaz:
http://arxiv.org/abs/2203.16184
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 the effect of carrier localization and carrier diffusion on the optica
Externí odkaz:
http://arxiv.org/abs/2109.10672
Autor:
Thai, Quang Minh, Cuesta, Sergi, Denaix, Lou, Hermelin, Sylvain, Boisron, Olivier, Purcell, Stephen T., Dang, Le Si, Monroy, Eva
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
Externí odkaz:
http://arxiv.org/abs/2108.00460
Autor:
Cuesta, Sergi, Curé, Yoann, Donatini, Fabrice, Denaix, Lou, Bellet-Amalric, Edith, Bougerol, Catherine, Grenier, Vincent, Thai, Quang-Minh, Nogues, Gilles, Purcell, Stephen T., Dang, Le Si, Monroy, Eva
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 and piezoelectric polarization on carrier diffusion, comparing the resu
Externí odkaz:
http://arxiv.org/abs/2101.01954
Autor:
Molina, Brenda G., Cuesta, Sergi, Puiggalí-Jou, Anna, del Valle, Luis J., Armelin, Elaine, Alemán, Carlos
Publikováno v:
In European Polymer Journal May 2019 114:213-222
Akademický článek
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Akademický článek
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Autor:
Cuesta, Sergi, Castioni, Florian, Denaix, Lou, Bernier, Nicolas, Le Si Dang, Daniel, Monroy, Eva
Publikováno v:
Compound Semiconductor Week 2022
Compound Semiconductor Week 2022, University of Michigan, Jun 2022, Ann Arbor, United States
Compound Semiconductor Week 2022, University of Michigan, Jun 2022, Ann Arbor, United States
International audience; Electron-beam pumped AlGaN lasers are interesting candidates to overcome the technical issues in the development of deep UV laser diodes [1]. However, an improvement of the device design and deeper understanding of the physica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3515::ecdda24c0a444cf3a90c1ed7efcf5b88
https://hal.science/hal-03995644
https://hal.science/hal-03995644
Autor:
Harikumar, Anjali, Cuesta, Sergi, Dimkou, Ioanna, Thai, Quang Minh, Donatini, Fabrice, Curé, Yoann, Purcell, Stephen, Le Si Dang, Daniel, Monroy, Eva
Publikováno v:
UKNC Winter Meeting
UKNC Winter Meeting, UK Nitrides Consortium, Jan 2021, Cambridge, United Kingdom
UKNC Winter Meeting, UK Nitrides Consortium, Jan 2021, Cambridge, United Kingdom
International audience; UV disinfection is receiving renewed attention due to the global pandemic, as an immediately deployable and cost-effective option. The common sources used for this application are low-pressure arc lamps, emitting at 254 nm and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3515::1915242e74fc790c1d6656b8c208706a
https://hal.science/hal-03995673
https://hal.science/hal-03995673