Fabrication of cylindrical resonant microcavities using the confinement provided by partially oxidized algaas/gaas layers
Two different interfaces for optical confinement in GaAs resonators (air/GaAs/air, air/GaAs/AlOx) are compared in cylindrical microstructures with 10 um diameter. The AlOx is obtained by the lat- eral oxidation of Al0.9Ga0.1As layers. The spectrum of the resonators is obtained using a tapered fiber...
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| Format: | Online |
| Language: | Portuguese |
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Universidade Estadual de Campinas
2019
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| Online Access: | https://econtents.sbu.unicamp.br/eventos/index.php/pibic/article/view/1702 |
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| author | Nascimento, Pedro Frateschi, Newton Palomino, Gustavo Junior, Ailton Garcia Deneke, Christoph |
| author_facet | Nascimento, Pedro Frateschi, Newton Palomino, Gustavo Junior, Ailton Garcia Deneke, Christoph |
| author_sort | Nascimento, Pedro |
| collection | Portal de Eventos Científicos da UNICAMP |
| container_reference | Revista dos Trabalhos de Iniciação Científica da UNICAMP; n. 27 (2019): Congresso de Iniciação Científica UNICAMP; 1-1 |
| description | Two different interfaces for optical confinement in GaAs resonators (air/GaAs/air, air/GaAs/AlOx) are compared in cylindrical microstructures with 10 um diameter. The AlOx is obtained by the lat- eral oxidation of Al0.9Ga0.1As layers. The spectrum of the resonators is obtained using a tapered fiber system in the wavelength range of 1470nm to 1610nm. The modal separation agrees with our simulation. The quality factor for cylindrical microstructures with air/GaAs/air interface is almost twice the case with AlOx interface. Since it is expected that surface recombination velocity is reduced by a factor of ten for this last case, these structures are shown to be suitable for active resonators. |
| first_indexed | 2025-10-08T13:55:05Z |
| format | Online |
| id | ojs-article-1702 |
| institution | Universidade Estadual de Campinas |
| issn | 2596-1969 |
| language | por |
| last_indexed | 2025-10-08T13:55:05Z |
| publishDate | 2019 |
| publisher | Universidade Estadual de Campinas |
| record_format | ojs |
| spelling | ojs-article-17022025-09-26T14:39:16Z Fabrication of cylindrical resonant microcavities using the confinement provided by partially oxidized algaas/gaas layers Nascimento, Pedro Frateschi, Newton Palomino, Gustavo Junior, Ailton Garcia Deneke, Christoph Oxidation of algaAs Microdisk Whispering gallery modes Two different interfaces for optical confinement in GaAs resonators (air/GaAs/air, air/GaAs/AlOx) are compared in cylindrical microstructures with 10 um diameter. The AlOx is obtained by the lat- eral oxidation of Al0.9Ga0.1As layers. The spectrum of the resonators is obtained using a tapered fiber system in the wavelength range of 1470nm to 1610nm. The modal separation agrees with our simulation. The quality factor for cylindrical microstructures with air/GaAs/air interface is almost twice the case with AlOx interface. Since it is expected that surface recombination velocity is reduced by a factor of ten for this last case, these structures are shown to be suitable for active resonators. Universidade Estadual de Campinas 2019-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artigo de convidado application/pdf https://econtents.sbu.unicamp.br/eventos/index.php/pibic/article/view/1702 10.20396/revpibic2720191702 Revista dos Trabalhos de Iniciação Científica da UNICAMP; n. 27 (2019): Congresso de Iniciação Científica UNICAMP; 1-1 2596-1969 por https://econtents.sbu.unicamp.br/eventos/index.php/pibic/article/view/1702/1777 Copyright (c) 2019 Revista dos Trabalhos de Iniciação Científica da UNICAMP http://creativecommons.org/licenses/by/4.0 |
| spellingShingle | Nascimento, Pedro Frateschi, Newton Palomino, Gustavo Junior, Ailton Garcia Deneke, Christoph Oxidation of algaAs Microdisk Whispering gallery modes Fabrication of cylindrical resonant microcavities using the confinement provided by partially oxidized algaas/gaas layers |
| title | Fabrication of cylindrical resonant microcavities using the confinement provided by partially oxidized algaas/gaas layers |
| title_full | Fabrication of cylindrical resonant microcavities using the confinement provided by partially oxidized algaas/gaas layers |
| title_fullStr | Fabrication of cylindrical resonant microcavities using the confinement provided by partially oxidized algaas/gaas layers |
| title_full_unstemmed | Fabrication of cylindrical resonant microcavities using the confinement provided by partially oxidized algaas/gaas layers |
| title_short | Fabrication of cylindrical resonant microcavities using the confinement provided by partially oxidized algaas/gaas layers |
| title_sort | fabrication of cylindrical resonant microcavities using the confinement provided by partially oxidized algaas/gaas layers |
| topic | Oxidation of algaAs Microdisk Whispering gallery modes |
| url | https://econtents.sbu.unicamp.br/eventos/index.php/pibic/article/view/1702 |
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