| Full text | |
| Author(s): |
Palomino, Gustavo A. M.
;
Pinho, Pedro V. N.
;
Garcia, Ailton J., Jr.
;
Deneke, Christoph F.
;
Frateschi, Newton C.
;
IEEE
Total Authors: 6
|
| Document type: | Journal article |
| Source: | 2019 SBFOTON INTERNATIONAL OPTICS AND PHOTONICS CONFERENCE (SBFOTON IOPC); v. N/A, p. 5-pg., 2019-01-01. |
| Abstract | |
Two different interfaces for optical confinement in GaAs resonators (air/GaAs/air, air/GaAs/AlOx) are compared in cylindrical microstructures with 10 mu m of diameter. The AlOx is obtained by the lateral oxidation of Al0.9Ga0.1As layers. The spectrum of the resonators is obtained using a tapered fiber system in the wavelength range between 1470 nm and 1610 nm. The modal separation agrees with simulations. The quality factor for the cylindrical microstructures having air/GaAs/air interface is almost twice the value for the case of AlOx interface. Since it is expected that surface recombination velocity is reduced by a factor of ten for this last case, these structures are expected to be suitable for the development of active resonators. (AU) | |
| FAPESP's process: | 15/24517-8 - Photonics for next generation internet |
| Grantee: | Hugo Enrique Hernández Figueroa |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 17/09481-2 - Resonant microcavity of microdisks using the confinement provided by partially oxidized GaAs and AlxGa1-xAs |
| Grantee: | Pedro Vinicius Pinho Nascimento |
| Support Opportunities: | Scholarships in Brazil - Scientific Initiation |