| Full text | |
| Author(s): |
de Oliveira, Emerson C.
;
Gerosa, Rodrigo M.
;
Phelan, Ciaran
;
de Matos, Christiano J. S.
;
IEEE
Total Authors: 5
|
| Document type: | Journal article |
| Source: | 2019 SBFOTON INTERNATIONAL OPTICS AND PHOTONICS CONFERENCE (SBFOTON IOPC); v. N/A, p. 4-pg., 2019-01-01. |
| Abstract | |
This work describes the fabrication and characterization of silicon nitride waveguides for operation in the 2 mu m to 3 mu m range. Fabrication was carried out via PECVD and lithography techniques. Transmission losses were measured, with a tunable laser, to be similar to 20 dB between 2.0 mu m and 2.3 mu m, increasing to mu 30 dB between 2.3 mu m and 2.6 mu m. Beyond 2.8 mu m no transmission was detected, possibly due to the presence of hydrogen in the silicon nitride material (leading to absorption). Losses in the 2.0 mu m to 2.6 mu m range are believed to be a consequence of scattering, as the waveguides presented an RMS roughness of similar to 5 nm. Future work will focus on reducing these sources of absorption and scattering so that operation can be extended to the 4 mu m range. (AU) | |
| FAPESP's process: | 15/12734-4 - Design, production and characterization of optical waveguides for plasmid excitation in graphene |
| Grantee: | Ciaran Phelan |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 18/07276-5 - Mid- and far-infrared plasmonic biosensing with graphene |
| Grantee: | Christiano José Santiago de Matos |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 15/11779-4 - Plasmonic and nonlinear effects in graphene coupled to optical waveguides |
| Grantee: | Christiano José Santiago de Matos |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 18/19736-0 - Automation of the MackGraphe photonics laboratory: creation of a library of control routines |
| Grantee: | Rodrigo Mendes Gerosa |
| Support Opportunities: | Scholarships in Brazil - Technical Training Program - Technical Training |