| Full text | |
| Author(s): |
Moras, Andre L.
;
Silva, Valnir
;
Souza, Mario C. M. M.
;
Cirino, Giuseppe A.
;
Von Zuben, Antonio A. G.
;
Barea, Luis A. M.
;
Frateschi, Newton C.
Total Authors: 7
|
| Document type: | Journal article |
| Source: | IEEE Photonics Journal; v. 12, n. 5, p. 10-pg., 2020-10-01. |
| Abstract | |
We demonstrate an integrated photonic platform comprising a refractive index (RI) sensor based on Photonic Molecule (PM) that effectively mitigates the influence of environmental perturbations using a differential measurement scheme while providing high quality-factor (Q) resonances. The RI sensor consists of a partially unclad microdisk resonator coupled to an external clad microring resonator fabricated on silicon-on-insulator (SOI) platform. We report a RI sensitivity of 24 nm/RIU, achieving a limit of detection (LOD) of 1.7 x 10(-3) refractive index units (RIU) with improved stability for an operation range of 0.15 RIU in a compact footprint of 40 x 40 mu m(2), representing an important solution for real-life applications in which measurement conditions are not easily controllable. (AU) | |
| FAPESP's process: | 15/12461-8 - Optical sensors based on photonic molecules fabricated on Silicon-on-insulator platform |
| Grantee: | Alvaro Ricardo Guiato Catellan |
| Support Opportunities: | Scholarships in Brazil - Scientific Initiation |
| FAPESP's process: | 14/04748-2 - Coupled microresonators applied to signal processing and photonics integration |
| Grantee: | Mário César Mendes Machado de Souza |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 18/25339-4 - Integrated photonics devices |
| Grantee: | Newton Cesario Frateschi |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 15/20525-6 - Active devices exploiting capacitively-inducedc free-carrier effects in silicon waveguides |
| Grantee: | Mário César Mendes Machado de Souza |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate |