| Full text | |
| Author(s): |
Diaz-Valencia, Brayan F.
;
Porras-Montenegro, Nelson
;
Oliveira Jr, Osvaldo N.
;
Mejia-Salazar, Jorge Ricardo
Total Authors: 4
|
| Document type: | Journal article |
| Source: | ACS APPLIED NANO MATERIALS; v. 5, n. 2, p. 5-pg., 2022-01-31. |
| Abstract | |
We demonstrate numerically a concept for highly integrated magnetoplasmonic biosensors made with nanostruc-tured magnetooptical (MO) hyperbolic metamaterials (HMMs). The concept is based on the use of enhanced amplitudes of ultranarrow peaks of the transverse magnetooptical Kerr effect (TMOKE). In contrast to conventional magnetoplasmonic trans-ducers that employ wide surface plasmon resonances, we use bulk plasmon polariton modes in HMMs. In sensing through changes in the refractive index of water, a figure of merit on the order of 8 x 10(2) was observed, to be compared with 590 for non-MO HMMs. This allows for improved resolution detection of low-molecular-weight analytes at concentrations on the order of picomolar. (AU) | |
| FAPESP's process: | 21/06946-0 - Reconfigurable intelligent surface aided communications for 6G and beyond |
| Grantee: | Rausley Adriano Amaral de Souza |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 18/22214-6 - Towards a convergence of technologies: from sensing and biosensing to information visualization and machine learning for data analysis in clinical diagnosis |
| Grantee: | Osvaldo Novais de Oliveira Junior |
| Support Opportunities: | Research Projects - Thematic Grants |