We present an optical analysis of the light coupling between a SU-8 polymer waveguide and a nano-cylinder surface array, for biosensing applications with scattering-induced fluorescence. The coupling efficiency was studied in the 490-590 nm range using Finite Difference Time Domain (FDTD) method and scattering theory. We modeled thin films of indium tin oxide (ITO) buffer layers with different thicknesses to evaluate the behavior of the device in a sandwich configuration. We found that ITO enhances the waveguide-array coupling efficiency up to 5 times.

Coupling efficiency enhancement between SU-8 waveguides and plasmonic nanostructures through indium tin oxide thin films / Mannetta, Alessia; Buzzin, Alessio; Hanine, Nicolas; Alam, Badrul; Ferrara, Vincenzo; Asquini, Rita. - (2023), pp. 5-6. (Intervento presentato al convegno 2023 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), tenutosi a Torino) [10.1109/NUSOD59562.2023.10273458].

Coupling efficiency enhancement between SU-8 waveguides and plasmonic nanostructures through indium tin oxide thin films

Mannetta, Alessia;Buzzin, Alessio;Hanine, Nicolas;Alam, Badrul;Ferrara, Vincenzo;Asquini, Rita
2023

Abstract

We present an optical analysis of the light coupling between a SU-8 polymer waveguide and a nano-cylinder surface array, for biosensing applications with scattering-induced fluorescence. The coupling efficiency was studied in the 490-590 nm range using Finite Difference Time Domain (FDTD) method and scattering theory. We modeled thin films of indium tin oxide (ITO) buffer layers with different thicknesses to evaluate the behavior of the device in a sandwich configuration. We found that ITO enhances the waveguide-array coupling efficiency up to 5 times.
2023
2023 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD),
FDTD; plasmonic nano-array; SU-8 waveguide; indium tin oxide; BK7 glass; gold nano-cylinders
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Coupling efficiency enhancement between SU-8 waveguides and plasmonic nanostructures through indium tin oxide thin films / Mannetta, Alessia; Buzzin, Alessio; Hanine, Nicolas; Alam, Badrul; Ferrara, Vincenzo; Asquini, Rita. - (2023), pp. 5-6. (Intervento presentato al convegno 2023 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), tenutosi a Torino) [10.1109/NUSOD59562.2023.10273458].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1690465
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