@inproceedings{2ed92d9bda4c4c92a34b40c3833ae8f2,
title = "Evaluation of the improvement of an LMR-based planar biosensor by depositing a low refractive index intermediate thin-film",
abstract = "Planar waveguide configuration is a good alternative to lossy mode resonance (LMR) based fiber sensors, but it requires many efforts in order to enhance resonance parameters. An interesting approach to this purpose consists of depositing a low refractive index intermediate layer. This reduces the spectral width of the resonance and improves the figure of merit (FOM). In this work, the results when detecting anti-IgG by using three biosensors fabricated with and without a SiO2 intermediate layer have been compared. LMRs using a TiO2 thin-film are generated so that their TM polarization component is located within the visible range and their TE polarization component is located in the NIR. The biosensor with the highest FOM (0.003 ppm-1) has been the one fabricated using an intermediate layer and locating the LMR with TM component in the visible range. Moreover, this structure shows a limit of detection (LoD) of 0.02 μ g /ml, the lowest value achieved, and what is more important, its transition to a real application.",
keywords = "figure of merit, lossy mode resonance, optical biosensor, planar waveguide, spectral width",
author = "M. Benitez and P. Zubiate and Socorro, \{A. B.\} and Villar, \{I. Del\} and Matias, \{I. R.\}",
note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 1st Annual IEEE BioSensors Conference, BioSensors 2023 ; Conference date: 30-07-2023 Through 01-08-2023",
year = "2023",
doi = "10.1109/BioSensors58001.2023.10280909",
language = "English",
series = "2023 IEEE BioSensors Conference, BioSensors 2023 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2023 IEEE BioSensors Conference, BioSensors 2023 - Proceedings",
address = "United States",
}