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Talk · Международный семинар по волоконным лазерам · September 22, 2024

Fiber optic sensors based on fiber-optic ball resonators for applications in biosensing

Daniele Tosi, Aliya Bekmurzayeva, Zhuldyz Myrkhiyeva, Marzhan Nurlankyzy, Zhannat Ashikbayeva

Marzhan Nurlankyzy
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Abstract

Fiber optic biosensors are minimally invasive devices that perform a specific detection of biomolecules, through the analysis of reflection or transmission spectra.The operation with single-mode telecom fibers at infrared wavelengths makes it possible to achieve high performances, thanks to the excellent mode stability, while designing sensors having a low cost per unit.In this work, we present our latest results using fiber-optic biosensors based on ball resonators (BRs), fabricated using a CO2 laser splicer and functionalized using a silanization process.The BR fabrication is a rapid and repeatable process, leading to sensors that have quasi-random spectral features that can be interrogated through optical backscatter reflectometry.We present the BR sensors for a various range of targets that include protein-based cancer biomarkers, viruses, cells, and the exploitation or analytes such as saliva or tears.

Advanced Fiber Optic SensorsSpectroscopy Techniques in Biomedical and Chemical ResearchPhotonic Crystal and Fiber Opticsoptical fiber biosensoroptical backscatter reflectometrysilanization

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