CC BY
20B-O-10
Optical properties of functionalized microstructured fibers and their
sensing capabilities
Timur Ermatov1*, Roman E. Noskov2'3, Julia S. Skibina4, Valery V. Tuchin5'6'7, Dmitry A. Gorin1'
1 - Skolkovo Institute of Science and Technology, 3 Nobelya str., Moscow 121205, Russia 2 - Department of Electrical Engineering and 3 - Light-Matter Interaction Centre, Tel Aviv University,
Ramat Aviv, Tel Aviv 69978, Israel 4 - SPE LLC Nanostructured Glass Technology, 101 50 Let Oktjabrja, 410033 Saratov, Russia 5 - Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia 6 - Tomsk State University, 36 Lenin 's av., Tomsk 634050, Russia 7 - Institute of Precision Mechanics and Control of the Russian Academy of Sciences, 24 Rabochaya str., Saratov 410028, Russia
*The corresponding author, e-mail: timur.ermatov@skolkovotech.ru
Microstructured optical fiber-based sensors (MOF) have been widely developed finding numerous applications in various fields of photonics, biotechnology, and medicine [1]. High sensitivity to the refractive index variation, arising from the strong interaction between a guided mode and an analyte in the test, makes MOF-based sensors ideal candidates for chemical and biochemical analysis of solutions with small volume and low concentration [2,3]. Functional nanocoatings of microstructured optical fibers have extended the domain of their applications to biosensing and photochemistry. Here, we review the modern techniques used for the modification of the fiber's structure, which leads to an enhanced detection sensitivity, as well as the surface functionalization processes used for selective adsorption of target molecules. Novel functionalized MOF-based devices possessing these unique properties, emphasize the potential applications for fiber optics in the field of modern biophotonics, such as remote sensing, thermography, refractometric measurements of biological liquids, detection of cancer proteins, and concentration analysis. In this work, we discuss the approaches used for the functionalization of MOFs, with a focus on potential applications of the produced structures.
[1] Ermatov, T., Skibina, J. S., Tuchin, V. V. & Gorin, D. A. Functionalized Microstructured Optical Fibers: Materials Methods Applications.
Materials 13, 921 (2020).
[2] Ermatov, T. et al. Multispectral sensing of biological liquids with hollow-core microstructured optical fibres. Light: Science & Applications 9, 173 (2020).
[3] Perevoschikov, S. et al. Light guidance up to 6.5 ^m in borosilicate soft glass hollow-core microstructured optical waveguides. Optics Express
28, 27940-27950 (2020).
