Dr. Mateusz Smietana: Optical fiber sensors and biosensors, CETAL, Tuesday, 29 June 2021, 2:00 pm

General Seminar

Tuesday, 29 June 2021, 2:00 pm

CETAL, Seminar Room

Title: "Optical fiber sensors and biosensors".

Lecturer: Dr. Mateusz Smietana, Associate Professor at the Faculty of Electronics and Information Technology, Varsovia, Polonia.

Abstract: Optical fibers are small, flexible, low-cost and immune to external electromagnetic fields, which are often present during medical examinations e.g., in hospitals. After certain modification the fibers can be used as sensors, where light guided in the fiber interacts with external medium and thus can be used for monitoring optical properties in the vicinity of the sensor surface. The interaction with the external medium can be greatly modified by deposition of thin overlays and nanostructures. In this seminar a special attention will be paid to nanocoated sensors and label-free biosensors based on long-period fiber gratings, various interferometers, and lossy-mode resonance devices. A subjective review of the most promising optical-fiber-based biosensing devices will be shown when they are targeted towards biomolecules of different size, i.e., DNA, proteins, viruses, and bacteria.