On April 17, 2025, the FeLow-D project at the Institute of Solid State Physics, University of Latvia (ISSP UL), hosted a seminar featuring Professor Ignacio R. Matías, Fellow IEEE and a leading figure in optical sensor technologies from the Public University of Navarra, Spain.
The seminar, titled “Advances in Sensors Using Lossy Mode Resonances”, introduced attendees to the key principles, material configurations, and applications of LMR-based sensors. Professor Matías detailed how LMR technology offers a robust alternative to more traditional surface plasmon resonance (SPR) techniques by enabling both transverse electric (TE) and transverse magnetic (TM) light polarization, and allowing for fine control of resonance through thin-film engineering.
These sensors demonstrate impressive versatility across a wide array of domains, including:
- Refractive index sensing
- Detection of pH, humidity, and voltage
- Biosensors and immunosensors for biomedical applications
The lecture also included highlights from over a decade of experimental work, covering hybrid sensors, sensor multiplexing on a single substrate, and the development of new geometries using both optical fibers and planar waveguides.
About the Speaker
Professor Ignacio R. Matías is Professor in the Department of Electrical, Electronics and Communications Engineering at the Public University of Navarra, and head of the Sensors Research Group at the Institute of Smart Cities. His credentials include:
- Over 285 peer-reviewed research articles
- 16 patents and 6 copyrights
- Leadership of 120+ research projects
- Founding partner of six spin-off companies
- Former Director of the School of Industrial, Computer Sciences and Telecommunications Engineering (UPNA)
- Current President of the Claims Committee at the Spanish Agency for Quality Assessment and Accreditation (ANECA)
His presentation sparked active discussion among attendees and further strengthened collaborative links between Latvian and international researchers in photonics and sensing systems.
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