Optoelectronics and Measurement Techniques

A comprehensive photoluminescence (PL) system Fluorolog-QM by Horiba for material characterization.

Time-correlated single-photon counting (TCSPC) system from Becker & Hickl including e.g. SPC-130INXX TCSPC Module, and PM-100-50C peltier cooled Hybrid GaAs Photodetector. The system is configured for blood perfusion measurements by diffuse optical correlation technique.

Arbin LBT21084UC battery testing system with 16 channels, voltage ± 5 V, and support for any battery chemistry.

Asgari, Somayyeh; Fabritius, Tapio (2025) Multi-purpose graphene-based terahertz metamaterial and its equivalent circuit model, IEEE access, 13, 56808-56819, DOI: 10.1109/access.2025.3554530

Sliz, Rafal; Roy, Ivy Saha; Molaiyan, Palanivel; Välikangas, Juho; Jakkila, Tero; Christophliemk, Mika; Hu, Tao; Nguyen, Hai Harry; Hannila, Esa; Illikainen, Sofia; Lassi, Ulla; Fabritius, Tapio (2024) Various Solvent‐Binder Compositions and their Crystalline Phase for Optimal Screen‐Printing of NMC Cathodes, Batteries & supercaps, 7, 3, e202300527, DOI: 10.1002/batt.202300527

Lopushenko, Ivan; Sieryi, Oleksii; Bykov, Alexander; Meglinski, Igor (2024) Exploring the evolution of circular polarized light backscattered from turbid tissue-like disperse medium utilizing generalized Monte Carlo modeling approach with a combined use of Jones and Stokes–Mueller formalisms, Journal of biomedical optics, 29, 5, 052913, DOI: 10.1117/1.jbo.29.5.052913

This thesis investigates how theoretical and numerical approaches can be used to design and analyse tunable terahertz graphene-based chiral and anisotropic metamaterials for applications in optoelectronics. Nine variations of metamaterials were designed and analysed to demonstrate the versatility of the technique: single-, dual-, and multi-function metamaterials working as a filter, multiband absorbers, broadband and multiband mirror, switch, inverter, a refractive index sensor, and a biosensor. Metamaterials were designed and optimized numerically in Computer Simulation Technology (CST) Software, while Equivalent circuit models (ECMs), parameter retrieval method, and Kramers–Kronig relations-based MATLAB codes were utilized in theoretical analysis. The obtained results demonstrated the significant potential of metamaterials in various research fields, their potential impact on the optoelectronics industry and the possibility of a proper design to make graphene-based THz metastructure fabrication more feasible.

Dissertation

This thesis investigated the feasibility of hybrid and structural electronics as well as the applicability of simulation-assisted structural analysis as a technology development tool. Additionally, it analyzed the process throughput yield, product quality, and reliability. The topic is approached by studying the hybrid structural electronic samples and the influence of fabrication, and operational conditions on their performance. The study proved that the concept of hybrid and structural electronics enables new properties for electronics (e.g., better thermal management or mechanical durability). A simulation-assisted, non-destructive structural analysis was also found to be a suitable characterization method for this kind of technology. According to the results, the process throughput yield, product quality and reliability can be enhanced with the proper design choices and manufacturing parameters.

Dissertation

The aim of this project is to gain the next generation battery technology development and expertise to support the industrialization by better material and process capability enabling the production of more environmentally and socioeconomically sustainable Li-ion battery cell production.

Homepage of the project

The project aims to contribute to the utilization and use of digital services in oral healthcare, and to promote a new business related to health care, health technology and health security.

https://www.oulu.fi/en/projects/digileap-oral-health-towards-virtual-reception

521109A Electrical Measurement Principles, 5 ECTS

521241A Optical systems, 5 ECTS

521092A Electronic Measurement Techniques, 5 ECTS

521242A Introduction to Biomedical Engineering, 5 ECTS

521176A Laboratory Works of Electronic Measurement Techniques, 5 ECTS

521089S Printed Electronics, 5 ECTS

521093S Biomedical Instrumentation, 5 ECTS

521096S Measurement Systems, 5 ECTS

521097S Wireless Measurements, 5 ECTS

521098S Testing Techniques of Electronics and Printed Electronics, 5 ECTS

521115S EMC Design, 5 ECTS

521124S Electronic Sensors, 5 ECTS

521240S Biophotonics and Biomedical Optics, 5 ECTS

521108S Optical Measurement Technology Exercise, 5-10 ECTS

521168S Wireless Measurements Project, 5-10 ECTS

IE00AN82 Printed Electronics Prototyping and Fabrication, 5 ECTS

TE00AK59 Battery Fabrication and Testing, 5 ECTS

Collaboration with companies / Research collaboration

PrintoCent - Boosting the industrialization and commercialization of printed intelligence

Photonics Finland - Developing new business and research opportunities, and helping realize the full potential of the photonics industry in Finland

Oulu BioImaging OBI - Gathering several outstanding biologically, medically and technically oriented imaging laboratories with the aim to cover recent advances in microscopy, spectroscopy, optical tomography, photonics, pattern recognition and image analysis.

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Spin-offs

Sensmet Ltd

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Alumni

Some of our alumni/alumnae working in companies, industry or other research and education institutes:

Optoelectronics and Measurement Techniques Unit
Faculty of Information Technology and Electrical Engineering
P.O. Box 4500
FI-90014 University of Oulu

University of Oulu
Faculty of Information Technology and Electrical Engineering
Optoelectronics and Measurement Techniques Unit
Erkki Koiso-Kanttilankatu 3
Door E
90570 Oulu
Finland

Map of Linnanmaa campus (Door E at position F9)

Welcome to the campuses of the University of Oulu

Professors
Fabritius Tapio (Head of the Research Unit)
Sliz Rafal (Associate Professor [Tenure Track])
Myllylä Teemu (Associate Professor [Tenure Track]) / MIPT unit
Alasaarela Esko (Professor Emeritus)

Senior research fellows, adjunct professors
Mäkynen Anssi
Bykov Alexander

University lecturers
Schuss Christian

Postdoctoral researchers
Asgari Somayyeh
Hannila Esa
Lauri Janne
Lopushenko Ivan
Sdobnov Anton

Researchers
Arif Ifra
Diaz Dochado Ana
Jabbar Abdul
Juttula Harri
Kaikkonen Ville
Kukkola Katri
Molkoselkä Eero
Moradi Sadegh
Nakhaie Ahooie Nazanin
Nguyen Hai "Harry"
Omidali Mohammadreza
Pelkonen Antti
Roy Ivy
Sieryi Oleksii
Vihriälä Erkki
Zienkiewicz Aleksandra

Assisting personnel in research and education
Remes Kari (Project manager)
Mudiyanselage Shavindu Rajapaksha (Research assistant)
Tabell Eero (Research assistant)
Dona Anuradha Uduwana Athukoralalage (University trainee)
Koskela Atte (University trainee)
Niroula Yumish (University trainee)
Abbas Sayed
Ahtiluoma Jarkko
Mashfikuzzaman Mohammad