Electronics Research Laboratory

Laser beam passes through the laser system of the laboratory

SOUND

LIGHT

ELECTRONICS

The Electronics Research Laboratory (ETLA) specializes in applied physics research of sound & light. The main emphasis is to develop methods suitable for the needs of the R&D and industry. To support these goals, our research work concentrates on several applied physics disciplines, the main areas being ultrasonics, photoacoustics, and optical interferometry imaging.

The Electronics Research Laboratory is part of the Division of Materials Physics at the Department of Physics at the University of Helsinki. We are located in the Physicum building’s 3rd floor on the Kumpula Campus, Helsinki, Finland.

Research highlights

Irisarri, J., Ezcurdia, I., Iriarte, N., Sirkka, M. L., Nikolaev, D., Mäkinen, J. M. K., Martinez-Marchese, A., Iablonskyi, D., Salmi, A. & Marzo, A. Electric plasma guided with ultrasonic fields. Science Advances, 2025.
Description “Electric plasma guided with ultrasonic fields” paper:

In this work an interaction mechanism of electric plasma discharge and airborne ultrasound was investigated. A new phenomenon was discovered, the plasma could by trapped and guided along the reconfigurable focused ultrasonic field. This technique can be used in high-voltage switching, patterning bacteria in petri dishes or contactless haptic displays that do not require the user to wear any device.