Picture Gallery

Acoustomigration in Al finger electrodes
standing SAW field measured via Laser-Doppler vibrometry
Etched SiO2 tracks on LiNbO3
Acoustic immersion blender
Charged dielectric structures observed in SEM
Structured piezoelectric wafers
Tensile stressed Ni layer
Height profile of finger electrodes
Buried electrodes fabricated in Cu damascene technique
Heatmap of high-power driven SAW device
Standalone demonstrator for acoustofluidic cell sorting
Chip holder for acoustofluidic studies (in inverse optical microscope)
Acoustofluidic chip
Microfluidic channel on piezoelectric wafer surface

Video Gallery

Acoustofluidic sorting of complex suspensions

Standing acoustic waves give rise to pressure gradients in a microfluidic channel filled with a particle suspension. Particles move to the sidewalls based on their size and the applied power.

Wireless Sensor & Identification System

Working principle of a delay-line type radio-frequency identification tag (RFID) based on surface acoustic wave technology and its use for temperature measurement by time-domain signal shift.

Wireless Sensor & Identification System - Implementation

Principle of the implementation of a wireless, autark SAW-based temperature measurement sensor in a sputter-deposition chamber.

Frequency Filtering of RF signals

Working principle of a frequency filter for radio-frequency signals based on surface acoustic wave technology and its use within cell phones.

Acoustic tweezers for cell trapping

Working principle of acoustic tweezers based on surface acoustic wave technology and its use for contactfree cell trapping in a microfluidic vessel.