Akhlesh Lakhtakia, Evan Pugh University Professor and Charles G. Binder Professor of Engineering Science and Mechanics, will explore a new technique to develop physical, seemingly two-dimensional fingerprints into 3D holograms for fingerprint analysis. Credit: Kelby Hochreither/Penn State. All Rights Reserved.

Typically recorded in photographs, fingerprints at a crime scene can help identify perpetrators and ensure they are brought to justice. But a photo of a fingerprint may not deliver the most comprehensive picture possible, according to Akhlesh Lakhtakia

Engineer to develop fingerprints into 3D holograms

The object that is to be made invisible acoustically is placed at the centre of the experiment. The initial acoustic field is produced by the loudspeakers in the outer ring. The 228 control sensors in the central ring record this field and transmit the data to a computer. Subsequently, 36 control sources in the centre emit a secondary signal that augments the initial field in real-​time. (Photograph: ETH Zurich / Astrid Robertsson)

hologram

Engineer to develop fingerprints into 3D holograms

Acoustic illusions