Transport at Nanoscale Interfaces Laboratory

Towards the assessment of biomechanical interfaces: topography of hidden objects obtained with THz holography.

Valzania, L., Zolliker, P., & Hack, E.

 In Proceedings of the 42nd international conference on infrared, millimeter and terahertz waves IRMMW-THz 2017

We report on the first steps towards THz imaging of biomechanical interfaces. A THz digital holography setup in reflection is used with synthetic aperture techniques to reconstruct the profile of a fingertip replica with a lateral resolution of 200 μm and a depth resolution of 20 μm. A method for the reconstruction of the profile of a sample hidden behind a THz-transparent material is also proposed. Experimental proof is provided by retrieving the bent profile of a metallic resolution target behind a Teflon plate.