A System for THz Imaging of Low-Contrast Targets Using the Born Approximation
Journal article, 2012

A THz imaging system, operating at 346 GHz and tailored for implementation of an imaging algorithm based on the Born approximation, is presented. The imaging algorithm provides focusing by compensating for the antenna footprint. This allows for using a more simple antenna system without optical focusing. Several aspects of implementing an imaging algorithm based on the Born approximation in THz imaging are discussed and key system properties are highlighted. The performance of the imaging algorithm is verified by imaging two simple dielectric targets. The results indicate that this approach provides a qualitative indication of the distribution of contrast in the samples complex permittivity and is a potential complement to existing imaging techniques.

sub-millimeter

terahertz (THz)

imaging

Born approximation

Author

Robin Dahlbäck

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Tonny Rubaek

Chalmers, Signals and Systems, Signalbehandling och medicinsk teknik, Biomedical Electromagnetics

Mikael Persson

Chalmers, Signals and Systems, Signalbehandling och medicinsk teknik, Biomedical Electromagnetics

Jan Stake

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

IEEE Transactions on Terahertz Science and Technology

2156-342X (ISSN)

Vol. 2 3 361-370 6177710

Areas of Advance

Information and Communication Technology

Life Science Engineering (2010-2018)

Infrastructure

Nanofabrication Laboratory

Subject Categories

Signal Processing

Computer Vision and Robotics (Autonomous Systems)

Other Industrial Biotechnology

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/TTHZ.2012.2189900

More information

Created

10/7/2017