A Practical and Portable Solids-State Electronic Terahertz Imaging System

Sensors (Basel). 2016 Apr 22;16(4):579. doi: 10.3390/s16040579.


A practical compact solid-state terahertz imaging system is presented. Various beam guiding architectures were explored and hardware performance assessed to improve its compactness, robustness, multi-functionality and simplicity of operation. The system performance in terms of image resolution, signal-to-noise ratio, the electronic signal modulation versus optical chopper, is evaluated and discussed. The system can be conveniently switched between transmission and reflection mode according to the application. A range of imaging application scenarios was explored and images of high visual quality were obtained in both transmission and reflection mode.

Keywords: imaging; solid-state electronic components; terahertz.