Special Issue on T-Ray Imaging, Sensing, and Retection

The seventeen articles in this special issue are devoted to the topic of t-ray pulsed imaging - or T-rays. This part of the spectrum has been coined "terahertz gap" due to the lack of efficient sources that could generate frequencies in this range. Reports on recent advancements in this technology and reports on applications for its use, with special emphasis on the biomedical field.