Title :
Very compact THz-TDS imaging system with diffraction limited spatial resolution
Author :
Watanabe, S. ; Shimano, Ryo
Author_Institution :
Sch. of Sci., Univ. of Tokyo, Tokyo
Abstract :
Development of a very compact terahertz time domain spectroscopy (THz-TDS) imaging system with diffraction-limited spatial resolution is presented. The size of our device made of a cupper rod is 20 mm diameter times 61 mm length. Four parabolic-shaped concave mirrors dug in the rod effectively focus a THz beam on a sample, achieving ~0.45 effective numerical aperture.
Keywords :
submillimetre wave imaging; submillimetre wave spectroscopy; THz-TDS imaging system; diffraction limited spatial resolution; size 20 mm; size 61 mm; terahertz time domain spectroscopy; Apertures; Diffraction; Focusing; Frequency; Mirrors; Optical imaging; Performance evaluation; Silicon; Spatial resolution; Spectroscopy; submillimeter wave devices; submillimeter wave imaging; submillimeter wave spectroscopy;
Conference_Titel :
Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-1438-3
DOI :
10.1109/ICIMW.2007.4516393
