Title :
Concentration of terahertz radiation for microsample spectroscopy
Author :
Zhang, W.-D. ; Viveros, L. ; Brown, E.R.
Author_Institution :
Depts. of Phys. & Electr. Eng., Wright State Univ., Dayton, OH, USA
Abstract :
A conical-horn, circular-waveguide coupler was designed and fabricated to couple THz radiation from spectrometers and concentrate it for low-volume samples. A demonstration was carried out on spores of Bacillus thuringiensis (Bt) - a bioparticle known to have strong signatures between 0.9 and 1.1 THz.
Keywords :
submillimetre wave spectroscopy; terahertz spectroscopy; waveguide couplers; circular waveguide coupler; conical horn; frequency 0.9 THz to 1.1 THz; microsample spectroscopy; terahertz radiation; Couplers; Horn antennas; Integrated circuit modeling; Materials; Optical waveguides; Scattering parameters; Vibrations;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956297
