One pulse spectroscopic system using multiwavelength is-TPG

Simultaneous generation and detection of multiwavelength terahertz (THz) waves by injection seeded terahertz wave parametric generator (is-TPG) were achieved. The generated THz waves were converted to near-infrared detection beams that appear spatially separated points respectively. Furthermore, one-pulse spectroscopy of saccharides was realized and the dynamic range of more than 60 dB was obtained as a spectroscopic system. The results demonstrated the possibility of significantly shorten the measurement times of spectroscopic systems using is-TPG.