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We have been developing novel widely tunable terahertz wave sources using nonlinear optical effects, and we have suggested a whole range of real-life applications using terahertz CT, metal mesh sensor, and time of flight tomography.
We have realized palmtop and tunable THz-wave parametric generator and observed output THz-wave with tuning range of 1-3 THz, with power of more than 100 mW (peak), linewidth of less than 10 GHz.
We developed two new kinds of terahertz-wave parametric generators (TPG) by using compact pump sources. One TPG generates high energy and broadband THz-waves with high stability, the other has a potential to be a narrow-linewidth injection-seeded TPG.
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