Hirobumi Uchida

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We describe the generation and detection of coherent broadband terahertz waves using ultrashort-pulse fiber laser, and its application to terahertz tomography. A pulse compression technique using nonlinear and dispersion effects of optical fibers leads to the development of high-peak-power 17- fs ultrashort- pulse fiber laser. With the optical rectification(More)
This study investigated the effect of rinsing alginate impressions using acidic electrolyzed water on the dimensional change and deformation of stone models. Two brands of alginate impression materials were used. The impressions were rinsed using tap water or acidic electrolyzed water with a pH of 2.3, an oxidation-reduction potential of 1,230 mV, and a(More)
The present study investigated the effect on the surface quality of resultant stone models of rinsing hydrocolloid impressions using acidic electrolyzed water. Two brands of alginate impression materials (Aroma Fine DFIII, Jeltrate Plus), an agar impression material (Ajisai) designed for agar/alginate combined impression, and dental stone (New Plastone)(More)
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