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Al-doped CsLiB6O10 crystals were grown by the top-seeded solution growth method in large sizes with good optical quality. We reveal for the first time that these crystals exhibit outstanding UV-induced damage resistant performance.
We constructed a laser scanning terahertz (THz) imaging system for high-speed imaging by using a galvano scanner and an organic nonlinear optical crystal, DASC, as a two-dimensional THz emitter. Using this system, we succeeded in obtaining high-resolution THz images of a test sample.
We succeeded in growing single crystal of bis[4-dimethylamino-N-methyl-4-stilbazolium] terephthanate (BDAS-TP) by using a solution-slow-cooling technique. We obtained a broadband THz spectrum from BDAS-TP crystal.
In situ observation of inelastic light scattering in the boson region during heating was performed in glassy fresnoite (Ba2TiSi2O8) with a homogenenous nucleation tendency to elucidate its nanocrystallization dynamics. The nucleation and crystal-growth processes are discussed on the basis of our boson observation results, Cabral's thermodynamic data, and other studies.
In the present paper, we report the generation of mid-IR short-pulse in spectral range of 10 ~ 40 mum (7.5 ~ 30 THz) using DAST(4- dimethylamino-N-methyl-4-stilbazolium tosylate) crystal and the difference frequency is generated.
We have fabricated glass fibers with nonlinear crystalline phase in clad area by laser irradiation, and demonstrated variable optical attenuation by electro-optic effect using the space-selectively crystallized fiber.
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