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A time-resolved z-scan technique using 100 fs laser pulses for measurement of nonlinear refractive indexes is reported. This technique allows us to measure the relaxation times of the nonlinear refractive indexes. Both the magnitude and the relaxation of nonlinear refractive indexes in CS 2 and head-to-tail poly(3-alkylthiophene) were measured. We found that there are two decay components...
Highly c-axis oriented Rh-doped BaTiO 3 thin films were grown on MgO (100) substrates by pulsed laser deposition using a single-crystal Rh:BaTiO 3 target. The 150-nm thick films were deposited at 800 o C under the oxygen pressure of 7x10 -2 Pa. The structural properties of the samples were characterized by X-ray diffraction and atomic force microscopy. The full...
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