13:30 〜 15:30
▲ [19p-P2-1] Polished surfaces measurements for Laser Speckle Methods with Ultraviolet-rays
キーワード：Laser Speckle, Ultraviolet-rays, Polished surfaces
In this experiment, two kinds of mirrors of gold and aluminum were selected, which are the most similar to the piezoelectric resonators of polishing surfaces. Using an incident laser, the scattering reflectance ratio for the mirror finished was determined by a detector installed in the vertical direction. Several experiments were carried out using laser-beams of the wavelength 377 nm, 456 nm and 656 nm, at incident angles of 15 and 30 degrees, respectively. As results, the measured data is consistent with the simulation results.