| 摘要 |
PURPOSE:To obtain dye laser having Gauss distribution or light intensity distribution similar to the Gauss distribution, by forming scattering surface on the excitation laser-light transmitting surface of a dye cell. CONSTITUTION:Exciting laser light W is condensed through a cylindrical lens 12 with respect to the forming direction of a dye flow path 11, i.e., the flowing direction S of a dye solution. The light is projected on a ground-glass state scattering surface 13 of a coloring matter cell 10. Since the light W is scattered when the light is transmitted through the surface 13, the intensity distribution of the light W in the flow path 11 becomes uniform. Therefore, even if the lateral modes of the light W are multiple and the intensity distribution has a doughnut shape, the effect of the light intensity distribution is not imparted. The intensity distribution of the excitation laser light W becomes uniform in the flow path. As a result, oscillating dye laser light Qa has Gauss distribution or distribution similar to the Gauss distribution. |
