【摘要】 <正>用日产UV-240紫外-可见分光光度计测得Oxazine-9分别溶于甲醇（实线）和乙醇（虚线）的吸收光谱示于图1.染料溶液的浓度均为0.5×10^-4mol/L.图中的纵轴吸收σ代表透过率的对数,即吸收系数与样品厚度的乘积.由图可见,Oxazine-9在两种溶液中的吸收谱相似,它们在500～620nm范围内有强的吸收,峰值位置在600nm附近,这是对应于染料分子从单态的基态S₀到第一激发态S₁的吸收.由于振动、转动态与电子态的耦合,以及溶剂分子与染料分子的相互作用,这一吸收谱扩展为半宽度大约为60nm的吸收带.除了可见光部分这一更多还原

【Abstract】 In this paper the synthesis of laser dye oxazine-9 is described briefly. The laseroutput with band width between 640~675 nm pumped by 532 nm laser pulse is obtained. Laser conversion eificiency can reach to as high as 22%. The laser threshold energy is about 0.78mJ.更多还原