标题： 离子跃迁上的巨库仑展宽和拉曼激光 显示英文标题

标题： Giant Coulomb broadening and Raman lasing on ionic transitions

摘要： 在多个蓝绿氩离子线（4p-4s，4p-3d）上实现了反斯托克斯拉曼激光的CW产生，其光学泵浦来自亚稳态水平 3d'^2G，3d^4F。 发现由于速度空间中的库仑扩散，种群转移速率增加了3-5倍（因此，这种拉曼激光的输出功率也增加了）。 测定了亚稳态水平的激发和弛豫速率。 使用探测场技术记录了亚稳态水平上的Bennett空洞。 已经表明，库仑扩散改变了轮廓形状为指数尖峰轮廓，而其宽度变为洛伦兹型的100倍，并达到接近多普勒宽度的值。 这种巨大的展宽也由吸收饱和曲线的形状得到证实。 显示英文摘要

摘要： CW generation of anti-Stokes Raman laser on a number of blue-green argon-ion lines (4p-4s, 4p-3d) has been demonstrated with optical pumping from metastable levels 3d'^2G, 3d^4F. It is found, that the population transfer rate is increased by a factor of 3-5 (and hence, the output power of such Raman laser) owing to Coulomb diffusion in the velocity space. Measured are the excitation and relaxation rates for the metastable level. The Bennett hole on the metastable level has been recorded using the probe field technique. It has been shown that the Coulomb diffusion changes shape of the contour to exponential cusp profile while its width becomes 100 times the Lorentzian one and reaches values close to the Doppler width. Such a giant broadening is also confirmed by the shape of the absorption saturation curve.