【摘要】 研究了磷酸盐激光玻璃在120fs,800nm,1kHz脉冲激光照射下的光致暗化现象并测出了它们的光致暗化阈值.由ESR分析得出,磷酸盐玻璃的光致暗化来源于飞秒激光照射处玻璃因激光照射时的多光子吸收而产生的色心.分析了Nd3+对磷酸盐玻璃的光致暗化的影响并讨论了色心的类型.更多还原

【Abstract】 Laser-induced darkening in phosphate laser glasses irradiated by an 800nm, 120fs, 1kHz Ti:sapphire laser was studied for the first time. The ESR spectra of irradiated glass shows laser-induced darkening results from color-center generation through multi-photon absorption. The type of the color-center as hole trapped on non-bridging oxygen.更多还原