Lam K S, Lo D, Wong K H
Appl Opt. 1995 Jun 20;34(18):3380-3. doi: 10.1364/AO.34.003380.
Doped and undoped silica slabs were fabricated through the use of the sol-gel technique. Extended UV transmission was observed for HCl-catalyzed sol-gel silica. Under transverse pumping with a XeCl laser, narrow-linewidth (<0.9-nm) laser oscillation from silica slabs doped with coumarin 460 (C460) was achieved in a grating-resonator cavity configured in the grazing-indicence geometry. Tuning of the C460-doped silica laser extended from 468 to 494 nm. The conversion efficiency of the narrow-linewidth blue laser was 5.5%.
通过溶胶-凝胶技术制备了掺杂和未掺杂的二氧化硅平板。观察到盐酸催化的溶胶-凝胶二氧化硅具有扩展的紫外透射率。在XeCl激光横向泵浦下，在掠入射几何结构配置的光栅谐振腔中，实现了掺杂香豆素460（C460）的二氧化硅平板的窄线宽（<0.9纳米）激光振荡。掺杂C460的二氧化硅激光器的调谐范围为468至494纳米。窄线宽蓝光激光器的转换效率为5.5%。
