...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Preparation of transparent cobalt doped glass ceramic and application as saturable absorber Q switch for 1.54 μm Er-glass laser
【24h】

Preparation of transparent cobalt doped glass ceramic and application as saturable absorber Q switch for 1.54 μm Er-glass laser

机译：透明钴掺杂玻璃陶瓷的制备及其作为1.54μm-玻璃激光器的饱和吸收剂Q开关的应用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Glass with composition of 51SiO_2-24.5Al_2O _3-23MgO-1.5K_2O doped with Co~(2+) ions was prepared by conventional melting method. The glass sample was heated at 900°C for 360 min under atmosphere, and the powder XRD measurement showed that crystalline phase successfully precipitated in the sample. As is compared with standard JCPDS card, the crystalline phase identified as a mixture of zirconium titanate (ZrTiO4) and one of the compounds of magnesium aluminum oxide. The crystallite size was confirmed by transmission electron microscope (TEM) observation; it could be estimated as 30 nm in diameter from the TEM image. Based on the area ratio of crystalline phase and residual glass phase, the precipitated crystallite phase volume ratio can be estimated to be not higher than 30% in the Co~(2+) doped glass ceramic sample. The absorption coefficient at 1.54 μm for transparent glass ceramic sample is clearly higher than that in base glass, which can be explained by the fact that Co~(2+) ions entered into the precipitated nano-sized crystal phase and led to higher absorption coefficient at 1.54 μm for tetrahedral coordinated Co~(2+) ion. Consequently, the Co~(2+) doped transparent glass ceramic sample with thickness of 0.35 mm was used as a saturable absorber for 1.54 μm Er-glass laser oscillation, and Q switched pulses with pulse energy of 40 mJ, pulse width of 42 ns, and peak power of 0.95 mW were shown in the experiments.
机译：采用常规熔融法制备了掺有Co〜（2+）离子的51SiO_2-24.5Al_2O_3-23MgO-1.5K_2O组成的玻璃。将玻璃样品在大气压下于900°C加热360分钟，粉末XRD测量表明结晶相已成功沉淀在样品中。与标准JCPDS卡相比，该晶体相被标识为钛酸锆（ZrTiO4）和氧化铝镁化合物之一的混合物。通过透射电子显微镜（TEM）观察确认了微晶尺寸。根据TEM图像，其直径估计为30 nm。基于结晶相和残余玻璃相的面积比，可以估计出在掺杂Co〜（2+）的玻璃陶瓷样品中析出的微晶相的体积比不大于30％。透明玻璃陶瓷样品在1.54μm处的吸收系数明显高于基础玻璃，这可以通过以下事实解释：Co〜（2+）离子进入沉淀的纳米晶相并导致更高的吸收系数对于四面体配位的Co〜（2+）离子为1.54μm。因此，将厚度为0.35 mm的Co〜（2+）掺杂的透明玻璃陶瓷样品用作1.54μmEr玻璃激光振荡的可饱和吸收剂，以及Q开关脉冲，脉冲能量为40 mJ，脉冲宽度为42 ns实验中显示出0.95 mW的峰值功率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号