Nanowatt threshold, alumina sensitized neodymium laser integrated on silicon.
Nanowatt threshold, alumina sensitized neodymium laser integrated on silicon.
复制标题
DOI：
10.1364/oe.21.027238
复制
发表时间：
2013-11
期刊：
影响因子：
3.8
通讯作者：
A. Maker;A. Armani
中科院分区：
文献类型：
--
作者：
A. Maker;A. Armani
基于稀土元素的低阈值激光器已经在工业中实现了许多科学发现和创新。然而，将阈值推到亚微瓦范围一直受到基本材料现象的阻碍。具体地，稀土掺杂剂形成猝灭发射并降低效率的簇。在这里，我们制造的谐振腔激光器掺钕的二氧化硅薄膜含有氧化铝。氧化铝可以防止钕的聚集，使激光器在室温下达到530毫瓦的阈值。
Low threshold lasers based on rare-earth elements have enabled numerous scientific discoveries and innovations in industry. However, pushing the threshold into the sub-microwatt regime has been stymied by a fundamental material phenomenon. Specifically, rare earth dopants form clusters which quench emission and reduce efficiency. Here, we fabricate resonant cavity lasers from neodymium-doped silica films containing alumina. The alumina prevents the clustering of the Neodymium, enabling the lasers to achieve thresholds of 530 nanoWatts at room temperature.