Development of quantum optics devices using rare-earth-metal-doped optical nanofibers

使用稀土金属掺杂光学纳米纤维开发量子光学器件

• 批准号: 21740297
• 负责人: 吉川 豊
• 金额: $ 2.91万
• 依托单位: Kyoto University (2010)The University of Tokyo (2009)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21740297/
• 关键词: 量子エレクトロニクス; 量子光学; 光物性; ナノ材料

The objective of this research project was to develop general-purpose quantum optics devices with rare-metal-doped optical nanofibers, such as single photon generators. However, it was revealed that fabricating nanofibers with a commercial rare-metal-doped fiber is practically difficult because of its impurities. Therefore, we decided to change our research plan to observe nonlinear light-matter interaction with low-level laser power by utilizing evanescent field exuding around a nanofiber core. To this end, we fabricated a nanofiber for 1.5-micron lasers and successfully observed saturated absorption spectra of acetylene molecules with a laser power as low as 10 mW.

该研究项目的目标是开发具有稀有金属掺杂的光学纳米纤维的通用量子光学器件，例如单光子发生器。然而，据透露，制造纳米纤维与商业稀有金属掺杂的光纤实际上是困难的，因为它的杂质。因此，我们决定改变我们的研究计划，在低功率激光下，利用闪烁核周围的倏逝场来观察光与物质的非线性相互作用。为此，我们制作了一个1.5微米激光器的放大器，并成功地观察到乙炔分子的饱和吸收光谱与激光功率低至10毫瓦。