• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Photonics, Devices, and Systems III >Dielectric annular core optical fiber for chemical trace analysis
【24h】

Dielectric annular core optical fiber for chemical trace analysis

机译：用于化学痕量分析的介电环形芯光纤

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

Use of annular core fiber (ACF) for chemical trace analysis is novel approach in the field of evanescent wave optical sensors. It allows extending the sensitivity of conventional absorbance spectroscopy by extending optical interaction path length of evanescent wave. ACF is waveguide, typically consisting of small diameter tubes capable of guiding light through a sample by evanescent wave. AFC waveguides are capillaries that contain a liquid or gas sample for spectroscopic analysis. The core of doubly clad step index optical fiber is a dielectric annulus lying between two different claddings. Benefit of this solution is possibility to use of small volume samples, long path lengths by constraining light propagation within a liquid or gas medium by evanescent wave. Preform preparation by MCVD process and fiber drawing and coating of this special capillary structure have been realized in the workplace of IREE AS CR. Primary shielding of silica capillary is ultraviolet radiation activated acrylic copolymer. Basic optical characteristic were measured - attenuation, refractive index (RI) profile, loss spectral distribution, near field intensity distribution.
机译：在chemical逝波光学传感器领域，使用环形芯光纤（ACF）进行化学痕量分析是一种新颖的方法。通过延长e逝波的光学相互作用路径长度，可以扩展传统吸收光谱的灵敏度。 ACF是波导，通常由能够通过e逝波将光引导通过样品的小直径管组成。 AFC波导是毛细管，其中包含用于光谱分析的液体或气体样品。双包层阶跃折射率光纤的核心是位于两个不同包层之间的介电环带。该解决方案的好处是可以通过van逝波限制光在液体或气体介质中的传播，从而使用小体积的样本，长路径。在IREE AS CR的工作场所中已经实现了通过MCVD工艺进行的预成型件制备以及这种特殊的毛细管结构的纤维拉伸和涂层。二氧化硅毛细管的主要屏蔽是紫外线辐射活化的丙烯酸共聚物。测量了基本光学特性-衰减，折射率（RI）分布，损耗光谱分布，近场强度分布。

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