An Optical Fiber Resonator for Cavity Ring-down Spectroscopic Detection and Measurement of Trace Species

用于腔衰荡光谱检测和痕量物质测量的光纤谐振器

• 批准号: 0228797
• 负责人: Kevin Lehmann
• 金额: $ 10万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-15 至 2005-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0228797&HistoricalAwards=false
• 关键词: Optical; Fiber; Resonator; Cavity; Ring

Professor Kevin Lehmann of Princeton University is supported with an SGER grant from the Analytical and Surface Chemistry Program to develop an optical fiber version of chemical ring down spectroscopy that will allow measurement of trace species in gases and possibly liquids. The method takes advantage of the long pathlength involved in cavity ring down, as well as evanescent properties of the light wave in the fiber. If successful, this sensor could be used to detect chemical and biological species over distances, e.g. using fiber optic cables through buildings or reservoirs. Fiberoptic bundles can be used to multitask the sensing. The use of available communication equipment potentially makes this a viable cost-efficient system. The applications include national security, environmental monitoring, and possibly in vivo medical monitoring.

普林斯顿大学的Kevin Lehmann教授得到了SGER分析和表面化学项目的资助，开发了一种光纤版的化学环down光谱，可以测量气体和可能的液体中的痕量物质。该方法利用了空腔衰减的长路径长度，以及光波在光纤中的倏逝特性。如果成功，这种传感器可以用于远距离探测化学和生物物种，例如使用穿过建筑物或水库的光纤电缆。光纤束可用于多任务传感。利用现有的通信设备可能使这成为一个可行的成本效益高的系统。其应用包括国家安全、环境监测，以及可能的体内医疗监测。