SGER: Functional Optical Probes for In-Situ Monitoring of the Geo-Environmental

该提案寻求资金来开发“设计和合成”孔隙选择性膜，以用作光纤的涂层。使用这种特殊的包层材料，光纤内辐射的光将与外部环境相互作用，并转换目标物质（氯化碳氢化合物、重金属、多环芳烃等）的存在和浓度。我们提案的结果是实现我们长期目标的第一步：引入化学光学光谱学作为实时，远程监测地下环境中运输过程的工具。此外，根据该赠款正在开发的技术可以利用其他几种侧重于废物控制和场地补救问题的地质环境应用。在电信领域，光纤的生产使得光纤内部的光不会与外部环境相互作用。然而，对于化学传感，可以采用专用多孔包覆材料来充当相互作用区，其中光被其遇到的介质调制。电磁场被称为瞬逝场。倏逝场光谱学已经为科学家所知多年;然而，缺乏对有效涂层材料的生产的集中活动一直是波导化学传感器装置的商业可用性的障碍。

0627312KostarelosThis proposal seeks funding to develop "design and synthesis" poro-selective membranes for application as coatings to optical fibers. Using such specialty cladding materials, the light radiating within the fiber will interact with the outside environment and transduce the presence and concentration of target species (chlorinated hydrocarbons, heavy metals, PAHs, etc.). The results of our proposal are the first steps toward our long-term objective: to introduce chemo-optical spectroscopy as a tool for real-time, remote monitoring of transport processes within the subsurface environment. In addition, several other geo- environmental applications that focus on waste containment and site remediation issues can be exploited by the technology being developed under this grant. In telecommunications, optical fibers are produced so that light inside the fiber does not interact with the external environment. However for chemical sensing, specialty porous cladding materials may be employed to serve as a zone of interaction, where light is modulated by the media it encounters. The electromagnetic field is termed as the evanescent field. Evanescent field spectroscopy has been known to scientists for many years; however, lack of focused activity on the production of effective coating materials has been an obstacle to the commercial availability of waveguide chemical sensor devices.