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

0627312本提案寻求资金用于开发用于光纤涂层的“设计和合成”孔选择膜。使用这种特殊的包层材料，纤维内部的光将与外部环境相互作用，并转换目标物种(氯代烃、重金属、多环芳烃等)的存在和浓度。我们提议的结果是朝着我们的长期目标迈出的第一步：引入化学光学光谱学作为一种工具，用于实时、远程监测地下环境中的运输过程。此外，根据这项赠款正在开发的技术可以利用其他几个专注于废物控制和场地补救问题的地质环境应用程序。在电信领域，生产光纤时，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，可以使用特殊的多孔覆层材料作为相互作用区，其中光受到其遇到的介质的调制。电磁场被称为瞬变场。多年来，科学家们已经知道了逝去光谱学；然而，缺乏对生产有效涂层材料的关注，一直是波导型化学传感器器件商业化的障碍。

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.