Ultra-Fast Infrared Spectroscopy Using a Focal Plane Array for the Real Time Detection of Chemical and Biological Agents

特拉华州大学的John Rabolt教授和杜邦公司的布鲁斯蔡斯博士得到了分析和表面化学计划的SGER资助，以开发一种红外焦平面阵列光谱仪，用于实时检测气体中的化学和生物制剂。 该方法消除了FTIR光谱学的一些问题，包括吸湿光学和由于移动部件对对准的敏感性。 建议的光谱仪，已经证明在34000至2000 cm-1区域，利用反射光学和分散和阵列检测，使没有移动部件。 该团队将把操作扩展到红外指纹区域，以便获得更多的化学特异性。 这种坚固耐用的仪器可以进行真实的实时采样，并将在国家安全、环境和工业过程监测中得到应用。

Professor John Rabolt of the University of Delaware and Dr. Bruce Chase of Dupont Corporation are supported by an SGER grant from the Analytical and Surface Chemistry Program to develop an infrared focal plane array spectrometer for the real-time detection of chemical and biological agents in gases. The method eliminates some of the problems of FTIR spectroscopy including hygroscopic optics and sensitivity to alignment due to moving parts. The proposed spectrometer, already demonstrated in the 34000 to 2000 cm-1 region, utilizes reflection optics and dispersal and array detection so that there are no moving parts. The team will extend operation to the IR fingerprint region so that more chemical specificity can be obtained. The rugged instrument can sample in real time and would have applications in national security, environmental and industrial process monitoring.