Engineering Research Equipment Grant: RF Signal Generation and Analysis Instrumentation (for Coherent Sensor Research) REU Supplement

这项提案要求资金购买最先进的仪器，以便在一系列超敏感应用的高频、相干自由空间和光纤传感器上进行先进的研究。特别是，要求仪器设备提供准确的直流到微波频率的产生和分析能力。这种仪器将取代目前在实验中使用零差和外差传感器的过时仪器，应用如下：1)光热光谱和相关的光热研究；2)大气横向湍流相关性研究；3)局部短程湍流研究；4)大气中微量有机分子的探测；5)液体超声性质的研究；6)研究材料的非线性磁光特性；7)利用平衡混频技术开发具有新型偏振和解调技术的新型外差光纤传感器。这些传感器是为局部探测电光和磁光活动而开发的。所要求的具体设备包括：HP：8662A型信号发生器：8644型信号发生器：8562型频谱分析仪：3162型动态信号分析仪。

This proposal requests funds to purchase state-of-the-art instrumentation to permit advanced research to be carried out on high- frequency, coherent free-space and fiber sensors for a range of ultra- sensitive applications. In particular, instrumentation is being requested to provide accurate DC to microwave frequency generation and analysis capability. This instrumentation will replace antiquated instrumentation currently in use in experiments using homodyne and heterodyne sensors in the following applications: 1) photothermal spectroscopy and related photothermal studies; 2) studies of lateral turbulence correlations in the atmosphere; 3) studies of local, short-path turbulence; 4) detection of trace organic molecules in the atmosphere; 5) studies of the ultrasonic properties of liquids up to 2GHz; 6) studies of the non-linear magnetooptical properties of materials; 7) development of new heterodyne fiber sensors with novel polarization and demodulation techniques using balance mixers. These sensors are being developed for local probing of electrooptic and magnetooptic activity. The specific equipment being requested comprises: HP: Model 8662A Signal Gen.: Model 8644 Signal Gen.: Model 8562 Spectrum Analyzer: Model 3162 Dynamic Signal Analyzer.