PRECISION MEASUREMENT OF TISSUE TEMPERATURE

Not Available A portable, eye safe multi-spectral lidar system for remote detection and tracking of bioaerosol clouds is proposed. The sensor will provide volumetric range-resolved wind velocity and aerosol concentration measurements to ranges of several kilometers. The backbone of the sensor is a pulsed SWIR coherent Doppler lidar that has been demonstrated as able to detect and track bioaerosol simulant plumes. This existing technology will be augmented with a nonlinear frequency converter to output in the MWIR. This enhanced lidar sensor will enable multi-color aerosol characterization for improved bioaerosol discrimination. A growth path to a frequency-agile MWIR-LWIR differential absorption lidar that will provide additional ability to discriminate aerosol and tracer gas clouds will be provided. In Phase I, CTI will conduct system performance modeling to establish sensitivity and spatial and temporal resolution capability for various system configurations. Hardware design trades will be conducted to develop a low-risk path enabling multi-functionality (Doppler lidar, DISC, and DIAL). A Phase I demonstration of a multi-color transmitter will also be provided to demonstrate the feasibility of the baseline transmitter. A preliminary sensor design will then be developed with technical risk areas and associated mitigation strategies identified. The proposed technology development path is aimed at the Phase II demonstration of a prototype multi-spectral biosensor and the Phase III deployment of a compact, user-friendly ground based or airborne multi-function chem/bio sensor.