Laser Absorption Imaging diagnostic system for arc jet facilities

We propose the development of a Laser Absorption Imaging (LAI) diagnostic system, with a design that is specifically optimized for NASA arc jet facilities. We will exploit advances in high-speed infrared cameras and rapidly tunable lasers to image a range of species in the mid-wave infrared spectral range. The spectral / spatial / temporal data will provide needed empirical information. In Phase I, a breadboard system will be assembled, and proof of concept measurements conducted to demonstrate temporally and spatially resolved gas property measurements. Based on the investigations, specific techniques and components will be down selected and risk mitigation strategies developed, culminating with the design of a multi-species prototype that will be fully developed and demonstrated in Phase II.nbsp;