Paper 13139-27
Paper 13139-27
Progress towards subsurface spectroscopy inside heterogeneous materials using four wave mixing phase conjugation
19 August 2024 • 12:20 PM - 12:35 PM PDT | Conv. Ctr. Room 11B
Abstract
In this presentation we report on our initial work using both degenerate and non-degenerate FWM PC to focus light inside an inert-PBX simulant that contains fluorescent guidestar particles. We present initial spectroscopic data, compare the performance of both the degenerate and non-degenerate cases, and discuss the challenges identified during development. We conclude with a discussion on the next steps for this approach and ways to address the challenges identified.
Presenter
Washington State Univ. (United States)
Dr. Benjamin R. Anderson began his research career at Washington State University in 2008 as a graduate student studying self-healing organic dye-doped polymers using imaging and spectroscopic techniques. He received his Ph.D. in Dec 2013 and then began working at the Applied Sciences Laboratory on a variety of projects with the goal of applying optical techniques to solve real-world problems. Some example solutions developed are tamper-indicating seals using spatial light modulator controlled optical signals, ex-situ thermal impulse sensors for temperature sensing in explosions and fire forensics, optical thermocouples for temperature sensing in extreme environments, single-shot standoff hyperspectral Raman imaging for remote sensing, and feedback-assisted wavefront-shaping for subsurface spectroscopy of heterogeneous materials. He has authored 48 peer-reviewed papers and 31 presentations.