Reflective Inverse Diffusion
Source abstract
Abstract
Phase front modulation was previously used to refocus light after transmission through scattering media. This process has been adapted here to work in reflection. A liquid crystal spatial light modulator is used to conjugate the phase scattering properties of diffuse reflectors to produce a converging phase front just after reflection. The resultant focused spot had intensity enhancement values between 13 and 122 depending on the type of reflector. The intensity enhancement of more specular materials was greater in the specular region, while diffuse reflector materials achieved a greater enhancement in non-specular regions, facilitating non-mechanical steering of the focused spot. Scalar wave optics modeling corroborates the experimental results.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Random lasers and scattering media · Advanced Optical Imaging Technologies · Optical Polarization and Ellipsometry
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Engineering Physics, Air Force Institute of Technology, Wright-Patterson AFB, OH 45433, USA
Department of Physics, U.S. Air Force Academy, CO 80840, USA
Department of Mathematics & Statistics, Air Force Institute of Technology, Wright-Patterson AFB, OH 45433, USA
Funding
Air Force Office of Scientific Research
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