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3 October 2022 Depth-targeted energy delivery deep inside random scattering media
Hui Cao
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Proceedings Volume PC12197, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XX; PC121970R (2022) https://doi.org/10.1117/12.2633643
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States
Abstract
Depositing energy into a target region deep inside an opaque system by controlling random wave scattering is essential in a wide range of applications. While multiple scattering of light results in a diffusive spread of the wave energy, controlling the incident wavefront of a coherent beam enables the suppression of wave diffusion and the delivery of energy deep inside disordered systems. We conduct experimental, numerical and theoretical studies to reveal the physical mechanisms contributing to energy deposition across an extended target inside a diffusive system, and also find the fundamental limit of energy enhancement using the wavefront control method.
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Hui Cao "Depth-targeted energy delivery deep inside random scattering media", Proc. SPIE PC12197, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XX, PC121970R (3 October 2022); https://doi.org/10.1117/12.2633643
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KEYWORDS
Scattering media
Wavefronts
Destructive interference
Diffusion
Physics
Scattering
Waveguides
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