Experimental Demonstration of 0.4-meter Ranging Through Underwater Scattering with 20-mm Resolution Using z- dependent Angular Rotation of a Spatially Structured Beam

We experimentally demonstrate a 0.4-meter underwater optical ranging with a 20-mm resolution through underwater scattering (extinction coefficient γ up to 9.4 m ‐1 ) utilizing the z-dependent angular rotation of a spatially structured beam.