Measurement and verification of concentration-dependent diffusion coefficient: Ray tracing imagery of diffusion process

Wei Li¹, Meng Wei-Dong^{1, 2}, Sun Li-Cun³, Cao Xin-Fei¹, Pu Xiao-Yun^{1, 2, †}

Comparison between experimental diffusion images and simulated images at RI = n_c = 1.3994 for the second diffusion group (40%–100%): [(a′), (b′), (c′)] experimental diffusion images at t = 40, 360, and 540 min; [(a), (b), (c)] simulated images in “homogeneous solution”; [(a″), (b″), (c″)] simulated images in inhomogeneous solution. Longitudinal scales represent solution concentrations.