Fig. 4

Factors K_abs (a), K_sca (b), and K_ext (c) for laser radiation with wavelengths 532 (solid line) and 800 nm (short dashed line) and air core–gold shell spherical nanoparticles for r₀ = 5–100 nm and Δr₀ = 10 (1), 20 (2), and 40 (3) in water