Figure 4 | Scientific Reports

Figure 4

From: Multipolar, time-dynamical model for the loss compensation and lasing of a spherical plasmonic nanoparticle spaser immersed in an active gain medium

Figure 4

Evolution of the steady-state plasmonic response of a 10-nm silver nanoparticle as gain is increased in the surrounding medium.

Parameters: εb = 1.85 (ethanol solvent), ω21 = ω0 = 3.21 eV, ħΔ = 0.2. (a–c,g–i) Steady-state dipolar polarizability ; (d–f,l–n) Real part of eigenvalues and , corresponding to each of the polarizability curves.

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