plot the real and imaginary parts of the effective permittivity

plot the real and imaginary parts of the effective permittivity

a two-dimensional metal-dielectric composite consists of spherical Ag nanoparticles of average 20nm on a glass layer. The permittivity for the glass iseglass=1-3i and for the silveresilver=10-i with a filling factor f=25% for Ag.Use drude’s model to plot the real and imaginary components of the effective permittivity for wavelength ranging between 200nm and 1000nm if the damping of electron oscillations is =0.5 eV.see the attachment file

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