deletions | additions       diff --git a/Plasmonics.tex b/Plasmonics.tex  index ba2943d..ed685a2 100644  --- a/Plasmonics.tex  +++ b/Plasmonics.tex 
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For gold, typical values of the high-frequency permittivity, $\epsilon_{\infty}$,  the plasma frequency, $\omega_{p}$, and the relaxation rate, $\gamma$,  are: $\epsilon_{\infty}=9.5$, $\hbar\omega=8.95$ eV and $\hbar\gamma=69.1$  meV.(\textbf{CITE} Grady CPL 2004) meV.\cite{Grady_2004}  Non-local correction to the Drude model can be also included by considering the plasmon dispersion.\cite{Dobson_2000}  The metal (complex) permittivity then reads  %