\begin{table}%t2
%\centering
\par
\small\caption{Optical and physical properties of the materials used in the calculations at the wavelengths 0.535, 0.6274, and 1.5~$\mu$m.} \label{tabsil}
\begin{tabular}{c c c c c c c c}
\hline \hline
  & AE & CE & AO & CO & a & b & c  \\
\hline
m(0.5350) & (1.58, 2.2E-5)&(1.58, 2.2E-5)&(1.76, 0.089)&(1.63, 5.2E-6)&(1.62, 0.011)&(1.88, 0.423)&(1.79, 0.278)\\
m(0.6274) &(1.57, 2.5E-5)&(1.57,  2.5E-5)&(1.75, 0.069)&(1.63, 8.5E-6)&(1.61, 0.008)&(1.92, 0.378)&(1.81, 0.248)\\
m(1.5000) &(1.54, 4.6E-5)&(1.54, 4.6E-5)&(1.77, 0.060)&(1.62, 3.9E-5)&(1.60, 0.007)&(2.01, 0.164)&(1.87, 0.109)\\
$\rho$ (g $\textrm{cm}^{-3}$) & 2.71 &2.71&3.71&3.27&3.04&1.60&2.10\\
\hline
\end{tabular}
\end{table}