Update on Overleaf.

main.tex

@@ -328,13 +328,13 @@ where $I=\frac{n}{2}\sqrt{\frac{\epsilon_0}{\mu_0}}\left|\vec{E}\right|^2$ is th
 
 \begin{figure*}[ht!]
 \centering
-\begin{tabular*}{0.73\textwidth}{ c@{\extracolsep{\fill}} c@{\extracolsep{\fill}} c@{\extracolsep{\fill}} c@{\extracolsep{\fill}} c}
-$-80 fs$&$-60 fs$&$-30 fs$&$ -20 fs$&$ -10 fs$\\
+\begin{tabular*}{0.76\textwidth}{ c@{\extracolsep{\fill}} c@{\extracolsep{\fill}} c@{\extracolsep{\fill}} c@{\extracolsep{\fill}} c}
+$-80\:f\!s$&$-60\:f\!s$&$-30\:f\!s$&$ -20\:f\!s$&$ -10\:f\!s$\\
 \end{tabular*}
 \includegraphics[width=0.9\textwidth]{2nm_75}
 \includegraphics[width=0.9\textwidth]{2nm_100}
 \includegraphics[width=0.9\textwidth]{2nm_115}
-\caption{\label{plasma-105nm} Pulse duration 80~fs Split figure \ref{fig2} into two, this is first part.}
+\caption{\label{plasma-105nm} Evolution of lectron density $n_e$ (using $10^{\,20} \ {\rm cm}^{-3}$ units) for  (a--e)~$R=75$, (f--j)~$R=100$~nm, and (k--o)~$R=115$~nm. Gaussian pulse duration $80\:f\!s$, snapshot are taken before the pulse maxima, the corresponding time-shifts are shown in the top of each column.}
 \end{figure*}
 
 The changes of the real and imaginary parts of the permittivity associated with the time-dependent free carrier response \cite{Sokolowski2000} can be derived from equations (\ref{Maxwell}, \ref{Drude}) and are written as follows