\begin{overpic}[width=0.49\textwidth]{ys_ol_CBK1a_12_BSE}
\put(1,74){\colorbox{white}{(\sublabel{ys_ol_CBK1a_12_BSE}) \href{http://dream.misasa.okayama-u.ac.jp/?q=20170608184025-054066}{ys_ol_CBK1a_12_BSE}}}
%%(\subref{ys_ol_CBK1a_12_BSE}) \href{ys_ol_CBK1a_12_BSE}
\color{red}
\put(40.3,70.2){\footnotesize \circle{0.7} \href{http://dream.misasa.okayama-u.ac.jp/?q=20160929201634-539644}{spot of ys_ol_cbk1a@1812}} % 20160929201634-539644 % \vs(6839.0, -3857.5)
\put(48.4,44.8){\footnotesize \circle{0.7} \href{http://dream.misasa.okayama-u.ac.jp/?q=20170608184019-825732}{spot of ys_ol_CBK1a@12}} % 20170608184019-825732 % \vs(6844.9, -3875.6)
%%scale 10 micro meter
\put(1,1){\line(1,0){13.0}}
\end{overpic}