\begin{overpic}[width=0.49\textwidth]{ys_dnd_CBK1a_49_BSE}
\put(1,74){\colorbox{white}{(\sublabel{ys_dnd_CBK1a_49_BSE}) \href{http://dream.misasa.okayama-u.ac.jp/?q=20170516194027-934955}{ys_dnd_CBK1a_49_BSE}}}
%%(\subref{ys_dnd_CBK1a_49_BSE}) \href{ys_dnd_CBK1a_49_BSE}
\color{red}
\put(43.4,38.8){\footnotesize \circle{0.7} \href{http://dream.misasa.okayama-u.ac.jp/?q=20170510080411-480473}{spot of ys_dnd_CBK1a@41}} % 20170510080411-480473 % \vs(1937.8, -4534.7)
\put(48.9,42.6){\footnotesize \circle{0.7} \href{http://dream.misasa.okayama-u.ac.jp/?q=20170516194022-719206}{spot of ys_dnd_CBK1a@49}} % 20170516194022-719206 % \vs(1941.9, -4532.3)
%%scale 10 micro meter
\put(1,1){\line(1,0){14.0}}
\end{overpic}