© Hiroaki Matsumoto, Katsuji Ito, Kiyomi Kawasaki, Yasumitsu Ueki (Hitachi Science Systems, Ltd.)
The structure looks like treetop is an aggregate of colloidal gold particles. The structure was formed by an electron beam irradiation in a transmission electron microscope.
At 56th photo contest hosted by the Japanese Society of Electron Microscopy in 2000.
Condition