Hi, was trying to reproduce the effects on this site:
After lots of futile attempts, it looks like the solution is very simple after all. Just one hemi light that shines at an angle from behind the subject. that’s all.
I gave Suzanne a little translucency and bump map for that S.E.M. look.
I will look up some real S.E.M. pics on the web and try to reproduce them in Blender.
Let me know if you have suggestions.