he fi eld of plasmonics has grown dramatically over the
past decade, and still continues growing towards new
directions enabling new fundamental science and device tech-nologies. Research in this area explores how electromagnetic
fi elds can be confi ned over dimensions smaller than the
wavelength. It is based on interaction processes between elec-tromagnetic radiation and conduction electrons at metallic
interfaces or in small metallic nanostructures.,he fi eld of plasmonics has grown dramatically over the past decade, and still continues growing towards new directions enabling new fundamental science and device tech-nologies. Research in this area explores how electromagnetic fi elds can be confi ned over dimensions smaller than the wavelength. It is based on interaction processes between elec-tromagnetic radiation and conduction electrons at metallic interfaces or in small metallic nanostructures.