Excitation of local surface modes in semiconductor nanoparticles in visible and near UV regions

The effect of excitation of local surface modes in semiconductor nanoparticles is studied experimentally and theoretically for various compounds: titanium dioxide, titanium nitride, tungsten disilicide, molybdenum disilicide. Enhancement of depolarizing properties for non-spherical titania nanoparticles (nanoplatelets and nanoribbons) associated with the excitation of local surface modes is considered. The possibility to retrieve the dielectric function spectrum from the depolarization factor measurements for low-dimensional nanoparticles is discussed.