§ Ultrafast Spectroscopy of colloidal nanocrystals
§ Carrier multiplication in carbon nanotubes

§ Transient photoimpedance studies of current biased superconducting MgB₂ microbridges
§ Effect of two superconducting energy gaps on superconductinng recovery dynamics in MgB₂
§ All optical pump-probe transient reflectivity of superconducting MgB₂ amorphous  and epitaxial thin films, and  single crystals