Investigation of optical limiting in Cobalt nanoparticles synthesized by laser ablation

► Synthesized Cobalt nanoparticles by laser ablation using nsec pulses at 1064 nm. ► Studied optical limiting by scattering, temporal profiles and Z-scan measurements. ► Studies with various concentrations indicate optical limiting is fluence dependent. ► Cobalt nanoparticles show superior optical limiting compared to fullerene C60.