Three-dimensional (3D) printing

A three-dimensional (3D) printing method, comprising:

• preparing a fusing agent by:
• diluting a dispersion including a plasmonic resonance absorber which is an inorganic pigment selected from the group consisting of lanthanum hexaboride, tungsten bronzes, indium tin oxide, aluminum zinc oxide, ruthenium oxide, silver, gold, platinum, iron pyroxenes, modified iron phosphates (AxFeyPO4), modified copper pyrophosphates (AxCuyP2O7), and combinations thereof;
• centrifuging the diluted dispersion to separate the plasmonic resonance absorber;
• milling the plasmonic resonance absorber;
• and
• incorporating the plasmonic resonance absorber into an aqueous or non-aqueous vehicle including a silane coupling agent;
• applying a polymeric or polymeric composite build material;
• selectively applying the fusing agent on at least a portion of the polymeric or polymeric composite build material;
• and
• exposing the polymeric or polymeric composite build material to electromagnetic radiation, thereby fusing the portion of the polymeric or polymeric composite build material in contact with the fusing agent to form a layer.