Gold　silver　bimetallic　nanoparticles　with　broad　plasmon　response　were　fabricated　on　soft　substrates　using　a　laser-induced　transfer　technique.　The　bimetallic　nanostructures　were　fabricated　with　centimeter　scale.　By　careful　design,　an　approximately　200-nm　broad　plasmon　response　can　be　obtained　by　gold　silver　alloy　nanoparticles,　which　can　be　attributed　to　the　electromagnetic　interaction　between　gold　and　silver　nanoparticles.　This　nanofabrication　technique　provides　an　annealing-free　approach　for　the　fabrication　of　flexible　bimetallic　nanostructures　with　a　broad　plasmon　response　with　low　cost.　(C)　2015　Society　of　Photo-Optical　Instrumentation　Engineers　(SPIE)