Large-area　plasmonic　photonic　structures　containing　a　proportion　of　quasicrystals　can　be　fabricated　by　a　solution-processable　method.　A　photoresist　film　is　exposed　to　a　multi-beam　interference　pattern　to　form　a　quasicrystal　template.　A　gold　nanoparticle　colloid　is　then　spin-coated　onto　the　template.　An　inverse　pattern　can　be　obtained　after　annealing　to　afford　greater　control　over　the　sample　morphologies　and　spectroscopic　characteristics.　Coupling　between　the　waveguide　modes　and　particle　plasmons　strengthens　with　increasing　annealing　temperature.　After　mode　degeneration　is　removed,　a　multi-mode　coupling　process　is　observed.　These　results　are　helpful　in　understanding　the　mechanisms　and　design　strategies　of　complex　plasmonic　nanostructures.　(C)　2013　Optical　Society　of　America