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We demonstrate the engineering of a source of radiation from growing surfaceplasmons (charge density oscillations) in a composite nano-system. Theconsidered hybrid nano-structure consists of a thick layer of a conductingsubstrate on whose surface a plasmon mode is activated conjoining a single orpair of thin sheets of either monolayer graphene, silicene or a two-dimensionalelectron gas as would occur at a hetero-interface. When an electric current ispassed through either a layer or within the substrate, the low-frequencyplasmons in the layer may bifurcate into separate streams due to the drivingcurrent. At a critical wave vector, determined by the separation between layers(if there are two) and their distance from the surface, their phase velocitiesmay be in opposite directions and a surface plasmon instability leads to theemission of radiation (spiler). Spiler takes advantage of the flexibility ofchoosing its constituents to produce sources of radiation. The role of thesubstrate is to screen the Coulomb interaction between two layers or between alayer and the surface. The range of wave vectors where the instability isachieved may be adjusted by varying layer separation and type of material.Applications to detectors and other electromagnetic devices exploitingnano-plasmonics are discussed.

Role Played by Surface Plasmons on Plasma Instability in Composite Layered Structures