Active Temporal Control of Radiative Heat Transfer with Graphene Nanodisks

摘要: The ability to dynamically control the radiative transfer of heat at nanoscale holds key development a diverse number technologies, ranging from thermal-management systems improved thermophotovoltaic devices. Recently, graphene has emerged as an ideal material achieve this goal, since it can be electrically doped support surface plasmons, collective oscillations conduction electrons. These resonances produce large and spectrally narrow optical cross sections, which dictate emission absorption properties nanostructure and, thus, that radiatively exchanges with other objects environment. For attainable levels doping, plasmons supported by nanostructures naturally lie in midinfrared part spectrum, is most relevant wavelength range for under realistic temperatures. Furthermore, these are actively tunable, thus providing full dynamic over transfer. Motivated great potential, we present comprehensive analysis temporal evolution between arrangements nanodisks, showing possible exploit tunability structures obtain controlled scenarios not conventional passive nanostructures. results work provide framework achieving fully dynamical fundamental insights into process.