DOI: 10.1615/RAD-16
ISBN Print: 978-1-56700-458-8
ISSN Online: 2642-5629
ISSN Flash Drive: 2642-5661
NEAR-FIELD COUPLING OF A NANOSTRUCTURED METAMATERIAL WITH A GRAPHENE-COVERED PLATE
SINOPSIS
Coupled surface plasmon/phonon polaritons and hyperbolic modes are known to enhance radiative transport across nanometer vacuum gaps but usually require identical materials. It becomes crucial to achieve strong near-field energy transfer between dissimilar materials for applications like near-field thermophotovoltaic and thermal rectification. In this work, we theoretically demonstrate extraordinary near-field radiative transport between a nanostructured metamaterial emitter and a graphene-covered planar receiver. The results show that by carefully selecting the graphene chemical potential, the total near-field radiative heat flux can be greatly enhanced. The physical mechanism is elucidated by the near-field surface plasmon coupling with fluctuational electrodynamics and dispersion relations.