  Plasmonics and metamaterials have attracted considerable attention over the
past decade, owing to the revolutionary impacts that they bring to both the
fundamental physics and practical applications in multiple disciplines.
Although the two fields initially advanced along their individual trajectories
in parallel, they started to interfere with each other when metamaterials
reached the optical regime. The dynamic interplay between plasmonics and
metamaterials has generated a number of innovative concepts and approaches,
which are impossible with either area alone. This review presents the
fundamentals, recent advances and future perspectives in the emerging field of
plasmonic metamaterials, aiming to open up new exciting opportunities for
nanoscience and nanotechnology.
