Abstract
We report on the enhancement of surface plasmon resonances in a holey bidimensional grating of subwavelength size, drilled in a gold thin film coated by a graphene sheet. The enhancement originates from the coupling between charge carriers in graphene and gold surface plasmons. The main plasmon resonance peak is located around 1.5 μm. A lower constraint on the gold-induced doping concentration of graphene is specified and the interest of this architecture for molecular sensing is also highlighted.
Original language | English |
---|---|
Article number | 211108 |
Number of pages | 4 |
Journal | Applied Physics Letters |
Volume | 102 |
Issue number | 21 |
DOIs | |
Publication status | Published - 2013 |
Equipment
-
Scanning electron microscope
Charles Nicaise (Manager) & Francesca Cecchet (Manager)
Technological Platform Morphology - ImagingFacility/equipment: Equipment