Journal
PHYSICAL REVIEW LETTERS
Volume 115, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.115.087401
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Funding
- EC [CNECT-ICT-604391]
- MIUR through program FIRB-Futuro in Ricerca-Project PLASMOGRAPH [RBFR10M5BT]
- MIUR through program Progetti Premiali-Project ABNANOTECH
- Research Board Grant at University of Missouri
- Center for Excitonics, Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Basic Energy Sciences [desc0001088]
- U.S. Army Research Laboratory
- U.S. Army Research Office through Institute for Soldier Nanotechnologies [W911NF-13-D-0001]
- U.S. Department of Energy [DE-FG02-05ER46203]
- U.S. Department of Energy (DOE) [DE-FG02-05ER46203] Funding Source: U.S. Department of Energy (DOE)
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Recently studied hyperbolic materials host unique phonon-polariton (PP) modes. The ultrashort wavelengths of these modes, as well as their low damping, hold promise for extreme subdiffraction nanophotonics schemes. Polar hyperbolic materials such as hexagonal boron nitride can be used to realize long-range coupling between PP modes and extraneous charge degrees of freedom. The latter, in turn, can be used to control and probe PP modes. Here we analyze coupling between PP modes and plasmons in an adjacent graphene sheet, which opens the door to accessing PP modes by angle-resolved photoemission spectroscopy (ARPES). A rich structure in the graphene ARPES spectrum due to PP modes is predicted, providing a new probe of PP modes and their coupling to graphene plasmons.
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