CaltechAUTHORS
Published August 21, 2015 | Version Published + Supplemental Material + Submitted
Journal Article Open

Accessing Phonon Polaritons in Hyperbolic Crystals by Angle-Resolved Photoemission Spectroscopy

Creators

  • 1. ROR icon National Enterprise for NanoScience and NanoTechnology
  • 2. ROR icon University of Missouri
  • 3. ROR icon California Institute of Technology
  • 4. ROR icon Massachusetts Institute of Technology
  • 5. ROR icon Italian Institute of Technology

Abstract

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.

Additional Information

© 2015 American Physical Society. Received 22 April 2015; published 21 August 2015. We gratefully acknowledge F. H. L. Koppens for useful discussions. This work was supported by the EC under the Graphene Flagship program (Contract No. CNECT-ICT-604391) (A. T. and M. P.), MIUR (A. T. and M. P.) through the programs "FIRB—Futuro in Ricerca 2010"—Project "PLASMOGRAPH" (Grant No. RBFR10M5BT) and "Progetti Premiali 2012"—Project "ABNANOTECH," the U.S. Department of Energy under Grant No. DEFG02-05ER46203 (A. P.), and a Research Board Grant at the University of Missouri (A. P.). Work at MIT was supported as part of the Center for Excitonics, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences under Award No. desc0001088. This work was also supported, in part, by the U.S. Army Research Laboratory and the U.S. Army Research Office through the Institute for Soldier Nanotechnologies, under Contract No. W911NF-13-D-0001. Free software [31] was used.

Attached Files

Published - PhysRevLett.115.087401.pdf

Submitted - songy.pdf

Supplemental Material - supplemental-material.pdf

Files

PhysRevLett.115.087401.pdf

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Additional details

Additional titles

Alternative title
Accessing phonon polaritons in hyperbolic crystals by ARPES

Identifiers

Eprint ID
58758
Resolver ID
CaltechAUTHORS:20150702-143753769

Related works

Describes
http://arxiv.org/abs/1504.05345 (URL)

Funding

European Commission, Graphene Flagship Program
CNECT-ICT-604391
MIUR, FIRB - Futuro in Ricerca 2010
MIUR, Project PLASMOGRAPH
RBFR10M5BT
MIUR, Progetti Premiali 2012 Project ABNANOTECH
University of Missouri
Department of Energy (DOE)
DE-FG02-05ER46203
Department of Energy (DOE)
desc0001088
Army Research Office (ARO)
W911NF-13-D-0001

Dates

Created
2015-07-06
Created from EPrint's datestamp field
Updated
2021-11-10
Created from EPrint's last_modified field

Caltech Custom Metadata

Caltech groups
Walter Burke Institute for Theoretical Physics , Institute for Quantum Information and Matter