Tomadin, Andrea and Principi, Alessandro and Song, Justin C. W. and Levitov, Leonid S. and Polini, Marco (2015) Accessing Phonon Polaritons in Hyperbolic Crystals by Angle-Resolved Photoemission Spectroscopy. Physical Review Letters, 115 (8). Art. No. 087401. ISSN 0031-9007. doi:10.1103/PhysRevLett.115.087401. https://resolver.caltech.edu/CaltechAUTHORS:20150702-143753769
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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.
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| Alternate Title: | Accessing phonon polaritons in hyperbolic crystals by ARPES | ||||||||||||||||||
| 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. | ||||||||||||||||||
| Group: | Walter Burke Institute for Theoretical Physics, Institute for Quantum Information and Matter | ||||||||||||||||||
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| Issue or Number: | 8 | ||||||||||||||||||
| Classification Code: | PACS numbers: 78.67.Wj, 73.20.Mf, 81.05.Xj | ||||||||||||||||||
| DOI: | 10.1103/PhysRevLett.115.087401 | ||||||||||||||||||
| Record Number: | CaltechAUTHORS:20150702-143753769 | ||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150702-143753769 | ||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||
| ID Code: | 58758 | ||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||
| Deposited By: | Joy Painter | ||||||||||||||||||
| Deposited On: | 06 Jul 2015 14:57 | ||||||||||||||||||
| Last Modified: | 10 Nov 2021 22:10 |
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