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Title: Plexciton Dirac points and topological modes

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms11783· OSTI ID:1287388
 [1]; ORCiD logo [2];  [3];  [4];  [4];  [5];  [5]
  1. Univ. of California, San Diego, La Jolla, CA (United States). Dept. of Chemistry and Biochemistry
  2. Harvard Univ., Cambridge, MA (United States). Dept. of Chemistry and Chemical Biology; Kazan Federal Univ., Kazan (Russian Federation). Dept. of Physics
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Physics, Center for Excitonics, Research Laboratory of Electronics
  4. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Materials Science and Engineering
  5. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Electrical Engineering and Computer Science, Center for Excitonics, Research Laboratory of Electronics

Plexcitons are polaritonic modes that result from the strong coupling between excitons and plasmons. Here, we consider plexcitons emerging from the interaction of excitons in an organic molecular layer with surface plasmons in a metallic film. We predict the emergence of Dirac cones in the two-dimensional band-structure of plexcitons due to the inherent alignment of the excitonic transitions in the organic layer. An external magnetic field opens a gap between the Dirac cones if the plexciton system is interfaced with a magneto-optical layer. The resulting energy gap becomes populated with topologically protected one-way modes, which travel at the interface of this plexcitonic system. Furthermore, our theoretical proposal suggests that plexcitons are a convenient and simple platform for the exploration of exotic phases of matter and for the control of energy flow at the nanoscale.

Research Organization:
Univ. of California, San Diego, La Jolla, CA (United States); Energy Frontier Research Centers (EFRC) (United States). Center for Excitonics (CE)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001088
OSTI ID:
1287388
Journal Information:
Nature Communications, Vol. 7; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 61 works
Citation information provided by
Web of Science

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Cited By (20)

Topological magnetoplasmon journal November 2016
Topological photonics: from crystals to particles text January 2017
Absorption and photoluminescence in organic cavity QED journal May 2017
Topological magnetoplasmon text January 2016
Manipulating type-I and type-II Dirac polaritons in cavity-embedded honeycomb metasurfaces text January 2017
Manipulating type-I and type-II Dirac polaritons in cavity-embedded honeycomb metasurfaces journal June 2018
Plasmon-Exciton Coupling in Complex Systems journal July 2018
Theory for polariton-assisted remote energy transfer preprint January 2017
Vibration-assisted exciton transfer in molecular aggregates strongly coupled to confined light fields text January 2019
Plexcitonics – fundamental principles and optoelectronic applications journal January 2019
Ultrastrong coupling regimes of light-matter interaction text January 2018
Spectrally tunable infrared plasmonic F,Sn:In 2 O 3 nanocrystal cubes journal January 2020
Vibration-assisted exciton transfer in molecular aggregates strongly coupled to confined light fields journal March 2019
Light-emitting metasurfaces journal July 2019
Photonic Versus Electronic Quantum Anomalous Hall Effect text January 2017
Transport and collective radiance in a basic quantum chiral optical model journal September 2017
Continuous transition between weak and ultrastrong coupling through exceptional points in carbon nanotube microcavity exciton–polaritons journal April 2018
Polariton Chemistry: controlling molecular dynamics with optical cavities preprint January 2018
Electron-Beam-Induced Nanopatterning of J-Aggregate Thin Films for Excitonic and Photonic Response Control journal July 2018
Precise determination of excitation energies in condensed-phase molecular systems based on exciton-polariton measurements journal October 2019

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