Plasmonics in argentene

© 2020 American Physical Society. Merging concepts from the fields of ab initio materials science and nanophotonics, there is now an opportunity to engineer new photonic materials whose optical, transport, and scattering properties are tailored to attain thermodynamic and quantum limits. Here we pre...

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Main Authors: Sundararaman, Ravishankar, Christensen, Thomas, Ping, Yuan, Rivera, Nicholas, Joannopoulos, John D, Soljačić, Marin, Narang, Prineha
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:English
Published: American Physical Society (APS) 2021
Online Access:https://hdl.handle.net/1721.1/136119
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author Sundararaman, Ravishankar
Christensen, Thomas
Ping, Yuan
Rivera, Nicholas
Joannopoulos, John D
Soljačić, Marin
Narang, Prineha
author2 Massachusetts Institute of Technology. Department of Physics
author_facet Massachusetts Institute of Technology. Department of Physics
Sundararaman, Ravishankar
Christensen, Thomas
Ping, Yuan
Rivera, Nicholas
Joannopoulos, John D
Soljačić, Marin
Narang, Prineha
author_sort Sundararaman, Ravishankar
collection MIT
description © 2020 American Physical Society. Merging concepts from the fields of ab initio materials science and nanophotonics, there is now an opportunity to engineer new photonic materials whose optical, transport, and scattering properties are tailored to attain thermodynamic and quantum limits. Here we present first-principles calculations predicting that Argentene, a single-crystalline hexagonal close-packed monolayer of Ag, can dramatically surpass the optical properties and electrical conductivity of conventional plasmonic materials. In the low-frequency limit, we show that the scattering rate and resistivity reduce by a factor of 3 compared to the bulk three-dimensional metal. Most importantly, the low scattering rate extends to optical frequencies in sharp contrast to, e.g., graphene, whose scattering rate increase drastically in the near-infrared range due to optical-phonon scattering. Combined with an intrinsically high carrier density, this facilitates highly confined surface plasmons extending to visible frequencies. We evaluate Argentene across three distinct figures of merit, in each outperforming the state-of-the-art, making it a valuable addition to the two-dimensional heterostructure toolkit for quantum optoelectronics.
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spelling mit-1721.1/1361192023-03-15T19:11:53Z Plasmonics in argentene Sundararaman, Ravishankar Christensen, Thomas Ping, Yuan Rivera, Nicholas Joannopoulos, John D Soljačić, Marin Narang, Prineha Massachusetts Institute of Technology. Department of Physics © 2020 American Physical Society. Merging concepts from the fields of ab initio materials science and nanophotonics, there is now an opportunity to engineer new photonic materials whose optical, transport, and scattering properties are tailored to attain thermodynamic and quantum limits. Here we present first-principles calculations predicting that Argentene, a single-crystalline hexagonal close-packed monolayer of Ag, can dramatically surpass the optical properties and electrical conductivity of conventional plasmonic materials. In the low-frequency limit, we show that the scattering rate and resistivity reduce by a factor of 3 compared to the bulk three-dimensional metal. Most importantly, the low scattering rate extends to optical frequencies in sharp contrast to, e.g., graphene, whose scattering rate increase drastically in the near-infrared range due to optical-phonon scattering. Combined with an intrinsically high carrier density, this facilitates highly confined surface plasmons extending to visible frequencies. We evaluate Argentene across three distinct figures of merit, in each outperforming the state-of-the-art, making it a valuable addition to the two-dimensional heterostructure toolkit for quantum optoelectronics. 2021-10-27T20:30:53Z 2021-10-27T20:30:53Z 2020 2021-07-09T14:46:08Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/136119 en 10.1103/PHYSREVMATERIALS.4.074011 Physical Review Materials Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS
spellingShingle Sundararaman, Ravishankar
Christensen, Thomas
Ping, Yuan
Rivera, Nicholas
Joannopoulos, John D
Soljačić, Marin
Narang, Prineha
Plasmonics in argentene
title Plasmonics in argentene
title_full Plasmonics in argentene
title_fullStr Plasmonics in argentene
title_full_unstemmed Plasmonics in argentene
title_short Plasmonics in argentene
title_sort plasmonics in argentene
url https://hdl.handle.net/1721.1/136119
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