2019
David Hagenmüller, Johannes Schachenmayer, Cyriaque Genet, Thomas W Ebbesen, Guido Pupillo
Enhancement of the Electron–Phonon Scattering Induced by Intrinsic Surface Plasmon–Phonon Polaritons Journal Article
In: ACS Photonics, 2019.
Abstract | Links | BibTeX | Tags: Condensed Matter - Mesoscale and Nanoscale Physics
@article{Hagenmuller2019,
title = {Enhancement of the Electron–Phonon Scattering Induced by Intrinsic Surface Plasmon–Phonon Polaritons},
author = {David Hagenmüller and Johannes Schachenmayer and Cyriaque Genet and Thomas W Ebbesen and Guido Pupillo},
doi = {10.1021/acsphotonics.9b00268},
year = {2019},
date = {2019-01-01},
journal = {ACS Photonics},
abstract = {We investigate light–matter coupling in metallic crystals where plasmons coexist with phonons exhibiting large oscillator strength. We demonstrate theoretically that this coexistence can lead to strong light–matter interactions without external resonators. When the frequencies of plasmons and phonons are comparable, hybridization of these collective matter modes occurs in the crystal. We show that the coupling of these modes to photonic degrees of freedom gives rise to intrinsic surface plasmon–phonon polaritons, which offer the unique possibility to control the phonon properties by tuning the electron density and the crystal thickness. In particular, dressed phonons with reduced frequency and large wave vectors arise in the case of quasi-2D crystals, which could lead to large enhancements of the electron–phonon scattering in the vibrational ultrastrong coupling regime. This suggests that photons can play a key role in determining the quantum properties of certain materials. A nonperturbative self-consistent Hamiltonian method is presented that is valid for arbitrarily large coupling strengths.},
keywords = {Condensed Matter - Mesoscale and Nanoscale Physics},
pubstate = {published},
tppubtype = {article}
}
We investigate light–matter coupling in metallic crystals where plasmons coexist with phonons exhibiting large oscillator strength. We demonstrate theoretically that this coexistence can lead to strong light–matter interactions without external resonators. When the frequencies of plasmons and phonons are comparable, hybridization of these collective matter modes occurs in the crystal. We show that the coupling of these modes to photonic degrees of freedom gives rise to intrinsic surface plasmon–phonon polaritons, which offer the unique possibility to control the phonon properties by tuning the electron density and the crystal thickness. In particular, dressed phonons with reduced frequency and large wave vectors arise in the case of quasi-2D crystals, which could lead to large enhancements of the electron–phonon scattering in the vibrational ultrastrong coupling regime. This suggests that photons can play a key role in determining the quantum properties of certain materials. A nonperturbative self-consistent Hamiltonian method is presented that is valid for arbitrarily large coupling strengths.2018
David Hagenmüller, Johannes Schachenmayer, Cyriaque Genet, Thomas W Ebbesen, Guido Pupillo
Enhancement of the Electron-Phonon Scattering Induced by Intrinsic Surface Plasmon-Phonon Polaritons Journal Article
In: arXiv:1810.10190 [cond-mat], 2018.
Abstract | BibTeX | Tags: Condensed Matter - Mesoscale and Nanoscale Physics
@article{Hagenmuller2018,
title = {Enhancement of the Electron-Phonon Scattering Induced by Intrinsic Surface Plasmon-Phonon Polaritons},
author = {David Hagenmüller and Johannes Schachenmayer and Cyriaque Genet and Thomas W Ebbesen and Guido Pupillo},
year = {2018},
date = {2018-10-01},
journal = {arXiv:1810.10190 [cond-mat]},
abstract = {We investigate light-matter coupling in metallic crystals where plasmons coexist with phonons exhibiting large oscillator strength. We demonstrate theoretically that this coexistence can lead to strong light-matter interactions without external resonators. When the frequencies of plasmons and phonons are comparable, hybridization of these collective matter modes occurs in the crystal. We show that the coupling of these modes to photonic degrees of freedom gives rise to intrinsic surface plasmon-phonon polaritons, which offer the unique possibility to control the phonon properties by tuning the electron density and the crystal thickness. In particular, dressed phonons with reduced frequency and large wave vectors arise in the case of quasi-2D crystals, which leads to large enhancements of the electron-phonon scattering in the vibrational ultrastrong coupling regime. This suggests that photons can play a key role in determining the quantum properties of certain materials. A non-perturbative self-consistent Hamiltonian method is presented that is valid for arbitrarily large coupling strengths.},
keywords = {Condensed Matter - Mesoscale and Nanoscale Physics},
pubstate = {published},
tppubtype = {article}
}
We investigate light-matter coupling in metallic crystals where plasmons coexist with phonons exhibiting large oscillator strength. We demonstrate theoretically that this coexistence can lead to strong light-matter interactions without external resonators. When the frequencies of plasmons and phonons are comparable, hybridization of these collective matter modes occurs in the crystal. We show that the coupling of these modes to photonic degrees of freedom gives rise to intrinsic surface plasmon-phonon polaritons, which offer the unique possibility to control the phonon properties by tuning the electron density and the crystal thickness. In particular, dressed phonons with reduced frequency and large wave vectors arise in the case of quasi-2D crystals, which leads to large enhancements of the electron-phonon scattering in the vibrational ultrastrong coupling regime. This suggests that photons can play a key role in determining the quantum properties of certain materials. A non-perturbative self-consistent Hamiltonian method is presented that is valid for arbitrarily large coupling strengths.
Publications
2019
Enhancement of the Electron–Phonon Scattering Induced by Intrinsic Surface Plasmon–Phonon Polaritons Journal Article
In: ACS Photonics, 2019.
2018
Enhancement of the Electron-Phonon Scattering Induced by Intrinsic Surface Plasmon-Phonon Polaritons Journal Article
In: arXiv:1810.10190 [cond-mat], 2018.