Electrical spectroscopy of polaritonic nanoresonators

Autor: Sebastián Castilla, Hitesh Agarwal, Ioannis Vangelidis, Yuliy V. Bludov, David Alcaraz Iranzo, Adrià Grabulosa, Matteo Ceccanti, Mikhail I. Vasilevskiy, Roshan Krishna Kumar, Eli Janzen, James H. Edgar, Kenji Watanabe, Takashi Taniguchi, Nuno M. R. Peres, Elefterios Lidorikis, Frank H. L. Koppens

Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-8 (2024)

Abstract One of the most captivating properties of polaritons is their capacity to confine light at the nanoscale. This confinement is even more extreme in two-dimensional (2D) materials. 2D polaritons have been investigated by optical measurements u

Externí odkaz: https://doaj.org/article/c19d4f5ede70489789452250539a835d

Contribution to Excitonic Linewidth from Free Carrier–Exciton Scattering in Layered Materials: The Example of hBN

Autor: Maurício F. C. Martins Quintela, Nuno M. R. Peres

Publikováno v: Applied Sciences, Vol 12, Iss 15, p 7872 (2022)

Scattering of excitons by free carriers is a phenomenon, which is especially important when considering moderately to heavily doped semiconductors in low-temperature experiments, where the interaction of excitons with acoustic and optical phonons is

Externí odkaz: https://doaj.org/article/83d390b235334b6b9039f96e3dc4f2be

Strongly Coupled Magnon–Plasmon Polaritons in Graphene-Two-Dimensional Ferromagnet Heterostructures

Autor: A. T. Costa, Mikhail I. Vasilevskiy, J. Fernández-Rossier, Nuno M. R. Peres

Publikováno v: Nano Letters. 23:4510-4515

Magnons and plasmons are different collective modes, involving the spin and charge degrees of freedom, respectively. Formation of hybrid plasmon–magnon polaritons in heterostructures of plasmonic and magnetic systems faces two challenges, the small

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::857ad0497c6229f4f5e32f6f9878146c
https://doi.org/10.1021/acs.nanolett.3c00907

Quantum surface-response of metals revealed by acoustic graphene plasmons

Autor: Itai Epstein, Antti-Pekka Jauho, Marin Soljacic, Thomas Højlund Christensen, Nuno M. R. Peres, Frank H. L. Koppens, Paulo André Dias Gonçalves, N. Asger Mortensen

Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Nature Communications
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Gonçalves, P A D, Christensen, T, Peres, N M R, Jauho, A P, Epstein, I, Koppens, F H L, Soljačić, M & Mortensen, N A 2021, ' Quantum surface-response of metals revealed by acoustic graphene plasmons ', Nature Communications, vol. 12, no. 1, 3271 . https://doi.org/10.1038/s41467-021-23061-8
Gonçalves, P A D, Christensen, T, Peres, N M R, Jauho, A-P, Epstein, I, Koppens, F H L, Soljačić, M & Mortensen, N A 2021, ' Quantum surface-response of metals revealed by acoustic graphene plasmons ', Nature Communications, vol. 12, no. 1, 3271 . https://doi.org/10.1038/s41467-021-23061-8

A quantitative understanding of the electromagnetic response of materials is essential for the precise engineering of maximal, versatile, and controllable light-matter interactions. Material surfaces, in particular, are prominent platforms for enhanc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44060a9e9beafb7d6226d1f8247b6c4c
https://doaj.org/article/8b6111c48bc944efa63f13d1d1f502e2

Enhancing the hybridization of plasmons in graphene with 2D superconductor collective modes

Autor: Nuno M. R. Peres, Antonio Costa

First published 23 December 2021
We explore ways in which the close proximity between graphene sheets and monolayers of 2D superconductors can lead to hybridization between their collective excitations. We consider heterostructures formed by com

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89e1f4292a0abba94ed928db14399d9f
http://arxiv.org/abs/2109.11275