eprintid: 10074888
rev_number: 23
eprint_status: archive
userid: 608
dir: disk0/10/07/48/88
datestamp: 2019-05-29 13:04:10
lastmod: 2021-11-23 01:16:36
status_changed: 2019-05-29 13:04:10
type: article
metadata_visibility: show
creators_name: Ren, Q
creators_name: You, JW
creators_name: Panoiu, NC
title: Large enhancement of the effective second-order nonlinearity in graphene metasurfaces
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F46
note: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: Using a powerful homogenization technique, one- and two-dimensional graphene metasurfaces are homogenized both at the fundamental frequency (FF) and second harmonic (SH). In both cases, there is excellent agreement between the predictions of the homogenization method and those based on rigorous numerical solutions of Maxwell equations. The homogenization technique is then employed to demonstrate that, owing to a double-resonant plasmon excitation mechanism that leads to strong, simultaneous field enhancement at the FF and SH, the effective second-order susceptibility of graphene metasurfaces can be enhanced by more than three orders of magnitude as compared to the intrinsic second-order susceptibility of a graphene sheet placed on the same substrate. In addition, we explore the implications of our results on the development of new active nanodevices that incorporate nanopatterned graphene structures.
date: 2019-05-15
date_type: published
publisher: AMER PHYSICAL SOC
official_url: https://doi.org/10.1103/PhysRevB.99.205404
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 1660013
doi: 10.1103/PhysRevB.99.205404
lyricists_name: Panoiu, Nicolae-Coriolan
lyricists_name: You, Jianwei
lyricists_id: NPANO59
lyricists_id: JWYOU76
actors_name: Allington-Smith, Dominic
actors_id: DAALL44
actors_role: owner
full_text_status: public
publication: Physical Review B
volume: 99
number: 20
article_number: 205404
pages: 10
issn: 2469-9969
citation:        Ren, Q;    You, JW;    Panoiu, NC;      (2019)    Large enhancement of the effective second-order nonlinearity in graphene metasurfaces.                   Physical Review B , 99  (20)    , Article 205404.  10.1103/PhysRevB.99.205404 <https://doi.org/10.1103/PhysRevB.99.205404>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10074888/1/Panoiu_PhysRevB.99.205404.pdf