Please use this identifier to cite or link to this item:
http://hdl.handle.net/1843/44018| Type: | Artigo de Periódico |
| Title: | Anomalous non-linear optical response of graphene near phonon resonances |
| Authors: | Lucas Lafetá Prates da Fonseca Alisson Ronieri Cadore Thiago Grasiano Mendes de Sá Kenji Watanabe Takashi Taniguchi Leonardo Cristiano Campos Ado Jorio de Vasconcelos Leandro Malard Moreira |
| Abstract: | In this work we probe the third-order nonlinear optical property of graphene and hexagonal boron nitride and their heterostructure by the use of coherent anti-Stokes Raman spectroscopy. When the energy difference of the two input fields matches the phonon energy, the anti-Stokes emission intensity is enhanced in h-BN, as usually expected, while for graphene an anomalous decrease is observed. This behavior can be understood in terms of a coupling between the electronic continuum and a discrete phonon state. We have also measured a graphene/h-BN heterostructure and demonstrate that the anomalous effect in graphene dominates the heterostructure nonlinear optical response. |
| Subject: | Ótica não-linear Grafeno |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ICX - DEPARTAMENTO DE FÍSICA |
| Rights: | Acesso Restrito |
| metadata.dc.identifier.doi: | https://doi.org/10.1021/acs.nanolett.7b00329 |
| URI: | http://hdl.handle.net/1843/44018 |
| Issue Date: | 25-May-2017 |
| metadata.dc.url.externa: | https://pubs.acs.org/doi/10.1021/acs.nanolett.7b00329 |
| metadata.dc.relation.ispartof: | Nano Letters |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.