Quantum surface-response of metals revealed by acoustic graphene plasmons
<jats:title>Abstract</jats:title><jats:p>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 f...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer Science and Business Media LLC
2022
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| Online Access: | https://hdl.handle.net/1721.1/142226 |
| _version_ | 1826212254804082688 |
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| author | Gonçalves, PAD Christensen, Thomas Peres, Nuno MR Jauho, Antti-Pekka Epstein, Itai Koppens, Frank HL Soljačić, Marin Mortensen, N Asger |
| author_facet | Gonçalves, PAD Christensen, Thomas Peres, Nuno MR Jauho, Antti-Pekka Epstein, Itai Koppens, Frank HL Soljačić, Marin Mortensen, N Asger |
| author_sort | Gonçalves, PAD |
| collection | MIT |
| description | <jats:title>Abstract</jats:title><jats:p>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 enhancing electromagnetic interactions and for tailoring chemical processes. However, at the deep nanoscale, the electromagnetic response of electron systems is significantly impacted by quantum surface-response at material interfaces, which is challenging to probe using standard optical techniques. Here, we show how ultraconfined acoustic graphene plasmons in graphene–dielectric–metal structures can be used to probe the quantum surface-response functions of nearby metals, here encoded through the so-called Feibelman <jats:italic>d</jats:italic>-parameters. Based on our theoretical formalism, we introduce a concrete proposal for experimentally inferring the low-frequency quantum response of metals from quantum shifts of the acoustic graphene plasmons dispersion, and demonstrate that the high field confinement of acoustic graphene plasmons can resolve intrinsically quantum mechanical electronic length-scales with subnanometer resolution. Our findings reveal a promising scheme to probe the quantum response of metals, and further suggest the utilization of acoustic graphene plasmons as plasmon rulers with ångström-scale accuracy.</jats:p> |
| first_indexed | 2024-09-23T15:18:28Z |
| format | Article |
| id | mit-1721.1/142226 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:18:28Z |
| publishDate | 2022 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1422262022-05-03T03:06:40Z Quantum surface-response of metals revealed by acoustic graphene plasmons Gonçalves, PAD Christensen, Thomas Peres, Nuno MR Jauho, Antti-Pekka Epstein, Itai Koppens, Frank HL Soljačić, Marin Mortensen, N Asger <jats:title>Abstract</jats:title><jats:p>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 enhancing electromagnetic interactions and for tailoring chemical processes. However, at the deep nanoscale, the electromagnetic response of electron systems is significantly impacted by quantum surface-response at material interfaces, which is challenging to probe using standard optical techniques. Here, we show how ultraconfined acoustic graphene plasmons in graphene–dielectric–metal structures can be used to probe the quantum surface-response functions of nearby metals, here encoded through the so-called Feibelman <jats:italic>d</jats:italic>-parameters. Based on our theoretical formalism, we introduce a concrete proposal for experimentally inferring the low-frequency quantum response of metals from quantum shifts of the acoustic graphene plasmons dispersion, and demonstrate that the high field confinement of acoustic graphene plasmons can resolve intrinsically quantum mechanical electronic length-scales with subnanometer resolution. Our findings reveal a promising scheme to probe the quantum response of metals, and further suggest the utilization of acoustic graphene plasmons as plasmon rulers with ångström-scale accuracy.</jats:p> 2022-05-02T14:20:11Z 2022-05-02T14:20:11Z 2021 2022-05-02T14:10:19Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142226 Gonçalves, PAD, Christensen, Thomas, Peres, Nuno MR, Jauho, Antti-Pekka, Epstein, Itai et al. 2021. "Quantum surface-response of metals revealed by acoustic graphene plasmons." Nature Communications, 12 (1). en 10.1038/S41467-021-23061-8 Nature Communications Creative Commons Attribution 4.0 International License https://creativecommons.org/licenses/by/4.0 application/pdf Springer Science and Business Media LLC Nature |
| spellingShingle | Gonçalves, PAD Christensen, Thomas Peres, Nuno MR Jauho, Antti-Pekka Epstein, Itai Koppens, Frank HL Soljačić, Marin Mortensen, N Asger Quantum surface-response of metals revealed by acoustic graphene plasmons |
| title | Quantum surface-response of metals revealed by acoustic graphene plasmons |
| title_full | Quantum surface-response of metals revealed by acoustic graphene plasmons |
| title_fullStr | Quantum surface-response of metals revealed by acoustic graphene plasmons |
| title_full_unstemmed | Quantum surface-response of metals revealed by acoustic graphene plasmons |
| title_short | Quantum surface-response of metals revealed by acoustic graphene plasmons |
| title_sort | quantum surface response of metals revealed by acoustic graphene plasmons |
| url | https://hdl.handle.net/1721.1/142226 |
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