Abstract
We report on the fabrication of few-atomic-layer-thick wafer-scale crystalline silver films, along with the observation of plasmons in the near-to-mid infrared spectral regions upon lithographic structuring. Our measured optical spectra reveal narrow plasmons (quality factor ∼ 4), further supported by a low sheet resistance comparable to bulk metal in few-atomic-layer silver films down to 7 Ag(111) monolayers. Good crystal quality and plasmon narrowness are obtained despite the addition of a thin passivating dielectric, which renders our samples resilient to ambient conditions.
Original language | English |
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Title of host publication | 21st International Conference on Transparent Optical Networks, ICTON 2019 |
Publisher | IEEE Computer Society |
ISBN (Electronic) | 9781728127798 |
DOIs | |
State | Published - Jul 2019 |
Event | 21st International Conference on Transparent Optical Networks, ICTON 2019 - Angers, France Duration: 9 Jul 2019 → 13 Jul 2019 |
Publication series
Name | International Conference on Transparent Optical Networks |
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Volume | 2019-July |
ISSN (Electronic) | 2162-7339 |
Conference
Conference | 21st International Conference on Transparent Optical Networks, ICTON 2019 |
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Country/Territory | France |
City | Angers |
Period | 9/07/19 → 13/07/19 |
Bibliographical note
Publisher Copyright:© 2019 IEEE.
Funding
We thank Ralph Gay, Luis Hueso, Johan Osmond, Marta Autore, and Rainer Hillenbrand for technical support and helpful discussions. This work has been supported in part by the Spanish MINECO (MAT2017-88492-R, SEV2015-0522, and PCIN-2015-155, and MAT2016–78293-C6–6-R), ERC (Advanced Grant 789104-eNANO), the Catalan CERCA Program, the Basque Government (IT-621–13), Fundació Privada Cellex, and the US National Science Foundation CAREER Award (1552461).
Funders | Funder number |
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National Science Foundation | 1552461 |
Fundación Cellex | |
European Commission | 789104-eNANO |
Eusko Jaurlaritza | IT-621–13 |
Ministerio de Economía y Competitividad | MAT2017-88492-R, MAT2016–78293-C6–6-R, PCIN-2015-155, SEV2015-0522 |
Keywords
- 2D materials
- 2D plasmonics
- Atomically thin silver
- Crystalline metal films
- Ultrathin plasmonics