Anomalously large spectral shifts near the quantum tunnelling limit in plasmonic rulers with subatomic resolution

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Anomalously large spectral shifts near the quantum tunnelling limit in plasmonic rulers with subatomic resolution. / Readman, Charlie; De Nijs, Bart; Szabo, Istvan; Demetriadou, Angela; Greenhalgh, Ryan; Durkan, Colm; Rosta, Edina; Scherman, Oren A.; Baumberg, Jeremy J.

In: Nano Letters, Vol. 19, No. 3, 13.03.2019, p. 2051-2058.

Research output: Contribution to journalArticle

Harvard

Readman, C, De Nijs, B, Szabo, I, Demetriadou, A, Greenhalgh, R, Durkan, C, Rosta, E, Scherman, OA & Baumberg, JJ 2019, 'Anomalously large spectral shifts near the quantum tunnelling limit in plasmonic rulers with subatomic resolution', Nano Letters, vol. 19, no. 3, pp. 2051-2058. https://doi.org/10.1021/acs.nanolett.9b00199

APA

Readman, C., De Nijs, B., Szabo, I., Demetriadou, A., Greenhalgh, R., Durkan, C., Rosta, E., Scherman, O. A., & Baumberg, J. J. (2019). Anomalously large spectral shifts near the quantum tunnelling limit in plasmonic rulers with subatomic resolution. Nano Letters, 19(3), 2051-2058. https://doi.org/10.1021/acs.nanolett.9b00199

Vancouver

Author

Readman, Charlie ; De Nijs, Bart ; Szabo, Istvan ; Demetriadou, Angela ; Greenhalgh, Ryan ; Durkan, Colm ; Rosta, Edina ; Scherman, Oren A. ; Baumberg, Jeremy J. / Anomalously large spectral shifts near the quantum tunnelling limit in plasmonic rulers with subatomic resolution. In: Nano Letters. 2019 ; Vol. 19, No. 3. pp. 2051-2058.

Bibtex

@article{8f96714e4aac49bf91ea934c4699a177,
title = "Anomalously large spectral shifts near the quantum tunnelling limit in plasmonic rulers with subatomic resolution",
abstract = "The resonance wavelength of a coupled plasmonic system is extremely sensitive to the distance between its metallic surfaces, resulting in “plasmon rulers”. We explore this behavior in the subnanometer regime using self-assembled monolayers of bisphthalocyanine molecules in a nanoparticle-on-mirror (NPoM) construct. These allow unprecedented subangstrom control over spacer thickness via choice of metal center, in a gap-size regime at the quantum-mechanical limit of plasmonic enhancement. A dramatic shift in the coupled plasmon resonance is observed as the gap size is varied from 0.39 to 0.41 nm. Existing theoretical models are unable to account for the observed spectral tuning, which requires inclusion of the quantum-classical interface, emphasizing the need for new treatments of light at the subnanoscale",
keywords = "DFT, Nanocavities, SERS, nanoassembly, phthalocyanines, quantum plasmonics",
author = "Charlie Readman and {De Nijs}, Bart and Istvan Szabo and Angela Demetriadou and Ryan Greenhalgh and Colm Durkan and Edina Rosta and Scherman, {Oren A.} and Baumberg, {Jeremy J.}",
year = "2019",
month = mar
day = "13",
doi = "10.1021/acs.nanolett.9b00199",
language = "English",
volume = "19",
pages = "2051--2058",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "3",

}

RIS

TY - JOUR

T1 - Anomalously large spectral shifts near the quantum tunnelling limit in plasmonic rulers with subatomic resolution

AU - Readman, Charlie

AU - De Nijs, Bart

AU - Szabo, Istvan

AU - Demetriadou, Angela

AU - Greenhalgh, Ryan

AU - Durkan, Colm

AU - Rosta, Edina

AU - Scherman, Oren A.

AU - Baumberg, Jeremy J.

PY - 2019/3/13

Y1 - 2019/3/13

N2 - The resonance wavelength of a coupled plasmonic system is extremely sensitive to the distance between its metallic surfaces, resulting in “plasmon rulers”. We explore this behavior in the subnanometer regime using self-assembled monolayers of bisphthalocyanine molecules in a nanoparticle-on-mirror (NPoM) construct. These allow unprecedented subangstrom control over spacer thickness via choice of metal center, in a gap-size regime at the quantum-mechanical limit of plasmonic enhancement. A dramatic shift in the coupled plasmon resonance is observed as the gap size is varied from 0.39 to 0.41 nm. Existing theoretical models are unable to account for the observed spectral tuning, which requires inclusion of the quantum-classical interface, emphasizing the need for new treatments of light at the subnanoscale

AB - The resonance wavelength of a coupled plasmonic system is extremely sensitive to the distance between its metallic surfaces, resulting in “plasmon rulers”. We explore this behavior in the subnanometer regime using self-assembled monolayers of bisphthalocyanine molecules in a nanoparticle-on-mirror (NPoM) construct. These allow unprecedented subangstrom control over spacer thickness via choice of metal center, in a gap-size regime at the quantum-mechanical limit of plasmonic enhancement. A dramatic shift in the coupled plasmon resonance is observed as the gap size is varied from 0.39 to 0.41 nm. Existing theoretical models are unable to account for the observed spectral tuning, which requires inclusion of the quantum-classical interface, emphasizing the need for new treatments of light at the subnanoscale

KW - DFT

KW - Nanocavities

KW - SERS

KW - nanoassembly

KW - phthalocyanines

KW - quantum plasmonics

UR - http://www.scopus.com/inward/record.url?scp=85062359657&partnerID=8YFLogxK

U2 - 10.1021/acs.nanolett.9b00199

DO - 10.1021/acs.nanolett.9b00199

M3 - Article

VL - 19

SP - 2051

EP - 2058

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 3

ER -