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Lattice Rayleigh Anomaly Associated Enhancement of NH and CH Stretching Modes on Gold Metasurfaces for Overtone Detection

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Lattice Rayleigh Anomaly Associated Enhancement of NH and CH Stretching Modes on Gold Metasurfaces for Overtone Detection. / Dadadzhanov, Daler R.; Vartanyan, Tigran A.; Karabchevsky, Alina.
In: Nanomaterials, Vol. 10, No. 7, 1265, 31.07.2020, p. 1-13.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Dadadzhanov, DR, Vartanyan, TA & Karabchevsky, A 2020, 'Lattice Rayleigh Anomaly Associated Enhancement of NH and CH Stretching Modes on Gold Metasurfaces for Overtone Detection', Nanomaterials, vol. 10, no. 7, 1265, pp. 1-13. https://doi.org/10.3390/nano10071265

APA

Dadadzhanov, D. R., Vartanyan, T. A., & Karabchevsky, A. (2020). Lattice Rayleigh Anomaly Associated Enhancement of NH and CH Stretching Modes on Gold Metasurfaces for Overtone Detection. Nanomaterials, 10(7), 1-13. Article 1265. https://doi.org/10.3390/nano10071265

Vancouver

Dadadzhanov DR, Vartanyan TA, Karabchevsky A. Lattice Rayleigh Anomaly Associated Enhancement of NH and CH Stretching Modes on Gold Metasurfaces for Overtone Detection. Nanomaterials. 2020 Jul 31;10(7):1-13. 1265. Epub 2020 Jun 29. doi: 10.3390/nano10071265

Author

Dadadzhanov, Daler R. ; Vartanyan, Tigran A. ; Karabchevsky, Alina. / Lattice Rayleigh Anomaly Associated Enhancement of NH and CH Stretching Modes on Gold Metasurfaces for Overtone Detection. In: Nanomaterials. 2020 ; Vol. 10, No. 7. pp. 1-13.

Bibtex

@article{81b7af53d2fe42f78d1c3a09ddfdfdf6,
title = "Lattice Rayleigh Anomaly Associated Enhancement of NH and CH Stretching Modes on Gold Metasurfaces for Overtone Detection",
abstract = "Molecular overtones stretching modes that occupy the near-infrared (NIR) are weak compared to the fundamental vibrations. Here we report on the enhancement of absorption by molecular vibrations overtones via electromagnetic field enhancement of plasmonic nanoparallelepipeds comprising a square lattice. We explore numerically, using finite element method (FEM), gold metasurfaces on a transparent dielectric substrate covered by weakly absorbing analyte supporting N-H and C-H overtone absorption bands around 1.5 μ m and around 1.67 μ m, respectively. We found that the absorption enhancement in N-H overtone transition can be increased up to the factor of 22.5 due to the combination of localized surface plasmon resonance in prolonged nanoparticles and lattice Rayleigh anomaly. Our approach may be extended for sensitive identification of other functional group overtone transitions in the near-infrared spectral range.",
keywords = "Localized surface plasmon resonance, Metasurface, Overtone spectroscopy, Surface-enhanced near-infrared absorption",
author = "Dadadzhanov, {Daler R.} and Vartanyan, {Tigran A.} and Alina Karabchevsky",
year = "2020",
month = jul,
day = "31",
doi = "10.3390/nano10071265",
language = "English",
volume = "10",
pages = "1--13",
journal = "Nanomaterials",
issn = "2079-4991",
publisher = "MDPI AG",
number = "7",

}

RIS

TY - JOUR

T1 - Lattice Rayleigh Anomaly Associated Enhancement of NH and CH Stretching Modes on Gold Metasurfaces for Overtone Detection

AU - Dadadzhanov, Daler R.

AU - Vartanyan, Tigran A.

AU - Karabchevsky, Alina

PY - 2020/7/31

Y1 - 2020/7/31

N2 - Molecular overtones stretching modes that occupy the near-infrared (NIR) are weak compared to the fundamental vibrations. Here we report on the enhancement of absorption by molecular vibrations overtones via electromagnetic field enhancement of plasmonic nanoparallelepipeds comprising a square lattice. We explore numerically, using finite element method (FEM), gold metasurfaces on a transparent dielectric substrate covered by weakly absorbing analyte supporting N-H and C-H overtone absorption bands around 1.5 μ m and around 1.67 μ m, respectively. We found that the absorption enhancement in N-H overtone transition can be increased up to the factor of 22.5 due to the combination of localized surface plasmon resonance in prolonged nanoparticles and lattice Rayleigh anomaly. Our approach may be extended for sensitive identification of other functional group overtone transitions in the near-infrared spectral range.

AB - Molecular overtones stretching modes that occupy the near-infrared (NIR) are weak compared to the fundamental vibrations. Here we report on the enhancement of absorption by molecular vibrations overtones via electromagnetic field enhancement of plasmonic nanoparallelepipeds comprising a square lattice. We explore numerically, using finite element method (FEM), gold metasurfaces on a transparent dielectric substrate covered by weakly absorbing analyte supporting N-H and C-H overtone absorption bands around 1.5 μ m and around 1.67 μ m, respectively. We found that the absorption enhancement in N-H overtone transition can be increased up to the factor of 22.5 due to the combination of localized surface plasmon resonance in prolonged nanoparticles and lattice Rayleigh anomaly. Our approach may be extended for sensitive identification of other functional group overtone transitions in the near-infrared spectral range.

KW - Localized surface plasmon resonance

KW - Metasurface

KW - Overtone spectroscopy

KW - Surface-enhanced near-infrared absorption

U2 - 10.3390/nano10071265

DO - 10.3390/nano10071265

M3 - Journal article

C2 - 32610447

VL - 10

SP - 1

EP - 13

JO - Nanomaterials

JF - Nanomaterials

SN - 2079-4991

IS - 7

M1 - 1265

ER -