Studying localized surface plasmon resonances in the THz region for subwavelength spiral disks

V. V. Gerasimov; S. A. Kuznetsov; A. G. Lemzyakov; R. R. Hafizov

doi:10.1088/1742-6596/1461/1/012048

Studying localized surface plasmon resonances in the THz region for subwavelength spiral disks

V. V. Gerasimov, S. A. Kuznetsov, A. G. Lemzyakov, R. R. Hafizov

Research output: Contribution to journal › Conference article › peer-review

Abstract

Spoof localized surface plasmon resonances (LSPRs) in the THz range are promising for bio-sensing and spectroscopy. Using long spiral grooves allows improving the surface mode confinement of LSPRs in the long-wavelength region. Our numerical simulations of sub-wavelength spiral gold disks in the range of 0.04-6 THz have shown that in case of Drude conductivity and normal incidence of EM radiation only the first- and second-order dipole localized surface plasmon resonances (LSPRs) are excited. High order resonances arise at inclined incidence. The spectra and 2D distributions of the EM field at the resonant frequencies depend on the number of spiral arms and symmetry of the spiral structure.

Original language	English
Article number	012048
Number of pages	4
Journal	Journal of Physics: Conference Series
Volume	1461
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/1461/1/012048
Publication status	Published - 23 Apr 2020
Event	4th International Conference on Metamaterials and Nanophotonics, METANANO 2019 - St. Petersburg, Russian Federation Duration: 15 Jul 2019 → 19 Jul 2019

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title = "Studying localized surface plasmon resonances in the THz region for subwavelength spiral disks",

abstract = "Spoof localized surface plasmon resonances (LSPRs) in the THz range are promising for bio-sensing and spectroscopy. Using long spiral grooves allows improving the surface mode confinement of LSPRs in the long-wavelength region. Our numerical simulations of sub-wavelength spiral gold disks in the range of 0.04-6 THz have shown that in case of Drude conductivity and normal incidence of EM radiation only the first- and second-order dipole localized surface plasmon resonances (LSPRs) are excited. High order resonances arise at inclined incidence. The spectra and 2D distributions of the EM field at the resonant frequencies depend on the number of spiral arms and symmetry of the spiral structure.",

author = "Gerasimov, {V. V.} and Kuznetsov, {S. A.} and Lemzyakov, {A. G.} and Hafizov, {R. R.}",

year = "2020",

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doi = "10.1088/1742-6596/1461/1/012048",

language = "English",

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T1 - Studying localized surface plasmon resonances in the THz region for subwavelength spiral disks

AU - Gerasimov, V. V.

AU - Kuznetsov, S. A.

AU - Lemzyakov, A. G.

AU - Hafizov, R. R.

PY - 2020/4/23

Y1 - 2020/4/23

N2 - Spoof localized surface plasmon resonances (LSPRs) in the THz range are promising for bio-sensing and spectroscopy. Using long spiral grooves allows improving the surface mode confinement of LSPRs in the long-wavelength region. Our numerical simulations of sub-wavelength spiral gold disks in the range of 0.04-6 THz have shown that in case of Drude conductivity and normal incidence of EM radiation only the first- and second-order dipole localized surface plasmon resonances (LSPRs) are excited. High order resonances arise at inclined incidence. The spectra and 2D distributions of the EM field at the resonant frequencies depend on the number of spiral arms and symmetry of the spiral structure.

AB - Spoof localized surface plasmon resonances (LSPRs) in the THz range are promising for bio-sensing and spectroscopy. Using long spiral grooves allows improving the surface mode confinement of LSPRs in the long-wavelength region. Our numerical simulations of sub-wavelength spiral gold disks in the range of 0.04-6 THz have shown that in case of Drude conductivity and normal incidence of EM radiation only the first- and second-order dipole localized surface plasmon resonances (LSPRs) are excited. High order resonances arise at inclined incidence. The spectra and 2D distributions of the EM field at the resonant frequencies depend on the number of spiral arms and symmetry of the spiral structure.

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DO - 10.1088/1742-6596/1461/1/012048

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JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

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