Результаты исследований: Научные публикации в периодических изданиях › статья по материалам конференции › Рецензирование
Infrared localized surface plasmon dark multipole modes generated on subwavelength corrugated metal disks. / Bulgakova, V. V.; Gerasimov, V. V.; Hafizov, R. R. и др.
в: Journal of Physics: Conference Series, Том 1461, № 1, 012047, 01.03.2020.Результаты исследований: Научные публикации в периодических изданиях › статья по материалам конференции › Рецензирование
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TY - JOUR
T1 - Infrared localized surface plasmon dark multipole modes generated on subwavelength corrugated metal disks
AU - Bulgakova, V. V.
AU - Gerasimov, V. V.
AU - Hafizov, R. R.
AU - Lemzyakov, A. G.
PY - 2020/3/1
Y1 - 2020/3/1
N2 - Terahertz (THz) radiation is very promising for chemical and biological sensing. One of the ways to realize a THz sensor is exciting multipole localized surface plasmon resonances (LSPRs) on subwavelength corrugated metal disks. In this paper, numerical modeling and analysis of LSPRs on a periodic array of such structures were made. At normal incidence of the incoming wave, only dipole resonances can be excited. An additional C-shaped resonator placed in the vicinity of the disk produces dark multipole modes (quadrupole, hexapole, octupole, and decapole ones) due to hybridization of these modes with the brigth dipole mode of the C resonator. Besides, multipole modes can be excited at oblique illumination of the structure. With increase in the incident angle, the multipole resonances become stronger. The high Q-factor resonance modes observed for PEC disks are wider or disappeared in case of Drude gold permittivity.
AB - Terahertz (THz) radiation is very promising for chemical and biological sensing. One of the ways to realize a THz sensor is exciting multipole localized surface plasmon resonances (LSPRs) on subwavelength corrugated metal disks. In this paper, numerical modeling and analysis of LSPRs on a periodic array of such structures were made. At normal incidence of the incoming wave, only dipole resonances can be excited. An additional C-shaped resonator placed in the vicinity of the disk produces dark multipole modes (quadrupole, hexapole, octupole, and decapole ones) due to hybridization of these modes with the brigth dipole mode of the C resonator. Besides, multipole modes can be excited at oblique illumination of the structure. With increase in the incident angle, the multipole resonances become stronger. The high Q-factor resonance modes observed for PEC disks are wider or disappeared in case of Drude gold permittivity.
UR - http://www.scopus.com/inward/record.url?scp=85084142709&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1461/1/012047
DO - 10.1088/1742-6596/1461/1/012047
M3 - Conference article
AN - SCOPUS:85084142709
VL - 1461
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012047
T2 - 4th International Conference on Metamaterials and Nanophotonics, METANANO 2019
Y2 - 15 July 2019 through 19 July 2019
ER -
ID: 24229626