TY - JOUR
T1 - Lattice resonances in transdimensional WS2 nanoantenna arrays
AU - Babicheva, Viktoriia E.
AU - Moloney, Jerome V.
N1 - Funding Information:
This material is based upon work supported by the Air Force Office of Scientific Research under Grant No. FA9550-19-1-0032.
Funding Information:
Acknowledgments: This material is based upon work supported by the Air Force Office of Scientific Research under Grant No. FA9550-19-1-0032.
Publisher Copyright:
© 2019 by the authors.
PY - 2019/5/1
Y1 - 2019/5/1
N2 - Mie resonances in high-refractive-index nanoparticles have been known for a long time but only recently have they became actively explored for control of light in nanostructures, ultra-thin optical components, and metasurfaces. Silicon nanoparticles have been widely studied mainly because of well-established fabrication technology, and other high-index materials remain overlooked. Transition metal dichalcogenides, such as tungsten or molybdenum disulfides and diselenides, are known as van der Waals materials because of the type of force holding material layers together. Transition metal dichalcogenides possess large permittivity values in visible and infrared spectral ranges and, being patterned, can support well-defined Mie resonances. In this Communication, we show that a periodic array of tungsten disulfide (WS2) nanoantennae can be considered to be transdimensional lattice and supports different multipole resonances, which can be controlled by the lattice period. We show that lattice resonances are excited in the proximity to Rayleigh anomaly and have different spectral changes in response to variations of one or another orthogonal period. WS2 nanoantennae, their clusters, oligomers, and periodic array have the potential to be used in future nanophotonic devices with efficient light control at the nanoscale.
AB - Mie resonances in high-refractive-index nanoparticles have been known for a long time but only recently have they became actively explored for control of light in nanostructures, ultra-thin optical components, and metasurfaces. Silicon nanoparticles have been widely studied mainly because of well-established fabrication technology, and other high-index materials remain overlooked. Transition metal dichalcogenides, such as tungsten or molybdenum disulfides and diselenides, are known as van der Waals materials because of the type of force holding material layers together. Transition metal dichalcogenides possess large permittivity values in visible and infrared spectral ranges and, being patterned, can support well-defined Mie resonances. In this Communication, we show that a periodic array of tungsten disulfide (WS2) nanoantennae can be considered to be transdimensional lattice and supports different multipole resonances, which can be controlled by the lattice period. We show that lattice resonances are excited in the proximity to Rayleigh anomaly and have different spectral changes in response to variations of one or another orthogonal period. WS2 nanoantennae, their clusters, oligomers, and periodic array have the potential to be used in future nanophotonic devices with efficient light control at the nanoscale.
KW - Collective effects
KW - Mie resonances
KW - Multipole resonances
KW - Nanomaterials
KW - Transdimensional lattices
KW - Transition metal dichalcogenides
KW - Two-dimensional materials
KW - Van der Waals materials
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U2 - 10.3390/app9102005
DO - 10.3390/app9102005
M3 - Article
AN - SCOPUS:85066490697
SN - 2076-3417
VL - 9
JO - Applied Sciences (Switzerland)
JF - Applied Sciences (Switzerland)
IS - 10
M1 - 2005
ER -