For a long time, light manipulation at the nanoscale has been provided primarily with plasmonic materials. However, recent works show that the light can be controlled with dielectric particles. Here, we exploit the asymmetric shape of silicon nanopyramids to control the far-field scattering pattern and the electric field concentration inside the particles by simply changing the incident light polarization. This effect is considered both in air and lossless optical medium. For an explanation of the demonstrated features, we apply the multipole analysis of the scattering cross sections. We show that the electric and magnetic quadrupole resonances can be switched between them by changing the incident wave polarization providing changes of the scattering diagrams. We also show that the polarization control of the scattering properties of pyramidal nanoparticles strongly depends on the refractive index of the surrounding medium. The obtained results can be used for the development of optical antennas, switchers, and polarization filters composed of silicon materials.
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7 May 2019
Research Article|
May 03 2019
Polarization-dependent asymmetric light scattering by silicon nanopyramids and their multipoles resonances
Special Collection:
Dielectric Nanoresonators and Metamaterials
Pavel D. Terekhov
;
Pavel D. Terekhov
a)
1
Electrooptics and Photonics Engineering Department, Ben-Gurion University
, Beer-Sheva 8410501, Israel
2
ITMO University
, 49 Kronversky Ave., 197101, St. Petersburg, Russia
3
Ilse Katz Institute for Nanoscale Science & Technology, Ben-Gurion University
, Beer-Sheva 8410501, Israel
4
Center for Quantum Information Science and Technology, Ben-Gurion University
, Beer-Sheva 8410501, Israel
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Andrey B. Evlyukhin
;
Andrey B. Evlyukhin
2
ITMO University
, 49 Kronversky Ave., 197101, St. Petersburg, Russia
5
Institute of Quantum Optics, Leibniz Universität Hannover
, 30167 Hannover, Germany
6
Moscow Institute of Physics and Technology
, 9 Institutsky Lane, Dolgoprudny 141700, Russia
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Alexander S. Shalin;
Alexander S. Shalin
2
ITMO University
, 49 Kronversky Ave., 197101, St. Petersburg, Russia
7
Faculty of Physics and High Technology Engineering, Ulyanovsk State University
, Ulyanovsk 432017, Russia
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Alina Karabchevsky
Alina Karabchevsky
b)
1
Electrooptics and Photonics Engineering Department, Ben-Gurion University
, Beer-Sheva 8410501, Israel
3
Ilse Katz Institute for Nanoscale Science & Technology, Ben-Gurion University
, Beer-Sheva 8410501, Israel
4
Center for Quantum Information Science and Technology, Ben-Gurion University
, Beer-Sheva 8410501, Israel
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a)
Electronic mail: terekhovpd@gmail.com
b)
Electronic mail: alinak@bgu.ac.il
Note: This paper is part of the Special Topic on Dielectric Nanoresonators and Metamaterials.
J. Appl. Phys. 125, 173108 (2019)
Article history
Received:
February 27 2019
Accepted:
April 14 2019
Citation
Pavel D. Terekhov, Andrey B. Evlyukhin, Alexander S. Shalin, Alina Karabchevsky; Polarization-dependent asymmetric light scattering by silicon nanopyramids and their multipoles resonances. J. Appl. Phys. 7 May 2019; 125 (17): 173108. https://doi.org/10.1063/1.5094162
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