Polarization Independent Unidirectional Scattering With Turnstile Nanoantennas

Year: 2020

Authors: Rocco D., Midrio M., De Angelis C.

Autors Affiliation: Univ Brescia, Dept Informat Engn, Via Branze 38, I-25123 Brescia, Italy; CNR INO, Natl Inst Opt, Via Branze 45, I-25123 Brescia, Italy; Univ Udine, CNIT, Via Sci 208, I-33100 Udine, Italy.

Abstract: We study the scattering behavior of a dielectric cross-dipole nanoantenna in the near-infrared spectral range when it is excited by a circular polarized plane wave. We theoretically demonstrate, for optimized geometrical parameters of the proposed turnstile structure, the possibility to simultaneously obtain a unidirectional scattering and a specific circular polarization of the scattered field. Our results open new functionalities for metamaterials and optical nanoantennas.

Journal/Review: IEEE PHOTONICS JOURNAL

Volume: 12 (6)      Pages from:   to:

More Information: This work was supported by PRIN NOMEN.
KeyWords: Polarization; Dielectrics; Optical polarization; Optical scattering; Dipole antennas; Magnetic resonance; Optical resonator; metamaterials
DOI: 10.1109/JPHOT.2020.3030306

Citations: 1
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