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Volume 14
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10.3390/ma14112865
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Article

Nonlocality-Enabled Magnetic Free Optical Isolation in Hyperbolic Metamaterials

by
Bartosz Janaszek
1,*,
Marcin Kieliszczyk
1 and
Paweł Szczepański
1,2
1
Institute of Microelectronics and Optoelectronics, Warsaw University of Technology, Koszykowa 75, 00-665 Warsaw, Poland
2
National Institute of Telecommunications, 1 Szachowa Str., 04-894 Warsaw, Poland
*
Author to whom correspondence should be addressed.
Materials 2021, 14(11), 2865; https://doi.org/10.3390/ma14112865
Submission received: 23 April 2021 / Revised: 20 May 2021 / Accepted: 24 May 2021 / Published: 27 May 2021
(This article belongs to the Special Issue Trends in Electronic and Optoelectronic Materials)
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Abstract

Hereby, we present an optical isolator (optical diode) based on a hyperbolic metamaterial (HMM). We demonstrate that a grating-free planar linear non-magnetic HMM structure deposited on a high-index substrate, which, due to presence of strong spatial dispersion (non-locality), reveals asymmetrical transmittance and reflectance characteristics for light of arbitrary polarization within a wide angular and spectral range. The presented device may be efficiently utilized to completely block backward and enforce unidirectional propagation in free space and integrated systems without the use of magnetooptical or non-linear effects.
Keywords: hyperbolic metamaterials; spatial dispersion; topological engineering hyperbolic metamaterials; spatial dispersion; topological engineering

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MDPI and ACS Style

Janaszek, B.; Kieliszczyk, M.; Szczepański, P. Nonlocality-Enabled Magnetic Free Optical Isolation in Hyperbolic Metamaterials. Materials 2021, 14, 2865. https://doi.org/10.3390/ma14112865

AMA Style

Janaszek B, Kieliszczyk M, Szczepański P. Nonlocality-Enabled Magnetic Free Optical Isolation in Hyperbolic Metamaterials. Materials. 2021; 14(11):2865. https://doi.org/10.3390/ma14112865

Chicago/Turabian Style

Janaszek, Bartosz, Marcin Kieliszczyk, and Paweł Szczepański. 2021. "Nonlocality-Enabled Magnetic Free Optical Isolation in Hyperbolic Metamaterials" Materials 14, no. 11: 2865. https://doi.org/10.3390/ma14112865

APA Style

Janaszek, B., Kieliszczyk, M., & Szczepański, P. (2021). Nonlocality-Enabled Magnetic Free Optical Isolation in Hyperbolic Metamaterials. Materials, 14(11), 2865. https://doi.org/10.3390/ma14112865

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