| 4. | Aleksey Girich, Liubov Ivzhenko, Ganna Kharchenko, Sergey Polevoy, Sergey Tarapov, Maciej Krawczyk, Jarosław W. Kłos Existence of edge modes in periodic microstrip transmission line Scientific Reports, 14 (1), pp. 16477, 2024, ISSN: 2045-2322. Abstract | Links | BibTeX @article{girich_existence_2024,
title = {Existence of edge modes in periodic microstrip transmission line},
author = {Aleksey Girich and Liubov Ivzhenko and Ganna Kharchenko and Sergey Polevoy and Sergey Tarapov and Maciej Krawczyk and Jarosław W. Kłos},
url = {https://www.nature.com/articles/s41598-024-67610-9},
doi = {10.1038/s41598-024-67610-9},
issn = {2045-2322},
year = {2024},
date = {2024-07-16},
urldate = {2024-07-17},
journal = {Scientific Reports},
volume = {14},
number = {1},
pages = {16477},
abstract = {The microstrip of modulated width is a realization of a one-dimensional photonic crystal operating in the microwave regime. Like any photonic crystal, the periodic microstrip is characterised by the presence of frequency bands and band gaps that enable and prohibit wave propagation, respectively. The frequency bands for microstrip of the symmetric unit cell can be distinguished by 0 or pi Zak phase. The sum of these topological parameters for all bands below a given frequency gap determines the value of the surface impedance at the end of the microstrip. We demonstrate that edge modes are absent in a finite microstrip terminated at both ends in the centres of unit cells, but they can be induced by adding the defected cells. Edge modes present at both ends of the microstrip enable microwave tunneling with high transitivity in the frequency gap with or without a change in phase. This has been demonstrated experimentally and developed in detail using numerical simulations and model calculations. The investigated system, with a doublet of edge modes in the frequency gap, can be considered as a narrow passband filter of high selectivity and characterised by a significant group delay.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The microstrip of modulated width is a realization of a one-dimensional photonic crystal operating in the microwave regime. Like any photonic crystal, the periodic microstrip is characterised by the presence of frequency bands and band gaps that enable and prohibit wave propagation, respectively. The frequency bands for microstrip of the symmetric unit cell can be distinguished by 0 or pi Zak phase. The sum of these topological parameters for all bands below a given frequency gap determines the value of the surface impedance at the end of the microstrip. We demonstrate that edge modes are absent in a finite microstrip terminated at both ends in the centres of unit cells, but they can be induced by adding the defected cells. Edge modes present at both ends of the microstrip enable microwave tunneling with high transitivity in the frequency gap with or without a change in phase. This has been demonstrated experimentally and developed in detail using numerical simulations and model calculations. The investigated system, with a doublet of edge modes in the frequency gap, can be considered as a narrow passband filter of high selectivity and characterised by a significant group delay. |
| 3. | Liubov Ivzhenko, Aleksey Girich, Artem Hrinchenko, Oleh Yermakov Mechanically Tunable Topological Transition and High-Directional Propagation of Surface Waves at Bilayer Hyperbolic Metasurfaces 2022 IEEE 2nd Ukrainian Microwave Week (UkrMW), pp. 214-217, 2023. Abstract | Links | BibTeX @inproceedings{10037146,
title = {Mechanically Tunable Topological Transition and High-Directional Propagation of Surface Waves at Bilayer Hyperbolic Metasurfaces},
author = {Liubov Ivzhenko and Aleksey Girich and Artem Hrinchenko and Oleh Yermakov},
doi = {10.1109/UkrMW58013.2022.10037146},
year = {2023},
date = {2023-02-13},
booktitle = {2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)},
pages = {214-217},
abstract = {We propose simple and efficient way to control the propagation regime and direction of spoof surface plasmon-polaritons localized at bilayer hyperbolic metasurfaces. We demonstrate the photonic topological transition at the same frequency implemented with a mutual rotation of the metasurface layers. Finally, we show the tunable multidirectional in-plane canalization of surface waves adjusting by the interlayer coupling. These results discover new opportunities for the manipulation over surface waves at metasurfaces.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
We propose simple and efficient way to control the propagation regime and direction of spoof surface plasmon-polaritons localized at bilayer hyperbolic metasurfaces. We demonstrate the photonic topological transition at the same frequency implemented with a mutual rotation of the metasurface layers. Finally, we show the tunable multidirectional in-plane canalization of surface waves adjusting by the interlayer coupling. These results discover new opportunities for the manipulation over surface waves at metasurfaces. |
| 2. | Sergey Polevoy, Ganna Kharchenko, Tetiana Kalmykova, Yevhenii Ostryzhnyi, Liubov Ivzhenko, Oleh Yermakov Polarization-Controlled Excitation of Surface Waves at Self-Complementary Metasurface 2022 IEEE 2nd Ukrainian Microwave Week (UkrMW), pp. 222-225, 2023. Abstract | Links | BibTeX @inproceedings{10036966,
title = {Polarization-Controlled Excitation of Surface Waves at Self-Complementary Metasurface},
author = {Sergey Polevoy and Ganna Kharchenko and Tetiana Kalmykova and Yevhenii Ostryzhnyi and Liubov Ivzhenko and Oleh Yermakov},
doi = {10.1109/UkrMW58013.2022.10036966},
year = {2023},
date = {2023-02-13},
booktitle = {2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)},
pages = {222-225},
abstract = {In this work, we study the surface electromagnetic waves propagating along the self-complementary metasurface. We propose a way to excite the surface waves of the necessary polarization by using the TE-TM degeneracy property of the self-complementary metasurface. In particular, we demonstrate the excitation of surface waves with linear horizontal, vertical and diagonal as well as circular polarizations. The proposed technique opens new possibilities for the in-plane signal transferring and transformation.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
In this work, we study the surface electromagnetic waves propagating along the self-complementary metasurface. We propose a way to excite the surface waves of the necessary polarization by using the TE-TM degeneracy property of the self-complementary metasurface. In particular, we demonstrate the excitation of surface waves with linear horizontal, vertical and diagonal as well as circular polarizations. The proposed technique opens new possibilities for the in-plane signal transferring and transformation. |
| 1. | Aleksey Girich, Liubov Ivzhenko, Artem Hrinchenko, Sergey Tarapov, Oleh Yermakov Manipulation Over Surface Waves in Bilayer Hyperbolic Metasurfaces: Topological Transition and Multidirectional Canalization IEEE Microwave and Wireless Components Letters, pp. 1-4, 2022. Abstract | Links | BibTeX @article{9931333,
title = {Manipulation Over Surface Waves in Bilayer Hyperbolic Metasurfaces: Topological Transition and Multidirectional Canalization},
author = {Aleksey Girich and Liubov Ivzhenko and Artem Hrinchenko and Sergey Tarapov and Oleh Yermakov},
doi = {10.1109/LMWC.2022.3215016},
year = {2022},
date = {2022-10-27},
journal = {IEEE Microwave and Wireless Components Letters},
pages = {1-4},
abstract = {Spoof surface plasmon-polariton is a type of surface wave (SW) propagating at the artificially engineered structures in microwave and terahertz ranges. These SWs are highly important in planar photonic and on-chip devices, integrated circuits, lenses, sensors, and antennas applications. However, it is still a challenge to control the propagation regime of such SWs including the wavefront shapes and propagation directions. In this letter, we study the SWs in bilayer hyperbolic metasurfaces and show that the interplay between two layers allows them to manage their regime of propagation. We demonstrate the switching between the angle and number of propagation directions of SWs at the same frequency. Finally, we demonstrate experimentally the tunable multidirectional in-plane canalization of SWs by adjusting the directions of their propagation within the angular range from 0 to 12.8 deg. The discovered rotation-mediated interlayer coupling of hyperbolic metasurfaces paves the way toward efficient in-plane transfer of localized electromagnetic signals.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Spoof surface plasmon-polariton is a type of surface wave (SW) propagating at the artificially engineered structures in microwave and terahertz ranges. These SWs are highly important in planar photonic and on-chip devices, integrated circuits, lenses, sensors, and antennas applications. However, it is still a challenge to control the propagation regime of such SWs including the wavefront shapes and propagation directions. In this letter, we study the SWs in bilayer hyperbolic metasurfaces and show that the interplay between two layers allows them to manage their regime of propagation. We demonstrate the switching between the angle and number of propagation directions of SWs at the same frequency. Finally, we demonstrate experimentally the tunable multidirectional in-plane canalization of SWs by adjusting the directions of their propagation within the angular range from 0 to 12.8 deg. The discovered rotation-mediated interlayer coupling of hyperbolic metasurfaces paves the way toward efficient in-plane transfer of localized electromagnetic signals. |
