Beam Steering Efficiency in Resonant Reflective Metasurfaces
Нема приказа
Аутори
Isić, GoranZografopoulos, Dimitrios C.
Stojanović, Danka
Vasić, Borislav Z.
Belić, Milivoj R.
Чланак у часопису (Објављена верзија)
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© IEEE
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Beam steering is one of the prevailing functions performed by electromagnetic metasurfaces. Its efficiency depends on a large number of physical parameters associated with resonant elements comprising the metasurface and is thus notoriously difficult to optimize. Here we formulate a theoretical model for evaluating the diffraction efficiency of an array of lossy resonant elements whose spectral response is dominated by the coupling between a leaky eigenmode and a single incoming/outgoing channel. We use it to deduce a formula for the maximum attainable diffraction efficiency and the gradient parameter profile for which it is achieved. The optimization procedure is demonstrated on the example of an electrically tunable liquid-crystal terahertz beam steering metasurface. Finally, the proposed model is benchmarked against rigorous metasurface simulations. © 1995-2012 IEEE.
Кључне речи:
Diffraction / Beam steering / Tuning / Resonators / Resonant frequency / Optimal control / Gradient metasurfaces / beam steering / temporal coupled-mode theory / tunable metamaterialsИзвор:
IEEE Journal of Selected Topics in Quantum Electronics, 2021, 27, 1, 9130831-Издавач:
- IEEE
Финансирање / пројекти:
- PV-Waals - Nanometer Thin Photovoltaics Based on Plasmonically Enhanced Van Der Waals Heterostructures (RS-6062710)
- Ministry of Education, Science and Technological Development of the Republic of Serbia
- Qatar National Research Fund (a member of the Qatar Foundation) [NPRP11S1126-170033]
- COST Action [CA16220]
DOI: 10.1109/JSTQE.2020.3006368
ISSN: 1077-260X
WoS: 000565627900001
Scopus: 2-s2.0-85087509277
Институција/група
VinčaTY - JOUR AU - Isić, Goran AU - Zografopoulos, Dimitrios C. AU - Stojanović, Danka AU - Vasić, Borislav Z. AU - Belić, Milivoj R. PY - 2021 UR - https://vinar.vin.bg.ac.rs/handle/123456789/9071 AB - Beam steering is one of the prevailing functions performed by electromagnetic metasurfaces. Its efficiency depends on a large number of physical parameters associated with resonant elements comprising the metasurface and is thus notoriously difficult to optimize. Here we formulate a theoretical model for evaluating the diffraction efficiency of an array of lossy resonant elements whose spectral response is dominated by the coupling between a leaky eigenmode and a single incoming/outgoing channel. We use it to deduce a formula for the maximum attainable diffraction efficiency and the gradient parameter profile for which it is achieved. The optimization procedure is demonstrated on the example of an electrically tunable liquid-crystal terahertz beam steering metasurface. Finally, the proposed model is benchmarked against rigorous metasurface simulations. © 1995-2012 IEEE. PB - IEEE T2 - IEEE Journal of Selected Topics in Quantum Electronics T1 - Beam Steering Efficiency in Resonant Reflective Metasurfaces VL - 27 IS - 1 SP - 9130831 DO - 10.1109/JSTQE.2020.3006368 ER -
@article{ author = "Isić, Goran and Zografopoulos, Dimitrios C. and Stojanović, Danka and Vasić, Borislav Z. and Belić, Milivoj R.", year = "2021", abstract = "Beam steering is one of the prevailing functions performed by electromagnetic metasurfaces. Its efficiency depends on a large number of physical parameters associated with resonant elements comprising the metasurface and is thus notoriously difficult to optimize. Here we formulate a theoretical model for evaluating the diffraction efficiency of an array of lossy resonant elements whose spectral response is dominated by the coupling between a leaky eigenmode and a single incoming/outgoing channel. We use it to deduce a formula for the maximum attainable diffraction efficiency and the gradient parameter profile for which it is achieved. The optimization procedure is demonstrated on the example of an electrically tunable liquid-crystal terahertz beam steering metasurface. Finally, the proposed model is benchmarked against rigorous metasurface simulations. © 1995-2012 IEEE.", publisher = "IEEE", journal = "IEEE Journal of Selected Topics in Quantum Electronics", title = "Beam Steering Efficiency in Resonant Reflective Metasurfaces", volume = "27", number = "1", pages = "9130831", doi = "10.1109/JSTQE.2020.3006368" }
Isić, G., Zografopoulos, D. C., Stojanović, D., Vasić, B. Z.,& Belić, M. R.. (2021). Beam Steering Efficiency in Resonant Reflective Metasurfaces. in IEEE Journal of Selected Topics in Quantum Electronics IEEE., 27(1), 9130831. https://doi.org/10.1109/JSTQE.2020.3006368
Isić G, Zografopoulos DC, Stojanović D, Vasić BZ, Belić MR. Beam Steering Efficiency in Resonant Reflective Metasurfaces. in IEEE Journal of Selected Topics in Quantum Electronics. 2021;27(1):9130831. doi:10.1109/JSTQE.2020.3006368 .
Isić, Goran, Zografopoulos, Dimitrios C., Stojanović, Danka, Vasić, Borislav Z., Belić, Milivoj R., "Beam Steering Efficiency in Resonant Reflective Metasurfaces" in IEEE Journal of Selected Topics in Quantum Electronics, 27, no. 1 (2021):9130831, https://doi.org/10.1109/JSTQE.2020.3006368 . .