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Chiral Metamaterials for THz Polarisation Control

CORDIS fornisce collegamenti ai risultati finali pubblici e alle pubblicazioni dei progetti ORIZZONTE.

I link ai risultati e alle pubblicazioni dei progetti del 7° PQ, così come i link ad alcuni tipi di risultati specifici come dataset e software, sono recuperati dinamicamente da .OpenAIRE .

Risultati finali

Report on the design of tunable chiral graphene- and CNT-based metasurfaces/polarizers. Recommendations to executors of WP3 (si apre in una nuova finestra)

Homemade packages based on the Finite Difference Time Domain (FDTD) method and commercial solvers such as CST and COMSOL will be used for full wave electromagnetic analysis of the transmission and reflection coefficients, the electromagnetic modes, and the spatial distribution of the electromagnetic radiation both inside and around the structure for metamaterials/metasurfaces based on metals, dielectrics, semiconductors, graphene/CNT, and combinations of them. We will study the equilibrium morphology, electronic structure and Raman spectra, of the interface between a graphene monolayer and different utilized in project dielectric and semiconducting substrates using non-empiric quantum chemical density functional theory (DFT) simulation in the cluster approximation. Modelling of EM properties of different configuration of graphene coupled with metasurface vs their microscopic characteristics will be performed via semi-empirical methods of the computational electromagnetics. Tubability of graphene conductivity as it is and electromagnetic constituent parameters of metasurface coupled with graphene will be analysed vs highlighting with IR laser pulses and biasing.

Exploitation plan (si apre in una nuova finestra)

The exploitation plans will be formulated for i providing adequate and effective protection of knowledge created in the project ii promotion of the exploitation of project results under consideration of the IPR of participants iii Implementation of their actions

Report of the characterization of the fabricated chiral metasurfaces. (si apre in una nuova finestra)

The morphology of the fabricated metasurfaces will be studied by using SEM and optical microscopy techniques to reveal the relationship between sensitivity of the helicity of the THz radiation and fabrications parameters. The morphology and local electronic properties of the graphene films deposited on the top of the metasurface will be studied in-situ by using STM and STS in order to verify the thickness of the films, their substrate coverage and presence of defects. In addition, ARPES will be employed for studing the bandstructure of the deposited graphene sheet. The polarization-sensitive reflection and transmission of the fabricated structures in the THz the frequency range from 100 GHz to 3 THz will be performed by time domain terahertz spectrometer (EKSPLA, Vilnius Lithuania) based on femtosecond laser (wavelength 1 μm, pulse duration less than 150 fs) and GaBiAs photoconductive switch as THz emitter and detector. The polarization sensitive transmittance will be measured by using the optical rectification and free-space electro-optic sampling with ZnTe crystals and two wire grid polarizers before and after the sample. As a reference of reflectivity measurement, an aluminum mirror is replaced in the same position as the sample.

Report on fabricated chiral metasurfaces by femtosecond micromachining and lithographic techniques; metasurfaces made on vertically aligned carbon nanotubes. Feedback to WP1 for design optimization. (si apre in una nuova finestra)

Single layer chiral metasurfaces will be fabricated by writing arrays of chiral “meta-atoms” on the surface or subsurface layer of the dielectric and semiconductor substrates. The multi-layer structures will be fabricated by layer-by-layer writing via changing the position of the focal plane withing the substrate. The enhancing the rotatory power of the measurface will be performed by rotating substrate thus forming Moire patterns. The lithographic techniques will be used for formation of the chiral arrays of metal nanoparticles on the surface. Arrays of GaN HMETS plasmonic resonators will be grown using MBE method.

Pubblicazioni

Recent advances in ultrafast laser nanostructuring of transparent materials

Autori: P.G. Kazansky, Y. Lei, H. Wang, S. Shevtsov, M. Shribak and Y. Svirko
Pubblicato in: Proceedings of the 9th International Workshop on Nanocarbon Photonics and Optoelectronics, 2024, Pagina/e 66, ISBN 978-952-61-5287-5
Editore: University of Eastern Finland

Terahertz detection with optically gated vertical graphene nanowalls

Autori: Petr A. Obraztsov, Vassilis Papadakis,Yuri Svirko, Alexander N. Obraztsov
Pubblicato in: Proceedings of the 9th international workshop on nanocarbon photonics and optoelectronics, 2024, Pagina/e 51, ISBN 978-952-61-5287-5
Editore: University of Eastern Finland

Optical properties and terahertz applications of one-dimensional nanocarbons

Autori: R. R. Hartmann and M. E. Portnoi
Pubblicato in: Proceedings of the 9th International Workshop ”Nanocarbon Photonics and Optoelectronics“, 2024, ISBN 978-952-61-5287-5
Editore: University of Eastern Finland

Strong and Broadband Pure Optical Activity in 3D Printed THz Chiral Metamaterials (si apre in una nuova finestra)

Autori: Ioannis Katsantonis, Maria Manousidaki, Anastasios D. Koulouklidis, Christina Daskalaki, Ioannis Spanos, Constantinos Kerantzopoulos, Anna C. Tasolamprou, Costas M. Soukoulis, Eleftherios N. Economou, Stelios Tzortzakis, Maria Farsari, Maria Kafesaki
Pubblicato in: Advanced Optical Materials, 2023, Pagina/e 2300238, ISSN 2195-1071
Editore: WILEY-V C H
DOI: 10.1002/adom.202300238

Active Control of Bound States in the Continuum in Toroidal Metasurfaces (si apre in una nuova finestra)

Autori: Fedor V. Kovalev, Andrey E. Miroshnichenko, Alexey A. Basharin, Hannes Toepfer, Ilya V. Shadrivov
Pubblicato in: Advanced Photonics Research, Numero 6, 2025, ISSN 2699-9293
Editore: Wiley
DOI: 10.1002/adpr.202400070

Carbon‐Coated Moth‐Eye Structure: An Ultrabroadband THz‐DUV Near‐Perfect Absorber (si apre in una nuova finestra)

Autori: Yuki Hakamada, Maria Cojocari, Mizuho Matoba, Shotaro Kawano, Haruyuki Sakurai, Kuniaki Konishi, Daniil Pashnev, Surya Revanth Ayyagari, Vytautas Janonis, Andrzej Urbanowicz, Saulius Tumėnas, Justinas Jorudas, Irmantas Kašalynas, Janna Pennanen, Adigun Deborah Amos, Aleksandr Saushin, Georgy Fedorov, Yuri Svirko, Polina Kuzhir
Pubblicato in: Advanced Optical Materials, 2025, Pagina/e 2500948, ISSN 2195-1071
Editore: Wiley
DOI: 10.1002/adom.202500948

Designer gapped and tilted Dirac cones in lateral graphene superlattices (si apre in una nuova finestra)

Autori: A. Wild, R. R. Hartmann, E. Mariani, M. E. Portnoi
Pubblicato in: APL Quantum, Numero 2, 2025, Pagina/e 026107, ISSN 2835-0103
Editore: AIP Publishing
DOI: 10.1063/5.0251887

Ultrafast Laser Writing in Different Types of Silica Glass (si apre in una nuova finestra)

Autori: Yuhao Lei, Huijun Wang, Linards Skuja, Bodo Kühn, Bernhard Franz, Yuri Svirko, Peter. G. Kazansky
Pubblicato in: Laser&Photonics Reviews, Numero 17(4), 2023, Pagina/e 202200978, ISSN 1863-8899
Editore: Wiley-VCH GmbH
DOI: 10.1002/lpor.202200978

Controlling ultrafast laser writing in silica glass by pulse temporal contrast (si apre in una nuova finestra)

Autori: Yuhao Lei, Huijun Wang, Gholamreza Shayeganrad, Yuri Svirko, Peter G. Kazansky
Pubblicato in: Optics Letters, Numero 49, 2024, Pagina/e 2385, ISSN 0146-9592
Editore: Optical Society of America
DOI: 10.1364/ol.522307

Programmable metasurfaces for future photonic artificial intelligence (si apre in una nuova finestra)

Autori: Loubnan Abou-Hamdan, Emil Marinov, Peter Wiecha, Philipp del Hougne, Tianyu Wang, Patrice Genevet
Pubblicato in: Nature Reviews Physics, Numero 7, 2025, Pagina/e 331-347, ISSN 2522-5820
Editore: Springer Science and Business Media LLC
DOI: 10.1038/s42254-025-00831-7

Grating Theory Approach to Optics of Nanocomposites (si apre in una nuova finestra)

Autori: Subhajit Bej, Toni Saastamoinen, Yuri P. Svirko, Jari Turunen
Pubblicato in: Materials, Numero 14/21, 2021, Pagina/e 6359, ISSN 1996-1944
Editore: MDPI Open Access Publishing
DOI: 10.3390/ma14216359

On the generalized Snell–Descartes laws, shock waves, water wakes, and Cherenkov radiation (si apre in una nuova finestra)

Autori: Patrice Genevet, Nate Wright, Jayden Johnson, Aloke Jana, Emil Marinov, Loubnan Abou-Hamdan
Pubblicato in: Nanophotonics, 2025, ISSN 2192-8606
Editore: Walter de Gruyter GmbH
DOI: 10.1515/nanoph-2024-0447

Selective superinvisibility effect via compound anapole (si apre in una nuova finestra)

Autori: Alexey A. Basharin; Esmaeel Zanganeh; Anar K. Ospanova; Polina Kapitanova; Andrey B. Evlyukhin
Pubblicato in: Physical Review B, Numero 107, 2023, Pagina/e 155104, ISSN 2469-9950
Editore: Amarican Physical Society
DOI: 10.1103/physrevb.107.155104

Bipolar electron waveguides in two-dimensional materials with tilted Dirac cones (si apre in una nuova finestra)

Autori: R.R. Hartmann, M.E. Portnoi
Pubblicato in: Physica Scripta, Numero Volume 99, Number 4, 2024, Pagina/e 045214, ISSN 0031-8949
Editore: Royal Swedish Academy of Sciences
DOI: 10.1088/1402-4896/ad2b34

Broadband transparency of Babinet complementary metamaterials. (si apre in una nuova finestra)

Autori: Ospanova, A. Cojocari, M. Lamberti, P. Plyushch, A. Matekovits, L. Svirko, Yu. Kuzhir, P. Basharin, A.
Pubblicato in: Applied physics letters, Numero 122 (23), 2023, Pagina/e 231702, ISSN 0003-6951
Editore: American Institute of Physics
DOI: 10.1063/5.0152841

Stark Effect Tunable Terahertz Transitions in Finite Carbon Chains (si apre in una nuova finestra)

Autori: Raymond A. Ng, Alexey Kucherik, Mikhail E. Portnoi, Richard R. Hartmann
Pubblicato in: Small Structures, 2025, ISSN 2688-4062
Editore: Wiley
DOI: 10.1002/sstr.202500266

Increasing Efficiency of Ultrafast Laser Writing Via Nonlocality of Light-Matter Interaction (si apre in una nuova finestra)

Autori: Huijun Wang, Yuhao Lei, Gholamreza Shayeganrad, Yuri Svirko, Peter G. Kazansky
Pubblicato in: Laser&Photonics Reviews, 2024, Pagina/e 2301143, ISSN 1863-8880
Editore: Wiley - VCH Verlag GmbH & CO. KGaA
DOI: 10.1002/lpor.202301143

3D-printed mirror-less helicity preserving metasurface “mirror” for THz applications (si apre in una nuova finestra)

Autori: Jiaruo Yan, Ioannis Katsantonis, Savvas Papamakarios, Panagiotis Konstantakis, Michael Loulakis, Thomas Koschny, Maria Farsari, Stelios Tzortzakis, Maria Kafesaki
Pubblicato in: Nanophotonics, 2025, Pagina/e 0711, ISSN 2192-8606
Editore: Walter de Gruyter GmbH
DOI: 10.1515/nanoph-2024-0711

Efficient ultrafast laser writing with elliptical polarization (si apre in una nuova finestra)

Autori: Yuhao Lei, Gholamreza Shayeganrad, Huijun Wang, Masaaki Sakakura, Yanhao Yu, Lei Wang, Dmitrii Kliukin & Peter G. Kazansky
Pubblicato in: Light: Science & Applications, Numero 12, 2023, Pagina/e 74, ISSN 2047-7538
Editore: SpringerNature
DOI: 10.1038/s41377-023-01098-2

Cactus-like Metamaterial Structures for Electromagnetically Induced Transparency at THz frequencies (si apre in una nuova finestra)

Autori: Savvas Papamakarios, Odysseas Tsilipakos, Ioannis Katsantonis, Anastasios D. Koulouklidis, Maria Manousidaki, Gordon Zyla, Christina Daskalaki, Stelios Tzortzakis, Maria Kafesaki, Maria Farsari
Pubblicato in: ACS Photonics, Numero 12, 2025, Pagina/e 87-97, ISSN 2330-4022
Editore: American Chemical Society
DOI: 10.1021/acsphotonics.4c01179

Giant enhancement of nonreciprocity in gyrotropic heterostructures (si apre in una nuova finestra)

Autori: I. Katsantonis, A. C. Tasolamprou, T. Koschny, E. N. Economou, M. Kafesaki and C. Valagiannopoulos
Pubblicato in: Advanced Optical Materials, Numero 13, 2023, Pagina/e 21986, ISSN 2045-2322
Editore: Nature Publishing Group
DOI: 10.1038/s41598-023-48503-9

The Surface Photogalvanic and Photon Drag Effects in Ag/Pd Metal-Semiconductor Nanocomposite (si apre in una nuova finestra)

Autori: Aleksandr S. Saushin, Gennady M. Mikheev, Viatcheslav V. Vanyukov, Yuri P. Svirko
Pubblicato in: Nanomaterials, Numero 11/11, 2021, Pagina/e 2827, ISSN 2079-4991
Editore: MDPI
DOI: 10.3390/nano11112827

Broadband transparency in terahertz free-standing anapole metasurface (si apre in una nuova finestra)

Autori: Isaac Appiah Otoo, Alexey Basharin, Grigorii Matveev, Georgy Fedorov, Petri Karvinen, Surya Revanth Ayyagari, Daniil Pashnev, Andrzej Urbanowicz, Justinas Jorudas, Irmantas Kašalynas, Yuri Svirko, Polina Kuzhir
Pubblicato in: Applied Physics Letters, Numero 125, 2024, Pagina/e 261701, ISSN 0003-6951
Editore: American Institute of Physics
DOI: 10.1063/5.0246993

Ultrathin, Dynamically Controllable Circularly Polarized Emission Laser Enabled by Resonant Chiral Metasurfaces (si apre in una nuova finestra)

Autori: Ioannis Katsantonis, Anna C. Tasolamprou, Eleftherios N. Economou, Thomas Koschny, Maria Kafesaki
Pubblicato in: ACS Photonics, Numero 12, 2025, Pagina/e 71-78, ISSN 2330-4022
Editore: American Chemical Society
DOI: 10.1021/acsphotonics.4c01005

Modified multipoles in photonics (si apre in una nuova finestra)

Autori: Ospanova, Anar; Cojocari, Maria, Basharin, Alexey
Pubblicato in: Physical Review B, Numero 107, 2023, Pagina/e 035156, ISSN 2469-9950
Editore: American Institute of Physics
DOI: 10.1103/physrevb.107.035156

Terahertz Absorber with Graphene Enhanced Polymer Hemispheres Array (si apre in una nuova finestra)

Autori: Alesia Paddubskaya, Nadzeya Valynets, Sergey Maksimenko, Mukesh Kumar, Marian Baah, Markku Pekkarinen, Yuri Svirko, Gintaras Valušis, Polina Kuzhir
Pubblicato in: Nanomaterials, Numero 11(10), 2021, Pagina/e 2494, ISSN 2079-4991
Editore: MDPI
DOI: 10.3390/nano11102494

Ultrafast exciton trapping dynamics in oxygen-functionalized single walled carbon nanotubes (si apre in una nuova finestra)

Autori: Timofei Eremina, Rakesh Dhamab, Humeyra Caglayan, Petr Obraztsov
Pubblicato in: Carbon, Numero 219, 2024, Pagina/e 118837, ISSN 1873-3891
Editore: Elsevier
DOI: 10.1016/j.carbon.2024.118837

Exciton dynamics in functionalized carbon nanotubes

Autori: Eremin, Timofei
Pubblicato in: PhD Thesis, 2024, ISBN 978-952-61-5369-8
Editore: University of Eastern Finland

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