Article
Multidisciplinary Sciences
Sukhvinder Kaur, Subhajit Karmakar, Arun Jana, Shreeya Rane, Ravendra Kumar Varshney, Dibakar Roy Chowdhury
Summary: The control and manipulation of cavity resonances can be achieved through modifying the split ring resonator geometry in hybrid plasmonic metasurface, leading to the excitation of dual resonance peaks with high quality factor and multi-band resonances.
Article
Nanoscience & Nanotechnology
Carlo Rizza, Giuseppe Castaldi, Vincenzo Galdi
Summary: Nonlocal effects induced by spatial nonlocality in temporal metamaterials are investigated. The study reveals peculiar nonlocal effects in periodic temporal modulation and temporal boundary scenarios, and highlights the similarities and differences compared to spatial metamaterial counterparts. Additionally, a configuration is identified where a temporal metamaterial can perform the first-order derivative of an incident wavepacket. The theoretical results provide key physical ingredients for the development of novel applications.
Article
Chemistry, Multidisciplinary
Anatoliy V. V. Goncharenko, Vyacheslav M. M. Silkin
Summary: Efficient simulation methods for nonlocal effects in nanostructures have been developed. This study introduces a simple and accurate simulation modeling technique based on the transfer-matrix method to compute higher-order nonlocal corrections in 1D plasmonic periodic nanostructures. The results provide a framework for guiding experiments and designing metamaterials.
Article
Multidisciplinary Sciences
Bo Xiong, Yu Liu, Yihao Xu, Lin Deng, Chao-Wei Chen, Jia-Nan Wang, Ruwen Peng, Yun Lai, Yongmin Liu, Mu Wang
Summary: By introducing engineered noise to the precise solution of Jones matrix elements, we have surpassed the fundamental limit of polarization multiplexing capacity of metasurfaces. Through experiments, we have achieved up to 11 independent holographic images using a single metasurface illuminated by visible light with different polarizations, which is the highest reported capacity for polarization multiplexing. With the combination of position multiplexing, the metasurface is capable of generating 36 distinct images, forming a holographic keyboard pattern. This discovery opens up new possibilities for high-capacity optical display, information encryption, and data storage.
Article
Quantum Science & Technology
Xue-Yun Bai, Xue-Min Bai, Ni Liu, Jun-Qi Li, J. -Q. Liang
Summary: In this study, we investigated the dynamics of measurement-induced nonlocality (MIN) in an ideal optical cavity with two spins. Two-spin entangled states were generated under certain assumptions and the time evolution of MIN was examined based on derived analytical expressions. Results showed that MIN remains constant and independent of average photon number for spins initially in a singlet state, while strongly depends on photon number and initial angle parameters for other initial spin states. Detailed analysis of MIN dynamics was provided through numerical calculations, revealing significant outcomes.
QUANTUM INFORMATION PROCESSING
(2021)
Article
Chemistry, Physical
Javier Bonet-Aleta, Jose I. Garcia-Peiro, Jose L. Hueso
Summary: The present review discusses recent advances in the development of photocatalysts for cancer therapy applications, particularly focusing on engineering aspects of different nanomaterials and correlating their structural and optical properties with photocatalytic capability. The review also highlights alternatives to organic photosensitizers in photodynamic therapy and current efforts in other photocatalytic strategies for cancer treatment.
Article
Materials Science, Multidisciplinary
Robin Lingstaedt, Nahid Talebi, Mario Hentschel, Soudabeh Mashhadi, Bruno Gompf, Marko Burghard, Harald Giessen, Peter A. van Aken
Summary: This study investigates the hyperbolic optical properties of Bi2Se3 material, demonstrating the support for exciton polaritons. The research compares the behavior of polaritons propagating along edges in pristine and artificially structured conditions, confirming the ability to control the direction of edge polariton propagation through structural manipulation.
COMMUNICATIONS MATERIALS
(2021)
Article
Physics, Multidisciplinary
Jiajie Guo, Jordi Tura, Qiongyi He, Matteo Fadel
Summary: We propose an extension to the toolbox for studying Bell correlations in multipartite systems by introducing permutationally invariant Bell inequalities (PIBIs) involving few-body correlators. We present a variety of PIBIs with 3-4 body correlators that can be applied to any number of particles, which exhibit higher noise robustness compared to known inequalities and can detect Bell correlations in highly non-Gaussian spin states. We also focus on finding experimentally feasible PIBIs that require collective spin measurements along only a few directions, formulating the search problem as a semidefinite program.
PHYSICAL REVIEW LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Lina Grineviciute, Ceren Babayigit, Darius Gailevicius, Martynas Peckus, Mirbek Turduev, Tomas Tolenis, Mikas Vengris, Hamza Kurt, Kestutis Staliunas
Summary: A novel mechanism of spatial filtering in the near-field domain is proposed and demonstrated in this study, using a nanostructured multilayer coating. This new approach offers a more compact and efficient spatial filtering solution for microlasers. The proposed photonic structure shows promise as an ideal component for intracavity spatial filtering.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Physical
Grzegorz Stepniewski, Pascal Hanzi, Adam Filipkowski, Monika Janik, Mariusz Mrozek, Yuriy Stepanenko, Robert Bogdanowicz, Valerio Romano, Alexander Heidt, Ryszard Buczynski, Mariusz Klimczak
Summary: The integration of nanodiamonds with optical fibers has been shown to be a compelling methodology for magneto-optics. This study reveals that nanodiamonds can be utilized for nonlinear optics by manipulating the nonlinear response of glasses. The experiments demonstrate a reduction in the nonlinear refractive index of materials containing nanodiamonds, providing a guideline for future research on negative nonlinearity fibers.
Article
Chemistry, Multidisciplinary
Angelica Niazov-Elkan, Margarita Shepelenko, Lotem Alus, Miri Kazes, Lothar Houben, Katya Rechav, Gregory Leitus, Anna Kossoy, Yishay Feldman, Leeor Kronik, Peter G. Vekilov, Dan Oron
Summary: A facile procedure is presented to deposit bio-inspired birefringent crystals of xanthine derivatives on a template of single-crystal quartz. The crystal sheets obtained have well-defined orientation and high optical anisotropy, and can be used to fabricate polarization-dependent optical devices.
ADVANCED MATERIALS
(2023)
Article
Physics, Particles & Fields
Li-Juan Li, Fei Ming, Xue-Ke Song, Liu Ye, Dong Wang
Summary: In this study, we explore the tripartite entropic uncertainty and genuine tripartite quantumness of Dirac fields in the background of the Garfinkle-Horowitz-Strominger (GHS) dilation space-time. We find that Hawking radiation leads to the decay of quantum nonlocality while preserving total coherence. Moreover, there is an intrinsic trade-off relationship between the coherences of physically accessible and inaccessible regions. Additionally, we examine the effect of Hawking radiation on entropy-based measured uncertainty and observe that stronger Hawking radiation increases uncertainty in physically accessible regions while decreasing it in physically inaccessible regions.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Review
Materials Science, Multidisciplinary
Emilija Petronijevic, Alessandro Belardini, Grigore Leahu, Roberto Li Voti, Concita Sibilia
Summary: This work reviews the recent attempts to enhance chiro-optical effects at the nanoscale using nanostructured materials. The paper covers numerical design, different geometries exhibiting circular dichroic behavior, near-field chirality, nanofabrication methods, and chiro-optical experiments. The authors believe that modern nanofabrication and characterization techniques have reached a stage where chiro-optical sensors and light components based on nanostructures can be developed.
OPTICAL MATERIALS EXPRESS
(2022)
Article
Materials Science, Multidisciplinary
Chenyan Wang, Zacharias Vangelatos, Costas P. Grigoropoulos, Zhen Ma
Summary: The application of architected metamaterials in biomedical engineering has significant implications for mechanobiological research and the improvement of tissue replacements, but further detailed investigations and accurate theoretical models are needed.
MATERIALS TODAY ADVANCES
(2022)
Article
Physics, Applied
Weiqi Cai, Yuancheng Fan, Quanhong Fu, Ruisheng Yang, Wei Zhu, Yujing Zhang, Fuli Zhang
Summary: In this work, a hybrid metamaterial exhibiting extraordinary optical transmission (EOT) behavior was theoretically and experimentally studied. The transmission amplitude and frequency can be modulated by utilizing the first-order Mie-resonant mode and the nonlinear effect of the dielectric cuboid.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Vsevolod Vorobyev, Alena Shchelokova, Alexander Efimtcev, Juan D. Baena, Redha Abdeddaim, Pavel Belov, Irina Melchakova, Stanislav Glybovski
Summary: This study introduces a light, compact metasurface to improve radiofrequency field homogeneity in high- and ultrahigh-field MRI imaging, providing comparable improvement as a traditional dielectric pad. Through numerical simulations and in vivo studies on healthy volunteers, the metasurface demonstrated feasibility in clinical abdominal imaging.
MAGNETIC RESONANCE IN MEDICINE
(2022)
Editorial Material
Engineering, Electrical & Electronic
Marine A. C. Moussu, Redha Abdeddaim, Marc Dubois, Elodie Georget, Andrew G. Webb, Elizaveta Nenasheva, Pavel Belov, Stanislav Glybosvski, Luisa Ciobanu, Stefan Enoch
Summary: This article is a reply to the comments on a previous article about the use of high-permittivity dielectric ring resonators as microscopy magnetic resonance probes.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Optics
Sergei Kosulnikov, Dmytro Vovchuk, Roman E. Noskov, Andrey Machnev, Vitali Kozlov, Konstantin Grotov, Konstantin Ladutenko, Pavel Belov, Pavel Ginzburg
Summary: Scattering cross-section is a crucial property of an object in wireless applications, and resonance phenomena can enhance its electromagnetic visibility. Superscatterers, which can bypass the limitation of subwavelength objects, achieve larger scattering cross-section and directivity by utilizing multiple resonances and constructive interference.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2022)
Article
Optics
Yining Zhu, Hao Luo, Chenying Yang, Bing Qin, Pintu Ghosh, Sandeep Kaur, Weidong Shen, Min Qiu, Pavel Belov, Qiang Li
Summary: Active temperature control devices are commonly used for managing the thermal conditions of enclosures. However, the integration of passive radiative cooling with existing temperature-regulated enclosures has been overlooked. In this study, a photonic-engineered dual-side thermal management strategy is proposed to reduce the active power consumption of enclosures without sacrificing aesthetics, achieving up to 63% power savings.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Optics
D. Sakhno, E. Koreshin, P. Belov
Summary: This study investigates the dispersion of electromagnetic waves in a spatially dispersive metamaterial. The analysis of isofrequency contours reveals that the metamaterial has four optic axes in the frequency range below the artificial plasma frequency. The study also observes the conical refraction effect for all four optic axes.
Article
Optics
Shun Wan, Keda Wang, Fatian Wang, Chunying Guan, Wenjia Li, Jianlong Liu, Andrey Bogdanov, Pavel A. Belov, Jinhui Shi
Summary: Ultrahigh-Q chiroptical resonance metasurfaces based on merging bound states in the continuum are investigated and numerically demonstrated. The destruction of C-2 symmetry leads to leakage of bound states into quasi-bound states, and a chiral quasi-bound state is obtained by oblique incidence or continuous destruction of the mirror symmetry. The resulting chiral resonance peak has a significantly higher Q factor (over 2x10^5) compared to previous work. The proposed structure is also advantageous in terms of fabrication simplicity, as no additional out-of-plane asymmetry is required. This research holds importance for chiral biosensing applications.
Article
Energy & Fuels
Abolfazl Mahmoodpoor, Grigorii Verkhogliadov, Roman Melnikov, Danila S. Saranin, Pavel M. Voroshilov, Daniel Sapori, Ross Haroldson, Albert G. Nasibulin, Arthur R. Ishteev, Vladimir Ulyantsev, Sergey Makarov, Anvar A. Zakhidov
Summary: This study demonstrates that gating the carbon nanotube cathode in an ionic liquid can significantly improve the performance of perovskite solar cells. By adjusting the gate voltage, the Fermi level of the carbon nanotube can be tuned, leading to a decrease in the barrier at the electron transport layer. Furthermore, electrochemical n-doping of the fullerene electron transport layer improves the solar cell efficiency. Surprisingly, the open-circuit voltage is not affected by the gate voltage, indicating that it is determined by the inner p-i-n junction in the perovskite layer.
Article
Chemistry, Multidisciplinary
Anna A. Obraztsova, Daniele Barettin, Aleksandra D. Furasova, Pavel M. Voroshilov, Matthias Auf Der Maur, Andrea Orsini, Sergey Makarov
Summary: In this study, a novel light-trapping electrode (LTE) is proposed to enhance the efficiency of perovskite solar cells. The LTE combines charge collection and light trapping functions, and offers better optical transmission and conductivity compared to traditional transparent conducting oxides. The LTE significantly improves the performance of solar cells under both front and back illumination conditions.
Article
Nanoscience & Nanotechnology
Eugene A. Koreshin, Denis I. Sakhno, Nikita A. Olekhno, Alexander N. Poddubny, Pavel A. Belov
Summary: This study presents a novel method to simulate and study the coupling between arrays of atoms and photons propagating in a waveguide by analogy with a classical problem. Experimental results demonstrate the potential of wire metamaterials to simulate quantum light-matter coupling and other exotic quantum effects.
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS
(2023)
Article
Physics, Applied
Anna Mikhailovskaya, Konstantin Grotov, Dmytro Vovchuk, Andrey Machnev, Dmitry Dobrykh, Roman E. Noskov, Konstantin Ladutenko, Pavel Belov, Pavel Ginzburg
Summary: Electromagnetic scattering bounds on subwavelength structures are crucial for estimating the performance of antennas, RF identification tags, and other wireless communication devices. By using a genetic algorithm to optimize a two-dimensional array of near-field coupled split-ring resonators, the scattering performance is significantly improved. The experimental realization of the device surpasses the theoretical limit and a superradiant criterion is proposed to compare the scattering cross sections with the single-channel dipolar limit.
PHYSICAL REVIEW APPLIED
(2022)
Article
Chemistry, Physical
Grigorii Verkhogliadov, Abolfazl Mahmoodpoor, Pavel Voroshilov, Ross Haroldson, Masoud Alahbakhshi, Albert G. Nasibulin, Sergey V. Makarov, Anvar A. Zakhidov
Summary: We demonstrate that the efficiency of perovskite solar cells can be significantly improved by utilizing self-gating in ionic liquids. This self-gating process is achieved by applying the open circuit voltage generated by the solar cell itself to the carbon nanotube/fullerene electrode, resulting in enhanced performance.
Article
Physics, Applied
Roman Gaponenko, Mikhail S. Sidorenko, Dmitry Zhirihin, Ilia L. Rasskazov, Alexander Moroz, Konstantin Ladutenko, Pavel Belov, Alexey Shcherbakov
Summary: The high directivity of a spherical high-index dielectric antenna with electric dipole excitation is achieved through constructive interference of specific electric and magnetic modes in an open spherical resonator at certain frequencies. The phenomenon of superdirectivity, where directivities exceed the Harrington-Chu and Kildal limits, is experimentally demonstrated. The performance of these antennas is studied and shows excellent agreement between measured and predicted directivities. The use of high-index, low-loss ceramics allows for significant size reduction while maintaining high radiation efficiency, and the concept can be scaled to other frequency ranges.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Eugene Koreshin, Ivan Matchenya, Grigoriy Karsakov, Denis Ilin, Ivan Iorsh, Pavel Belov
Summary: In this study, we extensively investigate the screening effect in anisotropic artificial media made of parallel metal wire arrays, both analytically and experimentally. Our findings reveal that the electrostatic potential distribution generated by a probe charge is spherically symmetrical near the source. We also derive and experimentally confirm a boundary condition for the wire medium. Despite the finite size of the wire arrays, the symmetry of the electric field remains unaffected near the charge, but a local maximum potential occurs at the boundary. The screening depth of the wire medium depends on its geometrical parameters and is proportional to the plasma frequency, suggesting a method to determine the plasma frequency through static E-field measurement.
Article
Engineering, Electrical & Electronic
Konstantin Grotov, Dmytro Vovchuk, Sergei Kosulnikov, Ilya Gorbenko, Leon Shaposhnikov, Konstantin Ladutenko, Pavel Belov, Pavel Ginzburg
Summary: In this study, a rectangular wire bundle superscatterer was designed using a stochastic optimization algorithm, which demonstrated superior scattering capabilities. This structure supports multiple resonant higher-order multipoles and can be used in various wireless applications.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Materials Science, Multidisciplinary
Rustam Balafendiev, Constantin Simovski, Alexander J. Millar, Pavel Belov
Summary: This work focuses on the electromagnetic properties of a resonator used to search for axions, a hypothetical candidate for explaining dark matter. By studying a wire medium loaded resonator, the authors found that the resonator's quality factor decreases as the volume increases, eventually being dominated by resistive losses in the wires. The experimental results confirm the theoretical findings, and even metals like copper can achieve higher quality factors than previously assumed.
