Article
Physics, Applied
Zhiyu Bao, Jicheng Wang, Zheng-Da Hu, Yifan Chen, Chengliang Zhang, Feng Zhang
Summary: The study proposes a novel absorber design that shows great potential in selective absorption and sensor applications, validated through theoretical simulations and numerical calculations. By adjusting the Fermi level of graphene and the height of dielectric material, the performance coordination of the device and the expansion of the frequency range were achieved.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Jun Zhu, Changsong Wu, Yihong Ren
Summary: The study proposed a metamaterial absorber composed of graphene, and demonstrated that dynamic tuning of the absorption range and absorption bandwidth could be achieved by adjusting the Fermi level of the graphene. This has theoretical and engineering significance in the domains of thermal photo-voltaics, solar cells, and sensors.
RESULTS IN PHYSICS
(2021)
Article
Chemistry, Physical
Marian Baah, Alesia Paddubskaya, Andrey Novitsky, Nadzeya Valynets, Mukesh Kumar, Tommi Itkonen, Markku Pekkarinen, Ekaterina Soboleva, Erkki Lahderanta, Maria Kafesaki, Yuri Svirko, Polina Kuzhir
Summary: A novel technique involving 3D printing, electroplating, and chemical vapor deposition was used to fabricate a polymer nanomembrane covered with multilayered graphene, showing nearly perfect absorption in the THz frequency range. The theoretical explanation provided insights into the dark mode formation of the metasurface, enabling potential applications in various fields requiring graphene/polymer nanomembranes.
Review
Chemistry, Multidisciplinary
Sangjun Lee, Sangin Kim
Summary: In this review, various types of graphene-based perfect absorbers are discussed as a solution to the poor light absorption of pure graphene. Their operation principles, design requirements, recent progress, and potential applications are addressed. The importance of mirror-less perfect absorber design is emphasized due to simplified fabrication processes or enhanced tolerance for fabrication error.
APPLIED SCIENCES-BASEL
(2023)
Review
Nanoscience & Nanotechnology
Yu Yao, Jin Zhou, Zhengqi Liu, Xiaoshan Liu, Guolan Fu, Guiqiang Liu
Summary: Metamaterial light absorbers have gained significant attention for their absorption efficiency and wide range of applications, but traditional noble metals based absorbers can suffer from structural damage due to local high temperatures. Intensive research has focused on developing absorbers that can maintain efficient light absorption and structural stability at high temperatures. Refractory materials are seen as key to providing robust thermal stability and high performance for light absorption.
Article
Physics, Applied
Zhichao Xiong, Bo Wang
Summary: In this paper, a bifunctional metamaterial perfect absorber (MPA) is proposed by combining sodium and graphene with a two-dimension grating structure, serving as both a tunable absorber and a refractive index sensor. The MPA achieves perfect absorption for near-infrared light through the finite-difference time-domain method and impedance matching principle. The MPA's perfect absorption is explained by the electric and magnetic field distribution attributed to the metal assisted guided-mode resonance. Furthermore, the MPA has a high sensitivity and a wide range of applications in various fields.
APPLIED PHYSICS LETTERS
(2023)
Article
Engineering, Multidisciplinary
Liyun Cao, Yifan Zhu, Sheng Wan, Yi Zeng, Badreddine Assouar
Summary: This study presents a non-Hermitian loss-modulation beam and plate model based on complex wavenumber plane for designing lossy elastic metamaterials. The high-performance absorption of the metamaterial is achieved through a combination of dissipation-radiation balance and multiple reflections. The study provides a new approach for broadband low-frequency vibration suppression and offers an effective paradigm for wave engineering in non-Hermitian elastic wave systems.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Yuanlin Jia, Huaiyuan Yin, Huawei Yao, Junqiao Wang, Chunzhen Fan
Summary: A graphene-based metal-insulator-metal metamaterial was studied to achieve an active and adjustable multi-band perfect absorber. By breaking the symmetry of T-shaped cavities, a transition from dual-band to tri-band absorption was observed.
RESULTS IN PHYSICS
(2021)
Article
Acoustics
Golakoti Pavan, Sneha Singh
Summary: This paper presents a new Porous Labyrinthine Acoustic Metamaterial (PLAM) that achieves near-perfect sound absorption at low frequencies through a folded slit labyrinthine structure in a micro-porous matrix. The research provides a new approach for designing labyrinthine metamaterials with broader sound absorption range for aerodynamic noise control applications.
Article
Optics
Baoku Wang, Ke Gai, Ruoxing Wang, Fei Yan, Li Li
Summary: This paper presents an interesting scheme of an ultra-broadband perfect terahertz (THz) absorber using a periodic-conductivity graphene metasurface. By modulating the conductivity of graphene in a periodic manner, the absorber can generate dense high-order resonance modes and achieve ultra-broadband continuous absorption. This scheme is significant for the development of broadband THz absorbers and has promising application prospects in THz stealth, imaging, and communication fields.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Yuqian Wang, Yingting Yi, Danyang Xu, Zao Yi, Zhiyou Li, Xifang Chen, Huge Jile, Jianguo Zhang, Liangcai Zeng, Gongfa Li
Summary: A tunable terahertz narrowband absorber based on bulk Dirac semimetal (BDS) is designed in this paper. By changing the Fermi energy level of BDS, the absorption peaks can be adjusted, achieving ideal narrowband absorption and dynamic tuning. This absorber shows great application value in many fields and provides a new reference for future research.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2021)
Article
Optics
Yiming Chen, Yansong Fan, Zhengzhuo Zhang, Zhihong Zhu, Ken Liu, Jianfa Zhang, Wei Xu, Xiaodong Yuan, Chucai Guo
Summary: The study introduces high-resolution angle sensors based on ultra-narrowband graphene perfect absorbers, demonstrating their superior performance in angle measurement with small angular resolution and fast response speed. The experiment verifies the excellent performance of graphene sensors in practical applications.
Article
Materials Science, Multidisciplinary
Vishnu Prasad Shrivastava, Kunal Radhawal, Satyam Rawat, Richa Khare
Summary: A simple and cost-effective tri-layered metamaterial design based on zinc oxide (ZnO) is proposed in this paper, which exhibits almost perfect absorption in both the mid-wavelength infrared (MWIR) and long-wavelength infrared (LWIR) regions with excellent transmission in the visible range. The proposed metamaterial shows almost perfect absorption in LWIR and MWIR regions, while maintaining excellent transmission in the visible region.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Jun Wu, Xiuwei Yang, Zhongmin Wang, Biyuan Wu, Xiaohu Wu
Summary: This study investigates tunable multichannel perfect absorption in monolayer graphene at terahertz frequencies achieved by depositing a graphene monolayer on a Fibonacci quasiperiodic multilayer structure. The absorptivity is attributed to the graphene Tamm plasmon polaritons and multiple photonic stopbands of dielectric Fibonacci multilayers. The multichannel operating frequencies can be flexibly tuned through varying the angle of incidence and structure dimensions, and the absorption is not sensitive to the polarization state.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Optics
Gongli Xiao, Zhixiong Lin, Hongyan Yang, Yanping Xu, Sitong Zhou, Haiou Li, Xingpeng Liu, Peihua Wangyang
Summary: This paper numerically investigates a tunable and anisotropic perfect absorber in a graphene-black phosphorus nanoblock array structure. The suggested structure exhibits polarization-dependent anisotropic absorption in the mid-infrared, and the absorption spectra can be tailored by adjusting the geometrical parameters and doping amounts. The results have the potential in the design of polarization-selective and tunable high-performance devices in the mid-infrared.
Article
Chemistry, Physical
Jinlei Hu, Zhengda Hu, Jicheng Wang, Aliaksei Balmakou, Sergei Khakhomov, Igor Semchenko
Summary: A hybrid Tamm system has been proposed for a tunable multichannel absorber, with four perfect absorption peaks generated by two resonant modes due to guided-mode resonance and optical Tamm state. The interaction between the modes leads to mode hybridization, which can be adjusted by the grating period. The GMR-based peak can be actively modulated discretely by tuning the polarization angle or continuously by changing the chemical potential of graphene.
Article
Chemistry, Physical
Zexiang Wang, Wenjie Shi, Zhengda Hu, Jicheng Wang, Sergei Khakhomov, Igor Semchenko
Summary: Graphene technology can be used to control Fano resonance at different wavelengths, with great potential for applications in integrated optics manufacturing.
Article
Materials Science, Multidisciplinary
Shixuan Hao, Jicheng Wang, Ivan Fanayev, Sergei Khakhomov, Jingwen LI
Summary: This study investigates the super-resolution capability of different types of multilayered graphene-dielectric hyperbolic metamaterials to break the diffraction limit of light. A super-resolution of lambda/10 is achieved and the dispersion and super-resolution performance can be dynamically tuned by adjusting the chemical potential of graphene. The research is important for terahertz imaging systems and the development of hyperbolic metamaterial modulation devices.
OPTICAL MATERIALS EXPRESS
(2023)
Article
Physics, Multidisciplinary
Zheng-Da Hu, Jicheng Wang, Yun Zhu, Mengmeng Li, Sergei Khakhomov, Igor Semchenko
Summary: We investigate the impact of non-Kolmogorov atmospheric turbulence on the Holevo channel capacity of a quantum communication scheme using the Hypergeometric Gaussian-II (HyGG-II) modes. By modulating the hollowness parameter, the HyGG-II modes exhibit higher capacity compared to the Laguerre-Gaussian modes. We explore the effects of low-order turbulence aberrations and find that tilt aberration dominates and defocus and astigmatism aberrations are negligible, while coma aberration becomes non-negligible under enhanced turbulence strength or channel zenith angle. Our results show that only total and tilt aberrations are sensitive to the non-Kolmogorov power-law exponent. This research has implications for quantum optical communication and aberration compensation in turbulent channels utilizing vortex beams.
COMMUNICATIONS IN THEORETICAL PHYSICS
(2023)
Article
Physics, Applied
Zuhua Chen, Dunhui Wang, Chengliang Zhang, Zhengming Zhang, Guochun Zhang, Heng Tu, Jun Shen
Summary: In this study, the magnetocaloric effect of GGMO and DGMO was investigated. GGMO showed a large magnetic entropy change (-41.2 J kg(-1) K-1), while DGMO exhibited a moderate change (-14.1 J kg(-1) K-1). GGMO also had higher refrigeration capacity and relative cooling power compared to DGMO under a magnetic field of 0-7 T.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Spectroscopy
I. V. Semchenko, S. A. Khakhomov, I. S. Mikhalka, A. L. Samofalov, P. V. Somov
Summary: The modeling confirms the polarization selectivity of a double DNA-like helix for waves with left and right circular polarization. Different lengths of helices are considered, and their resonance is achieved when the wavelength of the incident field is approximately equal to the helix turn length. The strongest reflected wave has the opposite twist direction of the electric vector relative to the double helix, indicating its ability to reflect waves with specific circular polarization.
JOURNAL OF APPLIED SPECTROSCOPY
(2023)
Article
Optics
Bolun Zhang, Zheng-Da Hu, Jingjing Wu, Jicheng Wang, Yanguang Nie, Feng Zhang, Mengmeng Li, Sergei Khakhomov
Summary: Topological charge (TC) is a crucial attribute of an optical vortex (OV) that indicates the twisted characterization of the wavefront. By transforming TCs into trigonometric functions of the azimuthal angle, perfect vortex beams (PVBs) with a sine-function TC can be generated using all-dielectric geometric metasurfaces. The proposed PVBs offer potential advancements in orbital angular momentum manipulation, information storage, and optical communication.
Correction
Materials Science, Multidisciplinary
Shixuan Hao, Jicheng Wang, Ivan Fanayev, Sergei Khakhomov, Jingwen Li
OPTICAL MATERIALS EXPRESS
(2023)
Editorial Material
Nanoscience & Nanotechnology
Igor V. Semchenko, Sergei A. Khakhomov, Jicheng Wang
FRONTIERS IN NANOTECHNOLOGY
(2023)
Review
Nanoscience & Nanotechnology
Igor V. Semchenko, Sergei A. Khakhomov
Summary: The DNA molecule is considered as an object of nature-like technologies, focusing on the special electromagnetic properties of DNA-like helices. DNA-like helices are regarded as artificial micro-resonators, exhibiting both dielectric and magnetic properties. The article presents methods for creating spatial structures directly from DNA molecules and DNA-like helices. It highlights the importance of considering the special electromagnetic properties of DNA-like helices in designing metamaterials and metasurfaces to obtain the desired properties and advantages over other artificial structures.
FRONTIERS IN NANOTECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Peng-Tao Cheng, Zhao Zhang, Xu-Cai Kan, Cheng-Liang Zhang, Zheng-Ming Zhang, Bing Li, Dun-Hui Wang
Summary: This study finds that MnAs(0.94)S(b0.0)6 alloy exhibits a large barocaloric entropy change under low hydrostatic pressures, showing excellent barocaloric cooling performance.
Article
Materials Science, Multidisciplinary
Ivan Fanyaev, Ihar Faniayeu, Jingwen Li, Sergei Khakhomov
Summary: The proposed electro-thermally tunable hyperlens design, consisting of alternating graphene/metal/dielectric layers, enables subdiffraction far-field imaging and real-time amplification at terahertz frequencies. By tuning the chemical potential of the graphene layer through applied voltage, it enhances the intensity of the subwavelength image in the near and far zones. This dynamically tunable hyperlens offers multifunctional possibilities for light manipulation and improves the quality of subwavelength images in the terahertz range.
RESULTS IN PHYSICS
(2023)
Article
Optics
Alina V. Semchenko, Gagik Y. Ayvazyan, Viktoriya V. Malyutina-Bronskaya, Sergei A. Khakhomov, Dmitry L. Kovalenko, Andrei A. Boiko, Vitali V. Sidski, Anton V. Nestsiaronak, Alexander A. Mayevsky, Konstantin D. Danilchenko, Dmitry V. Zhigulin, Vladimir A. Pilipenko, R. Subasri, Nikolai V. Gaponenko
Summary: This study investigates the photocurrent and spectral sensitivity of silicon/SrTiO3:xNb/perovskite structures. The sol-gel method is used to deposit undoped SrTiO3 layers and niobium-doped (SrTiO3:Nb) layers with atomic concentrations of 3 and 6% Nb. The perovskite layer, CH3NH3PbI3-xClx, is deposited using the vacuum co-evaporation technique. The fabricated samples are characterized by scanning electron microscopy and X-ray diffraction measurements. The results show that the structures are photosensitive with a variation of photocurrent depending on Nb concentration, and the highest values are observed with a SrTiO3:Nb layer containing 3 at.% of Nb. The possibility of applying this structure in perovskite solar cells and photodetectors is discussed.
Article
Nanoscience & Nanotechnology
Igor V. Semchenko, Ivan S. Mikhalka, Sergei A. Khakhomov, Andrey L. Samofalov, Aliaksei P. Balmakou
Summary: The possibility of using a conducting double DNA-like helix as an electromagnetic wave polarizer has been demonstrated. The behavior of the double helix at high-frequency resonance has been studied and it has been found that it can selectively reflect waves with specific circular polarization. This research has potential applications in nanotechnology.
FRONTIERS IN NANOTECHNOLOGY
(2022)