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Article
Optics
Yuhang Sun et al.
Summary: An all-dielectric metasurface linear-polarization converter composed of silicon diatomic nanopillar arrays is proposed in this paper. It can convert linear polarization to arbitrary angles by changing the orientation angles of the two nanopillars, with a conversion efficiency above 90%. The performance of the metasurface is theoretically analyzed and numerically simulated, showing that the polarization angle of the output wave can be easily controlled. This proposed metasurface breaks the limitation of traditional polarization converters and has potential applications in wireless communications, imaging systems, and other fields.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Optics
Zhen Peng et al.
Summary: By introducing vanadium dioxide with the metal to insulate phase transition, a broadband absorption and polarization conversion switchable terahertz metamaterial device can be achieved. In the metallic state of vanadium dioxide, the device exhibits broadband absorption with over 90% absorption from 1.03 THz to 2.62 THz, which is insensitive to incident angle and polarization. In the insulate state of vanadium dioxide, the device functions as a polarization converter, converting linear to cross polarization and linear to circular polarization. The proposed bifunctional device shows great potential in tunable and diverse functionalities for THz devices.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Hao Zhang et al.
Summary: In this paper, a flexible and tunable broadband transmissive THz cross-polarization converter based on a hybrid metal-graphene metasurface is proposed. The cross-polarization conversion efficiency (CPCE) of the device can be tuned by adjusting the graphene Fermi level, and the proposed structure has a low requirement on the graphene mobility.
RESULTS IN PHYSICS
(2023)
Article
Engineering, Multidisciplinary
Lin Bai et al.
Review
Optics
Elijah Effah et al.
Summary: The emergence of metamaterials has provided a new platform to control light at the nanoscale. Recent research on metasurfaces has explored active control mechanisms to modulate their optical properties. This includes the use of mechanical deformation with deformable polymeric substrates to dynamically tune the optical properties of metasurfaces, with potential applications in biosensing, bioimaging, and wearable biomedical devices.
Article
Optics
Zakriya Faraz et al.
Summary: In modern communication systems, the issue of polarization is addressed by designing a high efficient polarization converting metasurface (PCMS) that can reduce the radar cross section (RCS). The PCMS achieves a high polarization conversion ratio with a wide fractional bandwidth. The proposed PCMS is used in an array configuration to reduce the RCS in an ultra-wide frequency range.
OPTICS COMMUNICATIONS
(2023)
Article
Chemistry, Analytical
Sanghyeok Yu et al.
Article
Materials Science, Multidisciplinary
Mingjia Xing et al.
Summary: A dual-functional terahertz metamaterial device is proposed based on the temperature-controlled phase change properties of vanadium dioxide (VO2). The device can switch between an absorber and a polarization converter. Simulation results show that the device acts as a terahertz wave absorber in the metallic state of VO2, with a reflected extinction ratio of less than -15 dB in the frequency range of 1.07-1.19 THz. When VO2 is in the insulated state, the device functions as a polarization converter, achieving a polarization conversion rate of over 90% in the frequency range of 1.43-1.51 THz. The proposed device has broad applicability in terahertz detection, modulation, and switching.
Article
Nanoscience & Nanotechnology
Ruichao Zhu et al.
Summary: The continuous increase in communication capacity requires improved transmission efficiency. Conventional repeaters are unable to accommodate sudden appearances of receiving devices. In this study, an adaptively reconfigurable multi-beam reflective metasurface is proposed for signal transmission. The metasurface, designed with varactor diodes, is capable of dynamically switching between multiple beams based on detection information. The fabricated repeater verifies the effectiveness of the design. This work sheds light on the potential applications of intelligent metasurfaces in communications and smart homes.
Article
Computer Science, Information Systems
Tauqir Ahmad et al.
Summary: This paper presents an ultra-wideband and wide incident angle metasurface device for efficient polarization conversion, achieved through strong electromagnetic resonance coupling. It can be applied in satellite communication, radar cross-section reduction, and navigation systems.
Article
Materials Science, Multidisciplinary
Yan Teng et al.
Summary: The study presents two types of quad-beam splitters (QBS) based on coding metamaterials, with the 2 x 2 QBS showing higher power efficiency and broader bandwidth compared to the 1 x 4 QBS when tested with normally incident electromagnetic waves.
Article
Nanoscience & Nanotechnology
Jin Zhang et al.
Summary: This paper proposes a design for an optically transparent and dynamically tunable microwave-absorbing metasurface that enables dual modulations independently for two orthogonal linearly polarized excitations. The tunability is achieved by an anisotropic meta-atom composed of patterned graphene structure with dynamic and independent control of electromagnetic responses. Experimental measurements and circuit modeling demonstrate the dual tunability and physical relation between graphene's sheet resistance and polarization-independent modulations. The proposed metasurface enhances multitasking stealth performance in complex scenarios and has potential applications in advanced solar energy devices.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Optics
Haoliang Cheng et al.
Summary: Programmable metasurfaces based on row-column encoding are proposed to achieve dynamic control of electromagnetic waves. By controlling the on-off states of diodes, a 180 degrees phase change and high reflectivity can be achieved. Experimental results confirm the beam scanning function of the designed programmable metasurface at a specific frequency.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Optics
Jianfeng Yang et al.
Summary: This paper integrates continuous transmission amplitude modulation and phase coding into a metasurface, enabling dynamic manipulation of transmitted electromagnetic fields in the microwave regime. By changing the bias voltage, control over the amplitude modulation and phase coding of electromagnetic waves is achieved, with potential applications in various fields.
Article
Optics
Yijia Zhao et al.
Summary: This study proposes a temperature-controlled multifunctional metamaterial polarization converter with large asymmetric transmission (AT) utilizing VO2. By introducing a gold-VO2 grating, the converter can switch between reflection mode and transmission mode through phase transition control. When VO2 is in the metallic state, the converter efficiently converts incident polarized waves into cross-polarized waves, while in the insulating state, it exhibits a significant AT effect at specific frequencies.
Article
Chemistry, Multidisciplinary
Jing Li et al.
Summary: This paper proposes a stretchable metasurface with both multifunctionality and tunability, which has great potential for applications in optical devices. By changing the period Px of the metasurface, the functions can be switched and the splitting angle can be adjusted.
Article
Nanoscience & Nanotechnology
Siyu Duan et al.
Summary: In this study, we demonstrate a dynamic THz metasurface by introducing an ultrathin superconducting microbridge into metallic resonators, which enables ultrafast THz modulation. The observed periodic oscillation reveals the excitation of Higgs amplitude mode, providing a new approach for picosecond-scale THz modulation.
Article
Optics
Jun Yang et al.
Summary: This work demonstrates a tunable cross-polarized transmission structure at the terahertz frequency and investigates the polarization state during modulation. By improving the resonance process in a Fabry-Perot-like resonant cavity, the proposed structure significantly enhances the polarization conversion performance.
Article
Optics
Chun LI et al.
Summary: In this experiment, a tunable electromagnetically induced transparency (EIT)-like response in bright-bright mode resonators was presented. By using NbN film and a gold film composite structure metamaterial, a significant slow-light effect was observed at the transmission window. The temperature-dependent transmittance and slow-light effect were due to the change in intrinsic ohmic loss of the superconducting NbN film.
Article
Chemistry, Multidisciplinary
Yilin Zheng et al.
Summary: This article introduces a dual-band metasurface-assisted wireless communication scheme that enhances information security by providing additional physical channels for transmission. Experimental results confirm that the transmitted picture can be successfully retrieved by synthesizing received signals.
Article
Chemistry, Multidisciplinary
Hai Lin Wang et al.
Summary: This paper proposes a programmable polarization-modulated information metasurface for wireless communication encryption. The encoding and hiding of a meta-key in different linear polarization channels, modulation and transmission using the information metasurface, and reception and decoding using polarization discrimination antennas are demonstrated. The feasibility of the scheme is verified through a wireless transceiver system.
Article
Materials Science, Multidisciplinary
Haiyun Yao et al.
Summary: This article presents a novel flexible terahertz biosensor that utilizes electromagnetic-induced transparency-like metasurfaces and patterned graphene for multidimensional ultra-sensitive detection of plant protein. With changes in frequencies and amplitude, the biosensor is capable of detecting plant protein molecules with a minimum detection limit of 42.3 pg/mL.
RESULTS IN PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Chuan Shen et al.
Summary: In this study, a novel metasurface-based holographic display system is proposed to achieve clear holographic imaging at different positions, effectively relieving the alignment requirements of the imaging system.
IEEE PHOTONICS JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Xiaoqiang Jiang et al.
Summary: A broadband polarization conversion metasurface is proposed for efficient wavefront manipulation in THz wireless communication systems, showing high transmission and polarization conversion rates. Applications like anomalous refraction, focusing metalens, and vortex beam generation demonstrate the vast potential of the metasurface.
Article
Nanoscience & Nanotechnology
Jiaxin Wang et al.
Summary: A fluorescence conversion layer with polarization characteristics was proposed for enhancing UV polarization detection. By optimizing the composite film preparation, efficient spectral conversion and polarization detection were achieved, which is of great significance for improving solar-blind UV detection and military target recognition.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Optics
Chun Li et al.
Summary: The study introduces an electrically tunable superconducting device capable of switching THz wave transmission with high efficiency and good narrow-bandpass characteristics.
Article
Biophysics
Ruiyun Zhou et al.
Summary: This study investigates the integration of graphene with THz metasurface into a microfluidic cell for sensitive biosensing in liquid environment, demonstrating high sensitivity in detecting DNA sequences of Escherichia coli O157:H7. The results suggest the potential of the proposed graphene-metasurface microfluidic biosensor for label-free biosensing applications.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Ping Yu et al.
Summary: This research demonstrates the use of liquid crystals as a thin surrounding medium for electrically tunable optical metasurfaces, achieving rapid and reversible polarization rotation of linearly polarized light at visible frequencies. By controlling both the geometric and propagation phase tuning capabilities, flexible control over the polarization angle is achieved.
Article
Materials Science, Multidisciplinary
Jiaji Yang et al.
Summary: In this paper, two kinds of polarization converters were proposed to reveal the relationship between phase gradient and linear/circular polarization conversion. By designing four kinds of digital MSs to explore the energy scattering characteristics, the relevance between RCS reduction and reflection amplitude was verified. Experimental results matched well with simulations, providing valuable insights into polarization conversion MSs and the connection between reflection loss and RCS reduction.
Article
Optics
Jiarui Zhang et al.
Article
Optics
Jing Li et al.
Article
Optics
Jing-Heng Chen et al.
Article
Multidisciplinary Sciences
Geyang Qu et al.
NATURE COMMUNICATIONS
(2020)
Article
Optics
Junxiang Huang et al.
CHINESE OPTICS LETTERS
(2020)
Article
Computer Science, Information Systems
Yunping Qi et al.
Article
Multidisciplinary Sciences
Noah A. Rubin et al.
Article
Engineering, Electrical & Electronic
Xi Gao et al.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2018)
Article
Physics, Applied
S. L. Jiang et al.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2017)
Article
Engineering, Electrical & Electronic
Xingyang Yu et al.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2016)
Article
Optics
Miriam Serena Vitiello et al.
Article
Chemistry, Multidisciplinary
Lixiang Liu et al.
ADVANCED MATERIALS
(2014)
Article
Physics, Applied
G. Scalari et al.
APPLIED PHYSICS LETTERS
(2014)
Article
Chemistry, Multidisciplinary
Xueqian Zhang et al.
ADVANCED MATERIALS
(2013)
Article
Physics, Applied
L. Kang et al.
JOURNAL OF APPLIED PHYSICS
(2011)
Article
Engineering, Electrical & Electronic
M Kroug et al.
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2001)
