Article
Chemistry, Multidisciplinary
Xuanmiao Hong, Kai Wang, Chao Guan, Xiaobo Han, Yang Chen, Shuhang Qian, Xiangyuan Xing, Cheng-Wei Qiu, Peixiang Lu
Summary: We propose and demonstrate a multiplexed third-harmonic hologram with four channels based on a chiral Au-ZnO hybrid metasurface. The metasurface allows for independent design of left- and right-handed circularly polarized components of the holographic images, and achieves high nonlinear conversion efficiency. This provides a promising platform for efficient and multifunctional nonlinear nanodevices.
Article
Optics
Si Jia Li, Bo Wen Han, Zhuo Yue Li, Xiao Bin Liu, Guo Shai Huang, Rui Qi Li, Xiang Yu Cao
Summary: This paper proposes a scheme for modulating dual-circularly polarized multi-beam using a transmissive coding metasurface, based on the Pancharatnam-Berry phase control technique and phase compensation principle.
Article
Physics, Applied
Guanyu Shang, Haoyu Li, Zhuochao Wang, Kuang Zhang, Shah Nawaz Burokur, Jian Liu, Qun Wu, Xuemei Ding, Xumin Ding
Summary: This paper proposes a polarization multiplexing method to encode two different information channels under orthogonally linear-polarized incidences using a coding metasurface. The experimental results confirm the potential of the proposed multiplexed two-bit coding meta-hologram in various applications such as data storage and information processing.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Lei Zhu, Wenjuan Zhou, Liang Dong, Chunsheng Guan, Guanyu Shang, Xumin Ding, Shah Nawaz Burokur, Qun Wu
Summary: This paper designs and fabricates a full space monolayer meta-hologram, which provides two different information channels in the regions where electromagnetic waves are transmitted and reflected. By tuning geometrical parameters, 1-bit phase and amplitude modulation can be individually achieved. Experimental results show that different hologram images in the transmission and reflection modes can be independently controlled at the same frequency by orthogonally linearly polarized waves. The proposed coding meta-hologram offers broad prospects for data storage, information processing, resource saving, and other imaging applications due to its easy fabrication and unprecedented miniaturization capability.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Luming Zhang, Hao Jiang, Tingxuan Hu, Jian Zhang
Summary: In this paper, a multipolarization coding metasurface (MCMS) is proposed to achieve transmissive linear and left-hand circular polarization beam conversion and focusing in the millimeter-wave band. By manipulating the phase of the transmissive wave using a phase-rotation unit cell (PRUC) based on Pancharatnam-Berry (PB) phase, the MCMS demonstrates good performance in converting linearly polarized wave to right-handed circularly polarized wave and left-handed circularly polarized wave to right-handed circularly polarized wave in a wide frequency range. The fabricated prototypes using conventional printed-circuit board technology show good agreement between measured and simulated results, indicating the potential of MCMS in satellite communications (SATCOM).
JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES
(2023)
Article
Materials Science, Multidisciplinary
Junhyeok Jang, Gun-Yeal Lee, Jangwoon Sung, Byoungho Lee
Summary: Meta-holograms offer capabilities not feasible in conventional holograms, such as full-color, broadband, and bifacial image generation performance. By combining detour phase holograms with spatial multiplexing, four phase profiles can be recorded on a single device, expanding the optical information. The independent wavefront modulation achieved by engineering the scattering properties of the meta-atom allows for generating four different images with high fidelity, showcasing potential applications in holography, multifunctional flat optics, and off-axis optical devices.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Analytical
Shuo Cao, Jianhe Zhou, Ruxue Li, Chunhua Xue
Summary: In this paper, a dual-polarized Huygens unit with a double-layer metallic pattern on a dielectric substrate is proposed. It supports Huygens' resonance, achieving complete transmission phase coverage. By optimizing the structural parameters, better transmission performance can be achieved. When used as a meta-lens, it exhibits good radiation performance with a maximum gain of 31.15 dBi, aperture efficiency of 42.7%, and a 3 dB gain bandwidth from 26.4 GHz to 30 GHz. Due to its excellent radiation performance and simple fabrication, this Huygens meta-lens has important applications in millimeter-wave communication systems.
Article
Engineering, Electrical & Electronic
Tian Lou, Xue-Xia Yang, Guoqiang He, Wenquan Che, Steven Gao
Summary: This letter introduces a dual-polarized nonreciprocal active metasurface for spatial electromagnetic wave amplification, using a receiving, amplifying, and reradiating scheme. The design utilizes square patch antennas, T-shaped microstrip line coupling structure, and bipolar transistors for dual polarization spatial amplification of electromagnetic waves. The prototype MTS verified the design with effective spatial amplification coefficients exceeding 0 dB.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Yugan Tang, Ya Zhang, Boyang Xie, Hui Liu, Hua Cheng, Jianguo Tian, Shuqi Chen
Summary: In this study, a passive reflective Janus coding acoustic metasurface is proposed and its performance is demonstrated numerically and experimentally. The metasurface is composed of double-layer variable-pitch helical structures with smoothly varying acoustic impedance, which enables two-faced direction-dependent coding. The switchable Janus coding metasurface can achieve switchable functions on one side without affecting the other side.
Article
Engineering, Electrical & Electronic
Teng Li, Jingwen Sun, Hongfu Meng, Yizhu Shen, Sanming Hu, Wenbin Dou, Zhi Ning Chen, Thomas Zwick
Summary: This article introduces a dual-polarized double-layer metasurface lens using split dipole unit cells. It achieves a wide phase range and high transmission coefficient amplitude, performing well in experimental verification at 30 GHz.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Na Zhang, Ke Chen, Jianmin Zhao, Qi Hu, Kui Tang, Junming Zhao, Tian Jiang, Yijun Feng
Summary: This study proposes a dual-polarized reconfigurable reflectarray (RRA) with dual-polarized beam control using a dual-channel programmable metasurface. By changing the working states of p-i-n diodes in each metasurface element, well-defined beam scanning can be achieved. The proposed RRA has promising applications in wireless communication and tracking/detecting systems.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Lin-Xiao Wu, Qi Hu, Xin-Yao Luo, Junming Zhao, Tian Jiang, Ke Chen, Yijun Feng
Summary: An anisotropic metasurface is proposed for independent phase control on orthogonal linearly-polarized waves and is integrated with two Vivaldi feed sources to implement a low-profile wideband dual-polarized reflectarray antenna operating in Ku-band.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Jing Wang, Wei Wang, Aimeng Liu, Meng Guo, Zhenyu Wei
Summary: A dual-polarized metasurface antenna with miniaturized radiating aperture is proposed for polarimetric synthetic aperture radar, utilizing characteristic mode analysis for optimization. The antenna achieves reduced aperture size and improved isolation performance, with measured results showing good cross-polarization levels and high isolation between ports.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2021)
Article
Physics, Applied
Ling Yun Niu, Hao Chi Zhang, Pei Hang He, Min Tang, Meini Wang, Le Peng Zhang, Guo Dong Bai, Junfa Mao, Tie Jun Cui
Summary: The paper proposes a novel dual-band and dual-polarized programmable metasurface unit with high isolation between channels. Simulated and measured results illustrate excellent performance, showing potential wide applications in satellite communications and radar systems.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Manting Wang, Dashuang Liao, Jun Yan Dai, Chi Hou Chan
Summary: This article presents a reconfigurable multifunctional metasurface (RMM) with independent control of orthogonally polarized waves. It demonstrates two functionalities: beam steering and polarization conversion.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Zhen Tan, Jianjia Yi, Qiang Cheng, Shah Nawaz Burokur
Summary: This article proposes an analytical design methodology for different kinds of perfect absorbers (PAs) based on metagratings (MGs). By choosing the period of the MG to ensure only the 0th order diffraction mode, the specific load impedance density is controlled to achieve destructive interference of specular reflection and 0th mode diffraction, thereby realizing perfect wave absorption.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Optics
Jinxing Li, Yueyi Yuan, Guohui Yang, Qun Wu, Wei Zhang, Shah Nawaz Burokur, Kuang Zhang
Summary: This paper introduces a novel method for dispersion control in optical systems - chirality-assisted phase modulation, which allows for engineered dispersion characteristics of meta-atoms. Two hybrid dispersion-engineered metamirrors are constructed and tested to demonstrate the effectiveness and flexibility of this method. This research opens up a new approach for dispersion control and provides new insights for metasurface design.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Dawei Zhang, Xin Liu, Yaxiu Sun, Kuang Zhang, Qun Wu, Yingsong Li, Tao Jiang, Shah Nawaz Burokur
Summary: This work proposes an approach to achieve dispersion engineering of spoof plasmonic metamaterials with adjustable cutoff frequencies. Interdigital capacitance structures are used to construct unit cells. The dispersion properties and the influence of unit cell parameters on cutoff frequencies are analyzed. A spoof surface plasmon polariton (SSPP) transmission line (TL) is developed based on the proposed unit cell and a smooth transition. The feasibility of the strategy is validated through simulation and measurement of the TL's transmission characteristics. The proposed approach can greatly enhance the development of versatile microwave integrated circuits and systems based on spoof plasmonic metamaterials.
Article
Materials Science, Multidisciplinary
Zhen Tan, Jianjia Yi, Shixiong Wang, Xiaoming Chen, Shah Nawaz Burokur
Summary: Metagrating, a periodic metamaterial structure with structural simplicity and sparsity, ensures high efficiency even for wide-angle beam deflections with only a few meta-atoms. This work provides a fully analytical design study of a metagrating containing two meta-atoms in a supercell, including closed-form design formulas for impedance density expression, passive and lossless conditional equations, and power ratio control equations for diffraction modes. Numerical demonstrations of metagratings composed of microstrip capacitor structures at 10 GHz for wide-angle beam steering and beam splitting confirm the correctness and effectiveness of the proposed theoretical method.
OPTICAL MATERIALS EXPRESS
(2023)
Article
Optics
Zhen Tan, Jianjia Yi, Vladislav Popov, Shah Nawaz Burokur
Summary: Metagratings with zero load impedance are proposed for efficient beam splitting. Unlike previous metagratings that require specific capacitive and/or inductive structures, the proposed metagrating consists solely of simple microstrip-line structures, enabling low-cost fabrication at higher frequencies. The article presents a detailed theoretical design procedure with numerical optimizations, and demonstrates high performance at 30 GHz for several reflection-type beam-splitting devices. This paves the way for simple and low-cost printed circuit board (PCB) metagratings at millimeter-wave and higher frequencies.
Article
Physics, Applied
Jialin Feng, Hongyu Shi, Jianjia Yi, Anxue Zhang, Shah Nawaz Burokur, Juan Chen, Xiaoming Chen, Zhuo Xu
Summary: In this paper, cascaded dual-channel transmissive metasurfaces are designed to generate different cylindrical vector beams (CVBs) and independently control their phases. The proposed approach realizes a regular polygonlike focus and a lateral displacement of the focal spot in different focal planes at 7.8 GHz through different channels. This method improves the flexibility of focusing and has important potential applications in the medical domain.
PHYSICAL REVIEW APPLIED
(2023)
Article
Engineering, Electrical & Electronic
Francois Villamizar, Cedric Martel, Fabrice Boust, Shah Nawaz Burokur
Summary: In this work, sparse metasurfaces are designed to reduce the electromagnetic scattering of metallic cylinders. The metasurfaces are composed of relatively sparse meta-atoms, limited only by the impedance density without considering any resonance factor. By optimizing the load impedance distribution of the sparse metasurfaces coating the cylinders, the scattering cross section of the cylinders can be considerably reduced. Experimental measurements in a microwave anechoic chamber validate the consistent performance of the metasurfaces in reducing the scattering cross section.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Menglan Lin, Jinxing Li, Dawei Zhang, Badreddine Ratni, Jianjia Yi, Peihan Qi, Kuang Zhang, Andre de Lustrac, Shah Nawaz Burokur
Summary: Superoscillation is an extraordinary phenomenon that can generate small-size focusing spots, which have potential applications in super-resolution focusing and imaging. In this study, a reconfigurable near-field focusing reflector based on the superoscillation principle is elaborated, where the focal position and operation frequencies can be modulated by the dynamic phase-compensation mechanism of an engineered metamirror. Experimentally measured in an anechoic chamber, the fabricated metamirror platform demonstrates subdiffraction near-field focusing and flexible manipulation of focal distances and frequencies. The proposed focusing reflector holds great integration potential in imaging devices due to its tunability, high resolution, and nonnarrowband features.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Yueyi Yuan, Qun Wu, Shah Nawaz Burokur, Kuang Zhang
Summary: This article introduces a chirality-assisted phase technique that can impose separate phase profiles in two circular polarization preserving channels under LHCP and RHCP illuminations. A multi-layered meta-atom is used to implement this scheme, and a polyatomic unit composed of four separate chiral meta-atoms is proposed to suppress polarization conversion. A dual-holographic metasurface is designed to project characters L and R in two co-polarized fields, with little energy distributed in corresponding cross-polarized fields. Experimental measurements show good agreement with theoretical predictions, demonstrating the potential of this mechanism in multifunctional antenna design and wireless communications.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)
Article
Environmental Sciences
Yi Yuan, Tong-Yu Peng, Guang-Yuan Yu, Zhao Zou, Meng-Ze Wu, Ruofei Zhu, Shuang Wu, Zi Lv, Su-Xin Luo
Summary: Copper is an essential trace element in metabolism, and this study aimed to explore its relationship with reproductive health. The study analyzed data from the NHANES database and found that women with gestational diabetes had higher serum copper levels. Women with higher copper levels and smoking habits were more likely to deliver overweight babies. Serum copper levels were also positively associated with sex hormone-binding globulin (SHBG) levels.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Menglan Lin, Badreddine Ratni, Peihan Qi, Jianjia Yi, Andre de Lustrac, Shah Nawaz Burokur
Summary: The flexible generation and modulation of bottle beams using a reconfigurable metamirror in the frequency range of 8.5 to 9.5 GHz is investigated. Each meta-atom on the metamirror contains a varactor diode, enabling a nearly 2π phase coverage by varying the external bias voltage. Different configurations of bottle beams with distinct radii are realized based on the caustic theory. The experimental results agree well with numerical simulations, suggesting the potential of this flexible bottle beam generator in microwave near-field applications.
ADVANCED PHOTONICS RESEARCH
(2023)
Article
Engineering, Electrical & Electronic
Francois Villamizar, Cedric Martel, Fabrice Boust, Shah Nawaz Burokur
Summary: In this work, sparse metasurfaces are designed to reduce the electromagnetic scattering of metallic cylinders. By optimizing the load impedance distribution, the scattering cross section (SCS) of the cylinders can be considerably reduced. Experimental measurements are in good agreement with the numerical simulations, verifying the consistent performance of the metasurfaces in SCS reduction.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Guanyu Shang, Guoyu Li, Chunsheng Guan, Weisong Zhao, Haoyu Li, Kuang Zhang, Jian Liu, Qun Wu, Xue-Mei Ding, Shah Nawaz Burokur, Xumin Ding
Summary: This paper reports a bifunctional microwave metasurface with an asymmetric bidirectional transmission phase that can be controlled. The metasurface is composed of bilayered double-arrow-shaped structures sandwiching a subwavelength metal grating. The metasurface breaks the symmetry and realizes different functions for opposite propagation directions, such as deflection and focusing, orbital angular momentum (OAM) mode generation, and holographic imaging. The experimental results suggest that the proposed metasurface can be further exploited for various applications.
ADVANCED PHOTONICS RESEARCH
(2023)
Article
Engineering, Electrical & Electronic
Usman Qureshi, Muhammad Umar Khan, Mohammad S. Sharawi, Shah Nawaz Burokur, Raj Mittra
Summary: This paper presents a broadband graded index all-dielectric (GID) lens that enables field decorrelation and decoupling of closely spaced wideband multiple-input-multiple-output (MIMO) antenna elements. The proposed technique achieves a reduction in correlation coefficient rho by tilting the individual antenna element radiation patterns and suppressing surface wave propagation inside the antenna substrate using the concept of transformation electromagnetics (TE). Simulated and measured results validate the effectiveness of the proposed technique, which provides reduced rho for both isotropic and non-isotropic propagation environments and enhanced port isolation without reducing the fractional bandwidth (FBW).
IEEE OPEN JOURNAL OF ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Lina Zhu, Ruoyu Dai, Jianjia Yi, Xiaoming Chen, Zhen Tan, Menglan Lin, Shah Nawaz Burokur
Summary: In this letter, a bifunctional metagrating that can differently allocate energy of distinct diffraction orders at the same frequency is designed. By introducing a switchable meta-atom, the diffraction energy can be manipulated, paving the way for efficient real-time programmable functionalities such as wireless power transmission, beam manipulation, and imaging holography.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2023)