Article
Chemistry, Multidisciplinary
Tong Wu, Quan Xu, Xueqian Zhang, Yuehong Xu, Xieyu Chen, Xi Feng, Li Niu, Fan Huang, Jiaguang Han, Weili Zhang
Summary: Light is a complex vectorial field characterized by its amplitude, phase, and polarization properties. This study proposes a new metasurface paradigm that can manipulate the amplitudes and phases of two spin components using only two different meta-atoms based on the interference effect. Two five-channel meta-holograms for imaging and information encryption are designed and experimentally characterized to demonstrate the potential of the interference method in achieving compact complex and multifunctional meta-devices.
Article
Materials Science, Multidisciplinary
Oren Goldberg, Rivka Gherabli, Jacob Engelberg, Jinan Nijem, Noa Mazurski, Uriel Levy
Summary: In this work, a high-index dielectric material called silicon rich nitride (SRN) is proposed for the construction of metasurfaces. The study demonstrates the theoretical and experimental realization of a Huygens metasurface operating in the visible range using SRN. The material offers advantages such as high refractive index, CMOS compatibility, low loss, and tunability of refractive index. This research opens up new possibilities for metasurface design using SRN as a potential alternative to widely used TiO2.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Behrad Rezaee Rezvan, Mohammad Yazdi, Seyed Ehsan Hosseininejad
Summary: This paper presents an analytical design procedure for multibeam metasurfaces with multiple feeds. The required amplitude and phase distributions on the metasurface plane are theoretically derived without any optimization process, considering arbitrary number of input and output beams. A filtering procedure is proposed to effectively produce the desired output pattern and resolve the challenges posed by the limitation of using only passive metasurfaces. The design method is validated through a reflective metasurface with three input beams and sixteen output beams, demonstrating its potential for efficient design of metasurfaces for various applications.
ADVANCED THEORY AND SIMULATIONS
(2023)
Article
Mechanics
Guangyuan Su, Yunhao Zhang, Yongquan Liu, Tiejun Wang
Summary: Elastic metasurfaces have potential to manipulate elastic waves, but current technologies are limited in wave control. This study introduces a new generation of elastic metasurfaces incorporating amplitude discontinuities, allowing for more flexible wave manipulation. Experimental validation on two amplitude-shift metasurfaces for flexural waves demonstrates successful wave control.
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
(2021)
Article
Chemistry, Multidisciplinary
Ye Tian, Shuyu Zuo, Qian Lv, Guanjun Yin, Jianzhong Guo
Summary: This paper proposes a theoretical design approach for zero-thickness broadband holograms based on acoustic sieve metasurfaces (ASMs), providing new possibilities for acoustic holography applications.
APPLIED SCIENCES-BASEL
(2022)
Article
Optics
Kyosik Min, Dabin Min, Jae-Hyeung Park
Summary: WignerLFH is a method that utilizes Wigner inverse transform to synthesize the complex optical field of three-dimensional objects without the need for a depth map. It offers higher resolution compared to traditional hogel-based methods and allows for complete control over the carrier wave. However, the method's requirement for an orthographic projection geometry limits its application to real scene and restricts the depth range. In this paper, we propose a new technique that uses perspective projection geometry to overcome these limitations and enable the synthesis of holograms for large three-dimensional objects at far distances. Numerical simulations and optical experiments validate the feasibility of our proposed technique.
OPTICS COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Dapu Pi, Juan Liu
Summary: The proposed reference light wave multiplexing scheme increases the information capacity of computer-generated holograms by generating holograms with different reference light waves and superimposing them together. The use of a modified Gerchberg-Saxton algorithm enhances image quality, allowing for reconstruction of different images with corresponding reference light waves. Numerical simulations and optical experiments demonstrate the feasibility of the scheme, showing successful reconstruction of multiple images with a single multiplexed hologram.
APPLIED SCIENCES-BASEL
(2021)
Review
Chemistry, Multidisciplinary
Evgenii Y. Zlokazov, Vasilii V. Kolyuchkin, Dmitrii S. Lushnikov, Andrei V. Smirnov
Summary: The article discusses the use of computer-generated holograms (CGH) in security printing, particularly focusing on creating informative memory marks for automatic information retrieval in identification, copyrighting, and authentication control. It provides an overview of the theoretical basics and applications of CGH and delves into specific technical solutions like printed holograms, smart verification, and holomemory. The article presents interaction schemes between security printing manufacturers, citizens as potential consumers, and regulatory government agencies.
APPLIED SCIENCES-BASEL
(2022)
Article
Optics
YingYing Bai, ZhiYu Zhang, TianBao Chen, RuoQiu Wang, HongDa Wei, XueFeng Zeng, XueJun Zhang
Summary: The emergence of large-aperture telescopes has led to an increased demand for testing and alignment of large optical systems. Computer-generated holograms (CGHs) have proven to be an effective method for aspheric optical testing and alignment. However, the current lithography capability limits the maximum size of CGHs to 6 to 9 inches. Stitching technology shows promise for creating larger-sized CGHs.
OPTICS AND LASERS IN ENGINEERING
(2022)
Article
Optics
Alejandro Velez-Zea, John Fredy Barrera-Ramirez
Summary: In this work, we propose a method for generating double phase multiplane holograms using a modified global Gerchberg Saxton algorithm. We demonstrate that this approach offers superior accuracy compared to the conventional algorithm in some scenarios and enables the trade-off between reconstruction quality and crosstalk. Numerical and experimental results support the effectiveness of our proposal.
OPTICS AND LASERS IN ENGINEERING
(2023)
Article
Optics
Ren Noguchi, Kohei Suzuki, Yoshiki Moriguchi, Minoru Oikawa, Yuichiro Mori, Takashi Kakue, Tomoyoshi Shimobaba, Tomoyoshi Ito, Naoki Takada
Summary: The study presents an efficient calculation method that maintains a high computational speed while achieving real-time gradation-expressible electroholography. By utilizing a multi-GPU cluster system and the BW-CGH method, the reconstruction of three-dimensional objects with gradation expression was successfully achieved, showcasing a real-time electroholographic 3D video containing approximately 180,000 points.
CHINESE OPTICS LETTERS
(2021)
Article
Optics
Jung-Ping Liu, Chen-Ming Tsai
Summary: This paper explores an algorithm for generating high-quality BCGH and proposes the simulated-annealing binary search (SABS) algorithm. Compared to traditional simulated annealing, the SABS algorithm can produce BCGHs with better quality.
Article
Optics
Zhulin Yao, Xiaowei Li, Zhipeng Wang, Zhentao Xu, Andong Wang, Lingling Huang, Jiangang Lu, Honglei Wang
Summary: The method demonstrated the fabrication of computer-generated holograms using a femtosecond Bessel beam on transparent glass, allowing for flexible adjustment of the phase profile to generate desired patterns by changing relative positions. Twin images were eliminated through high-level modulation.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Yingying Bai, Zhiyu Zhang, Ruoqiu Wang, Tianbao Chen, Xu Wang, Xuejun Zhang
Summary: The study investigates and experimentally verifies the measurement errors of DOCs with small-period CGHs, showing that imperfections of the scalar approximation in CGHs cannot be ignored. Developing rigorous evaluation methods to enhance the measurement accuracy of CGHs is of significant practical importance.
APPLIED SCIENCES-BASEL
(2021)
Article
Computer Science, Information Systems
Chuying Yu, Xiaowei Li, Shaoyuan Xu, Jianzhong Li
Summary: This novel image encryption scheme combines position shuffling and pixel value changes using computer generated hologram (CGH) and multiple chaotic systems. It utilizes a scrambling algorithm based on Chen's chaotic system and logistic maps, followed by Burch's coding method to create the encrypted image. The pixel values of the encrypted CGH are altered by a sine map to withstand statistical analysis attacks, showcasing high security level and robustness against various attacks.
Article
Engineering, Electrical & Electronic
Jun Wei Wu, Zheng Xing Wang, Lei Zhang, Qiang Cheng, Shuo Liu, Shuang Zhang, Ji Ming Song, Tie Jun Cui
Summary: This study presents a transmissive metasurface design for achieving polarization-dependent field distributions in 3-D space with both high resolution and efficiency. The design utilizes dyadic Green's function (DGF) as the rigorous propagator and is successfully validated through full-wave simulations and experimental measurements. The design demonstrates a feasible and simple route for field synthesis in real-world applications requiring high resolution, high efficiency, and 3-D scenarios.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Wankai Tang, Ming Zheng Chen, Xiangyu Chen, Jun Yan Dai, Yu Han, Marco Di Renzo, Yong Zeng, Shi Jin, Qiang Cheng, Tie Jun Cui
Summary: This article develops free-space path loss models for RIS-assisted wireless communications in different scenarios by studying the physics and electromagnetic nature of RISs, validated through extensive simulation results and experimental measurements. The models reveal the relationships between the path loss and various factors, paving the way for further theoretical studies and practical applications in the field.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Xin Ge Zhang, Ya Lun Sun, Qian Yu, Qiang Cheng, Wei Xiang Jiang, Cheng-Wei Qiu, Tie Jun Cui
Summary: The smart Doppler cloak is an invisible device that operates under broadband and full polarization conditions, able to adaptively respond to the velocity of moving objects, canceling different Doppler shifts in real time without human intervention.
ADVANCED MATERIALS
(2021)
Article
Physics, Applied
Cheng Zhang, Wen Kang Cao, Li Ting Wu, Jun Chen Ke, Yun Jing, Tie Jun Cui, Qiang Cheng
Summary: Acoustic metasurfaces have revolutionized control over acoustic waves, showcasing a reconfigurable active acoustic metalens that can scan the focus along arbitrary trajectories in free space. This technology holds great promise for applications such as acoustic levitation and tweezers.
APPLIED PHYSICS LETTERS
(2021)
Article
Physics, Multidisciplinary
Wen Hua Gao, Mao Chen, Qiang Cheng, Rui Wen Shao, Jing Cheng Liang, Yuan Gao, Tie Jun Cui
Summary: A novel X-band 1-bit reconfigurable transmitarray with excellent polarization conversion is proposed, achieving phase difference of cross-polarized transmitted waves and high transmittance. It can generate multiple beams by controlling different coding sequences, with low transmission loss, wideband phase control, and easy integration, suitable for applications in radar and wireless communications.
NEW JOURNAL OF PHYSICS
(2021)
Article
Optics
Cheng Zhang, Sheng Yin, Chang Long, Bo Wen Dong, Daping He, Qiang Cheng
Summary: This study introduces a hybrid metamaterial absorber composed of graphene films and conventional magnetic absorbing materials, designed for wideband absorption performance at ultra-low frequencies. Experimental results validate the effectiveness of the design method, highlighting its lightweight and environmentally adaptable engineering value.
Article
Materials Science, Multidisciplinary
Qiang Xiao, Qian Ma, Tao Yan, Liang Wei Wu, Che Liu, Zheng Xing Wang, Xiang Wan, Qiang Cheng, Tie Jun Cui
Summary: Metasurface holography utilizes orbital-angular-momentum of electromagnetic waves for encryption, using two coding information metasurfaces to achieve this purpose. Accurate decoding is only possible under specific beam and polarization states, enhancing security.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Xiang Wan, Chao Kun Xiao, He Huang, Qiang Xiao, Wei Xu, Jia Wei Wang, Zi Ai Huang, Qiang Cheng, Shi Jin, Tie Jun Cui
Summary: User tracking and wireless digital transmission can be achieved simultaneously using a programmable metasurface aperture. By programming the binary units of the metasurface, waves can be steered and digital signals can be transmitted. Experimental results show promising application prospects of this integrated approach.
ADVANCED MATERIALS TECHNOLOGIES
(2021)
Article
Engineering, Electrical & Electronic
Lei Zhang, Ming Zheng Chen, Wankai Tang, Jun Yan Dai, Long Miao, Xiao Yang Zhou, Shi Jin, Qiang Cheng, Tie Jun Cui
Summary: Digitally programmable metasurfaces can be used for wireless communication to implement both space- and frequency-division multiplexing, encoding messages through multiple channels to transmit directly to different users at different locations simultaneously without the need for digital-to-analogue conversion and mixing processes. Using a dual-channel wireless communication system based on a two-bit space-time-coding digital metasurface, two different pictures were transmitted to two users simultaneously in real time.
NATURE ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Chen Xi Huang, Jingjing Zhang, Qiang Cheng, Tie Jun Cui
Summary: Polarization modulation (PoM) offers additional freedom for carrier wave modulation and enhances physical-layer security in wireless communication. A prototype of PoM wireless communications based on a digital coding metasurface has been demonstrated, showing potential for simplified multichannel communications and increased flexibility in antenna operation.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Haotian Wu, Xinxin Gao, Shuo Liu, Qian Ma, Hao Chi Zhang, Xiang Wan, Tie Jun Cui
Summary: A new mechanism for controlling electromagnetic wave flow based on spatiotemporal metasurface assisted with parity-time (PT) symmetric modulations is proposed and experimentally verified in the microwave regime. The generated spin-momentum coupling can be flexibly switched in real time, providing a powerful platform for exploring physical effects that are hard to realize in traditional photonic topological systems.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Yu Han, Xiao Li, Wankai Tang, Shi Jin, Qiang Cheng, Tie Jun Cui
Summary: This paper investigates the performance of a dual-polarized RIS-assisted mobile communication system under practical polarization imperfections. An upper bound of the ergodic spectrum efficiency is provided, and an approximate optimal RIS phase shift design is proposed based on this bound.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2022)
Article
Computer Science, Information Systems
Xiangyu Chen, Jun Chen Ke, Wankai Tang, Ming Zheng Chen, Jun Yan Dai, Ertugrul Basar, Shi Jin, Qiang Cheng, Tie Jun Cui
Summary: The study introduces a MIMO transmission architecture based on dual-polarized reconfigurable intelligent surface (RIS), which improves integration of transmission systems compared to previous works and is validated by experimental results. This architecture offers a promising solution for low-cost ultra-massive MIMO in future networks.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Haotian Wu, Hao Hu, Xixi Wang, Zhixia Xu, Baile Zhang, Qi Jie Wang, Yuanjin Zheng, Jingjing Zhang, Tie Jun Cui, Yu Luo
Summary: Unlike conventional topological materials, higher-order topological materials support topological states at boundaries of boundaries. This study reports the experimental realization of a higher-order thermal topological insulator in a generalized 2D diffusion lattice. The topological corner states for thermal diffusion were observed in the bandgap of diffusion rate, and their stability was demonstrated in the presence of amorphous deformation. This work opens the door for future thermal management with topological protection beyond 1D geometries.
ADVANCED MATERIALS
(2023)
Review
Engineering, Electrical & Electronic
Zhixia Xu, Yi Wang, Siyuan Liu, Jitong Ma, Shaojun Fang, Haotian Wu
Summary: Electromagnetically induced transparency (EIT) originates from destructive interference between quantum states of atoms and molecules, resulting in a narrow transparent peak in the opaque band. This phenomenon can also be achieved in classical systems, known as analogs of EIT, which exhibit high-quality resonant peaks with potential applications in highly sensitive sensors. This article provides a brief review of EIT-like metamaterials, including mathematical formulation, specific designs and applications, dynamic modulations, and future research directions.
IEEE SENSORS JOURNAL
(2023)
