Article
Nanoscience & Nanotechnology
Limin Ma, Han Xu, Zhengang Lu, Jiubin Tan
Summary: This study proposes a graphene-based microwave absorber that combines broadband absorption, high optical transparency, and insensitivity to incident angle. The absorber achieves a 90% absorption bandwidth of 10 GHz and can be tuned by adjusting the thickness of the dielectric layer. It offers a viable solution for effectively integrating broadband and near-unity microwave absorption with high optical transparency.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Electrical & Electronic
Mucahit Alcep, Fikret Tokan
Summary: This paper proposes an innovative method to eliminate internal reflections at the lens/air boundary of radar sensors using dielectric lenses made of dense materials. Instead of traditional broadband matching techniques, an alternative matching technique compatible with today's 3D printing technology is introduced. This simple, cost-effective matching technique involves using the material of the lens itself, and has been successfully confirmed through simulations and experiments.
IEEE SENSORS JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Samira Mehrabi, Rana Muhammad Hasan Bilal, Muhammad Ashar Naveed, Muhammad Mahmood Ali
Summary: In this study, an ultra-broadband nanostructured metamaterial absorber (NMMA) with high absorption rate in the wavelength range of 200-3000 nm and immune to incident angles is proposed. The NMMA exhibits large operational bandwidth, miniaturized structure, and thermal stability, making it suitable for applications in thermal emission, solar thermophotovoltaics, and other opto-electronic devices.
OPTICAL MATERIALS EXPRESS
(2022)
Article
Engineering, Electrical & Electronic
Anil Kumar Nayak, Igor M. Filanovsky, Kambiz Moez, Amalendu Patnaik
Summary: This letter presents a coaxial transmission line-to-substrate integrated waveguide (CT-SIW) transition using an aperture-coupling approach. The method achieves increased bandwidth and reduced insertion loss by attaching two coaxial line supports with coupling apertures at the ends of the substrate integrated waveguide (SIW).
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Jianzhong Chen, Yaqi Wei, Yutong Zhao, Lei Lin, Liang Li, Tao Su
Summary: In this study, a novel transparent and broadband diffusion metasurface composed of digital coding elements is proposed. Different phase states are generated by the coding unit with a symmetric circular quasi-Minkowski closed-loop shape. The top layer of the coding elements adopts metal rings with ultrathin linewidth to enhance optical transmittance, while the bottom layer adopts hexagonal ring mesh metallic film with high electromagnetic interference (EMI) shielding effectiveness. The optimized random distribution of coding elements can realize diffusion patterns with numerous uniform grating lobes and suppress the backward peak energy level. The experimental results demonstrate significant scattering reduction and good performance for oblique incident waves in a broadband range, making this transparent diffusion metasurface suitable for applications such as windows in the visible frequency range, imaging, and communications.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Review
Chemistry, Multidisciplinary
Kaiyang Cheng, Yuancheng Fan, Weixuan Zhang, Yubin Gong, Shen Fei, Hongqiang Li
Summary: Analog optical computing has advantages over digital computing, and metamaterials have accelerated its progress. Research focuses on classical mathematical operations, developments based on different physical mechanisms, and optical simulating of quantum algorithms.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Multidisciplinary
Jing Xu, Yuancheng Fan, Xiaopeng Su, Jing Guo, Jiaxing Zhu, Quanhong Fu, Fuli Zhang
Summary: The optically transparent metamaterial microwave absorber shows wide operation angle, high absorptivity, and potential applications in various fields.
Review
Physics, Multidisciplinary
Jing Xu, Ruisheng Yang, Yuancheng Fan, Quanhong Fu, Fuli Zhang
Summary: The incorporation of nematic liquid crystal in metamaterials enables the tunability of electromagnetic response, with the anisotropic nature of liquid crystal playing a crucial role in influencing the resonant frequency. By carefully designing and infiltrating liquid crystal, the operation frequency of metamaterials can be dynamically modulated, resulting in remarkable red/blue-shift. Recent developments and novel applications of liquid crystal-based metamaterials are also investigated and highlighted.
FRONTIERS IN PHYSICS
(2021)
Article
Multidisciplinary Sciences
Yuancheng Fan, Xuan He, Fuli Zhang, Weiqi Cai, Chang Li, Quanhong Fu, Nataliia Sydorchuk, Sergey L. Prosvirnin
Summary: This article demonstrates enhanced nonlinear frequency-agile response and hysteresis tunability in a Fano-resonant hybrid metamaterial, where a ceramic cuboid is electromagnetically coupled with a metal cut-wire structure to excite high-Q Fano-resonant mode. The significant nonlinear response of the ceramic cuboid can be employed for realization of tunable metamaterials, with the trapped mode with an asymmetric Fano-like resonance beneficial for achieving notable nonlinear modulation on the scattering spectrum. The nonlinear tunability of both the ceramic structure and the ceramic/metal hybrid metamaterial extends the operation band of metamaterials, providing possibility in practical applications with enhanced light-matter interactions.
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
Chemistry, Multidisciplinary
Wei Zhu, Yuancheng Fan, Ruisheng Yang, Guangzhou Geng, Quanhong Fu, Changzhi Gu, Junjie Li, Fuli Zhang
Summary: This article demonstrates silicon-based metasurfaces capable of generating versatile wavefronts under different polarization light incidence at visible wavelengths, with great potential for applications in integrated functional optical devices.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Physics, Multidisciplinary
Zhichen Li, Jing Xu, Lin Zhang, Yiwen Li, Ruisheng Yang, Quanhong Fu, Fuli Zhang, Yuancheng Fan
Summary: Massive applications of microwave technology have caused electromagnetic pollution, which interferes with communication systems. Optically transparent metasurface absorbers are a promising solution for this issue.
ANNALEN DER PHYSIK
(2023)
Article
Optics
Ruisheng Yang, Yuancheng Fan, Wei Zhu, Chuanjie Hu, Songnan Chen, Heng Wei, Weijin Chen, C. T. Chan, Qian Zhao, Ji Zhou, Fuli Zhang, Cheng-Wei Qiu
Summary: Optical wavefront engineering is essential for the development of next-generation integrated photonic devices. Recent advances in metagratings have provided an efficient solution for beam steering without the need for phase modulation or impedance profiles. All-dielectric metagratings fabricated with a complex lattice structure demonstrate unitary diffraction efficiency in anomalous terahertz beam reflections, making them promising for high-performance functional devices.
LASER & PHOTONICS REVIEWS
(2023)
Editorial Material
Chemistry, Analytical
Yuancheng Fan, Benfeng Bai, Yusheng Lin
Article
Nanoscience & Nanotechnology
Jiameng Nan, Yujing Zhang, Yu Xie, Zhichen Li, Ruisheng Yang, Jing Xu, Quanhong Fu, Fuli Zhang, Yuancheng Fan
Summary: The authors propose and demonstrate a graphene hybrid metasurface for dual-band extraordinary electromagnetic transmission (EET). The metasurface consists of two graphene/metal hybrid resonators with EET properties, which can be tuned by changing the bias voltage on the graphene. Furthermore, the transmission amplitude and operating frequency band of EET can be controlled by changing the relative position and coupling of the two graphene hybrid resonators. This design strategy is promising for applications based on active EM or optical modulations.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zeyong Wei, Yunlong Zhao, Yujing Zhang, Weiqi Cai, Yuancheng Fan, Zhanshan Wang, Xinbin Cheng
Summary: We demonstrate an electrically biased reconfigurable chiral metasurface for controlling polarization conversion and asymmetric transmission in a broadband manner. The metasurface is constructed with coupled three-layer complementary split-ring resonator (CSRR) arrays and tunable electronic components, allowing dynamic control of reconfigurable chiral coupling by adjusting the external voltage. Both experiments and simulations show that the polarization conversion can be continuously tuned over a wide frequency range. The reconfigurable metasurface also exhibits asymmetric transmission for polarized waves in a broadband range. This study confirms the effectiveness of the proposed reconfigurable chiral metasurface as a strategy for multi-functional polarization manipulation.
NANOSCALE ADVANCES
(2022)
Article
Chemistry, Multidisciplinary
Yanan Jiao, Jing Lou, Zhaofu Ma, Longqing Cong, Xing Xu, Bin Zhang, Dingchang Li, Ying Yu, Wen Sun, Yang Yan, Shidong Hu, Boyan Liu, Yindong Huang, Lang Sun, Ride Wang, Ranjan Singh, Yuancheng Fan, Chao Chang, Xiaohui Du
Summary: This study demonstrates ultrafast switchable sensing functions using phototunable silicon-based terahertz metasurfaces, which show highly sensitive responses to tiny analytes and can successfully identify colorectal cells in different states.
MATERIALS HORIZONS
(2022)
Article
Materials Science, Multidisciplinary
Ruisheng Yang, Jing Lou, Fuli Zhang, Wei Zhu, Jing Xu, Tong Cai, Quanhong Fu, Hongqiang Li, Yuancheng Fan
Summary: This study proposes and demonstrates the active tunability of toroidal response in terahertz hybrid metasurfaces, showing high efficiency and complete electrical switching over a broadband range. The integration of optoelectronic metasurfaces modulated by biased currents in on-chip optical devices is facilitated, opening up new possibilities for high-performance active photonic applications in smart sensing in the terahertz regime.
ADVANCED PHOTONICS RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Jing Lou, Ruisheng Yang, Jiangang Liang, Ying Yu, Lei Zhang, Chiben Zhang, Tangjing Li, Yuancheng Fan, Fuli Zhang, Guangming Wang, Jun Wang, Tong Cai
Summary: A new strategy is experimentally demonstrated to design THz metasensors with dual-sensitivity of frequency and resonance intensity by coupling the lattice mode to toroidal resonance. The frequency shift and resonance intensity both show exponential growth with the increase in analyte thickness. Comparing the sensing performance between different modes verifies the superiority of the dual-sensitivity property.
ADVANCED PHOTONICS RESEARCH
(2021)
Review
Materials Science, Multidisciplinary
Ruisheng Yang, Jing Xu, Nian-Hai Shen, Fuli Zhang, Quanhong Fu, Junjie Li, Hongqiang Li, Yuancheng Fan
Summary: All-optical processing is a promising strategy for future information systems, with the importance of breaking the diffraction limit of light and achieving effective light manipulation. Subwavelength optical localization allows for freely manipulating light fields, and this review summarizes the development of achieving subwavelength optical localization by exciting toroidal mode in photonic metamaterials.
