Article
Chemistry, Physical
Chenxu Zhao, Huan Wang, Yanyan Bu, Hui Zou, Xiangfu Wang
Summary: This paper introduces the absorption mechanism and design directions of metamaterial perfect absorbers (MPAs), highlighting equivalent impedance matching, plasma resonance, and interference effect as the main absorption mechanisms. The design aspects of MPAs include multiband absorption, ultra-wideband and ultra-narrowband absorption, polarization and angle insensitive absorption, and dynamically controllable tunable absorption.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(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
Zhengjie Guo, Xiaoyu Liu, Caixia Li, Jiefeng Li, Haotian Cai, Ming Fu, Dawei He, Yongsheng Wang
Summary: Broadband optical absorbers are essential for various applications such as solar energy harvesting, thermal emitters, and infrared detection. Metallic truncated nanocones demonstrated ultra-broadband absorption in the UV-visible-NIR spectral region, with an average absorptivity of 96.11% and continuous high absorptivity in a wide wavelength range. The interaction of different resonances in the truncated nanocones contributes to the high absorption performance, with potential for practical applications and fabrication feasibility.
Article
Engineering, Multidisciplinary
Jun Zhu, Changsong Wu
Summary: Most amino acid detection techniques currently have limitations in equipment operation procedures, detection periods, and accuracy, which do not meet the requirement of high-standard amino acid identification in the food industry. This study proposes a novel detection and identification method based on the different refractive indices of aqueous amino acid solutions. Experimental results show that this method can accurately identify amino acids, providing an important reference for further development of metamaterial sensors.
Article
Materials Science, Multidisciplinary
Yujing Ran, Zhaotan Jiang, Zhi Wang
Summary: In this study, all-nitride perfect broadband metamaterial absorbers were designed and studied, which achieve high absorption performance within specific wavelength ranges and exhibit polarization independence and high absorption at large incidence angles. These all-nitride absorbers have promising potential in related applications.
RESULTS IN PHYSICS
(2022)
Article
Optics
Xudong Bai, Rui Yang
Summary: We demonstrate the perfect trapping of electromagnetic fields over multi-band frequencies through all-dielectric terahertz absorbers using water graphene cascade metamaterials. The water coating layer enhances high-order Fabry-Porot resonant absorbing modes, achieving more than 8 absorbing peaks with absorptions exceeding 99% below 3 THz. The integration with thermal controlled vanadium dioxide allows for easy resetting of the multiple perfect absorbing bands, and the reconfigurable characteristics of graphene enable dynamic tuning of absorbing frequencies.
Article
Optics
Hui Mei, Wenqiang Yang, Dou Yang, Li Yao, Yongtao Yao, Chao Chen, Laifei Cheng
Summary: The recent utilization of metamaterial design has prompted a new stage of research on electromagnetic metamaterial absorbers (EMMAs), enabling integration of structure and function. Progress is focused on summarizing developments in structural design, absorbing performance, fabrication methods, and EMMA mechanisms. Future studies are expected to focus on shortcomings in current research and developing trends.
OPTICS AND LASER TECHNOLOGY
(2022)
Review
Computer Science, Information Systems
Majid Amiri, Farzad Tofigh, Negin Shariati, Justin Lipman, Mehran Abolhasan
Summary: Future IoT devices are expected to be fully ubiquitous and autonomous, requiring completely wireless operation and accurate sensing. Metamaterial perfect absorbers (MPAs) have the potential to improve efficiency and applications of IoT devices.
IEEE INTERNET OF THINGS JOURNAL
(2021)
Article
Multidisciplinary Sciences
Xin-Xian Wu, Cheng-Yu Lu, Tsung-Yu Huang
Summary: In this study, an oblique-flat-sheet metamaterial perfect absorber (MPA) was designed to enhance the sensitivity of a biosensor. By simulating and conducting experiments, it was confirmed that the MPA had higher sensitivity.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Multidisciplinary
Wei Chen, Yuan Gao, Yuyang Li, Yiming Yan, Jun-Yu Ou, Wenzhuang Ma, Jinfeng Zhu
Summary: This research develops a deep learning model based on metamaterial spectrum transformer (MST) for the powerful design of high-performance broadband solar metamaterial absorbers (SMA). The model divides the optical spectrum of metamaterial into N patches, overcoming the problem of overfitting in traditional deep learning and greatly enhancing the learning capability. A flexible design tool is also developed for real-time on-demand design of metamaterials with various optical functions.
Article
Optics
Fulong Yang, Chenyang Zhang, Aihua Zhang, Xiaoqing Zhu, Huan Xu, Dayu Wang
Summary: This paper proposes a thermally tunable broadband metamaterial absorber based on ionic liquids at the microwave band, which exhibits distinct modulation characteristics in different frequency bands. Numerical simulations demonstrate that the absorption decreases with temperature in the low-frequency band and increases in the high-frequency band. The absorber shows good broadband absorption even without a metal substrate. Experimental results confirm the validity of the proposed structure. The simple design and wide frequency tuning range of the absorber suggest great potential applications in sensors, detection, and frequency-selective thermal emitters.
Article
Chemistry, Physical
Yang Wang, Xuefei Xuan, Shenbing Wu, Lu Zhu, Jiabing Zhu, Xiaobo Shen, Zhipeng Zhang, Changjun Hu
Summary: This study presents a reverse design method for designing and analyzing metamaterial absorbers. The designed narrowband and wideband metamaterial absorbers demonstrate high absorption performance. The physical mechanisms of wideband high absorption are also analyzed.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Optics
Yu Zhou, Zheng Qin, Zhongzhu Liang, Dejia Meng, Haiyang Xu, David R. Smith, Yichun Liu
Summary: Broadband metamaterial absorbers with high absorption, ultrathin thickness and easy configurations are researched and demonstrated in this paper, paving the way for enhancing the optical performance in applications of infrared thermal emitters, imaging and photodetectors.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Fuming Yang, Zhongzhu Liang, Xiaoyan Shi, Xiqing Zhang, Dejia Meng, Rui Dai, Shoutao Zhang, Yan Jia, Ningte Yan, Sixuan Li, Zihan Wang
Summary: Broadband metamaterial absorbers are crucial in LWIR detection. Instead of using metallic resonators, we propose two absorbers that utilize dielectric resonators, achieving a higher absorptivity in the 8-14 μm range. By replacing metal with germanium (Ge) resonators, we achieved a broadband absorption with an average absorptivity of 93.1%. To enhance the absorptivity further, we inserted a Si3N4 layer into the Ge layer, increasing the absorption bandwidth to 7.96-14.16 μm with an average absorptivity of 96.5%. Compared to metallic resonators, dielectric resonators make fabrication easier.
RESULTS IN PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Wanqiao Huang, Zhenghou Zhu
Summary: This paper proposes a new design method for metamaterial absorbers composed of magnetic composites with a periodic structure. The absorber achieves an effective absorption bandwidth of 13.4 GHz, from 4.6 GHz to 18 GHz, with a thickness of 3.5 mm (0.05 lambda max). Analysis of the electric field distribution and surface current reveals absorption peaks at 6.1 GHz and 10.8 GHz, with reflection losses of -20 dB and -15.6 dB, respectively. Actual samples were prepared and their reflection losses were measured, confirming the simulation results.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Optics
B. B. Oner, K. Ustun, H. Kurt, A. K. Okyay, G. Turhan-Sayan
Article
Physics, Applied
Kadir Ustun, Gonul Turhan-Sayan
JOURNAL OF APPLIED PHYSICS
(2016)
Article
Optics
Serdar Kocaman, Gonul Turhan Sayan
Article
Optics
Kadir Ustun, Gonul Turhan-Sayan
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2017)
Proceedings Paper
Remote Sensing
Mesut Dogan, Omer Yesilyurt, Gonul Turhan-Sayan
DETECTION AND SENSING OF MINES, EXPLOSIVE OBJECTS, AND OBSCURED TARGETS XXIII
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
M. Dogan, S. Gumus, G. Turhan-Sayan
2017 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA)
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
Mesut Dogan, Gonul Turhan-Sayan
PROCEEDINGS OF 2017 7TH IEEE INTERNATIONAL SYMPOSIUM ON MICROWAVE, ANTENNA, PROPAGATION, AND EMC TECHNOLOGIES (MAPE)
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
Kadir Ustun, Gonul Turhan-Sayan
2017 IV INTERNATIONAL ELECTROMAGNETIC COMPATIBILITY CONFERENCE (EMC TURKIYE)
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
Mesut Dogan, Gonul Turhan-Sayan
2017 IV INTERNATIONAL ELECTROMAGNETIC COMPATIBILITY CONFERENCE (EMC TURKIYE)
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
Mesut Dogan, Gonul Turhan-Sayan
2017 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING
(2017)
Proceedings Paper
Acoustics
Mesut Dogan, Gonul Turhan-Sayan
2017 25TH SIGNAL PROCESSING AND COMMUNICATIONS APPLICATIONS CONFERENCE (SIU)
(2017)
Proceedings Paper
Nanoscience & Nanotechnology
Serdar Kocaman, Gonul Turhan Sayan
QUANTUM DOTS AND NANOSTRUCTURES: GROWTH, CHARACTERIZATION, AND MODELING XIV
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
K. Ustun, G. Turhan-Sayan
2016 10TH INTERNATIONAL CONGRESS ON ADVANCED ELECTROMAGNETIC MATERIALS IN MICROWAVES AND OPTICS (METAMATERIALS)
(2016)
Proceedings Paper
Telecommunications
Pinar Yasar-Orten, Gonul Turhan-Sayan, Pinar Yasar-Orten
2015 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING
(2015)