Article
Chemistry, Physical
Zhisen Huang, Bo Wang
Summary: This study proposes a metamaterial absorber for broad-spectrum absorption under solar radiation, which has high absorption efficiency, wide absorption bandwidth, and can operate in high temperature environments. It is also insensitive to polarization and incident angles, making it highly applicable in various fields.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Ahmad Musa, Touhidul Alam, Mohammad Tariqul Islam, Mohammad Lutful Hakim, Hatem Rmili, Ahmed S. S. Alshammari, Md. Shabiul Islam, Mohamed S. S. Soliman
Summary: An oblique angle and polarization insensitive metamaterial absorber (MA) consisting of tungsten resonators on a silicon dioxide substrate, coated with additional SiO2 materials, was investigated. The proposed MA offers an average absorption of 92% from 400 nm to 2400 nm with stable oblique incident angles up to 45 degrees. The structure also achieves polarization insensitivity at the entire visible and near-infrared spectrum, making it highly potential for various optical applications.
Article
Optics
Haotuo Liu, Ming Xie, Qing Ai, Zhihao Yu
Summary: This study investigated the slow light effect, magnetic polaritons, and other physical model coupling mechanisms in photonic crystals to construct an efficient solar energy absorber. The simulation study showed that the absorber has a high photothermal conversion efficiency of 96.45% in the 0.3-2.5 μm band, which is 11% higher than traditional designs. Increasing the concentration factor allows the absorber to maintain high efficiency even at high temperatures.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2021)
Article
Chemistry, Multidisciplinary
Didi Song, Kaihua Zhang, Mengdan Qian, Yufang Liu, Xiaohu Wu, Kun Yu
Summary: Solar energy is a clean and renewable energy source that addresses the current energy and climate crisis. Near-perfect broadband solar absorbers can assist in developing an effective solar energy-harvesting system. This study presents a metamaterial perfect absorber design that operates in the ultraviolet to near-infrared spectral range, utilizing a titanium nanoarray coupled to an optical cavity. Numerical simulations demonstrate that the optimal absorber achieves an average absorption efficiency of up to 99.84% in the 200-3000 nm broadband range. It is also shown that the absorber possesses desirable features for practical solar energy absorption and harvesting, such as precision tolerance, polarization independence, and large angular acceptance.
Article
Chemistry, Analytical
Yanlong Meng, Jinghao Wu, Simeng Liu, Yi Li, Bo Hu, Shangzhong Jin
Summary: This paper proposes a near-perfect absorption device based on a cross-shaped titanium nanostructure and a multilayered structure. By utilizing the coupling effect, the device achieves near-perfect absorption in a specific wavelength range.
Article
Optics
Yulian Li, Wei Gao, Li Guo, Zihao Chen, Changjian Li, Haiming Zhang, Jiajia Jiao, Bowen An
Summary: A dynamically tunable ultra-broadband terahertz perfect metamaterial absorber based on vanadium oxide (VO2) has been proposed, with absorption bandwidth greater than 90% from 3.03 to 8.13 THz. By changing the conductivity of VO2, the absorption intensity can be dynamically tuned from 1.47% to 100%, showing significantly improved bandwidth and flexibility compared to previous reports.
Article
Optics
Jiabao Jiang, Yiping Xu, Yuhui Li, Liyong Ren, Fang Chen, Shubo Cheng, Wenxing Yang, Chengju Ma, Ziyi Wang, Xianwen Zhou
Summary: This paper proposes a solar energy absorber with ultra-wideband, near-perfect absorption characteristics. The theoretical investigation shows that the absorber has a bandwidth with absorption rate exceeding 90% of over 3400 nm, with a high average absorption rate and solar spectral weighted absorption efficiency. Additionally, the absorber demonstrates the excitation of various modes to achieve ultra-broadband and near-perfect absorption in visible and infrared wavelengths, showing potential for extensive applications in energy collection and conversion.
Article
Materials Science, Multidisciplinary
Lejia Wu, Zhiwei Li, Wenjie Wang, Shilin Chen, Hao Ruan
Summary: This paper presents a near-ideal ultra-broadband solar absorber based on metal nanowires, which can efficiently absorb solar energy in a wide range of wavelengths. The absorber exhibits polarization-independent, incident angle insensitivity, and high-temperature thermal stability, making it highly significant for solar energy capture and harvesting.
RESULTS IN PHYSICS
(2022)
Article
Physics, Applied
Jinlai Liu, Bingyi Liu, Jie Song, Yongyuan Jiang
Summary: This paper theoretically studies a broadband optical metamaterial absorber composed of SiC hemisphere array, which achieves a high absorptivity of 93.5% in a wide spectrum range from ultraviolet to near-infrared. The structure exhibits good tolerance to incidence angle up to 40 degrees and shows polarization-independent performance. The broadband absorption mechanism is attributed to the magnetic dipole resonance and lattice resonances.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Yu Cheng, Min Xiong, Ming Chen, Shijie Deng, Houquan Liu, Chuanxin Teng, Hongyan Yang, Hongchang Deng, Libo Yuan
Summary: The research on solar absorbers in recent years has made significant breakthroughs in solving the energy crisis, with absorption rates reaching over 98% in various bands and showing promise for solar energy collection and utilization.
Article
Optics
Zhangkun Zhou, Yan Chen, Yonghong Tian, Jian Liang, Wenxing Yang
Summary: This paper presents the design and study of a broadband metamaterial perfect absorber, which exhibits high absorption efficiency over a wide wavelength range. The absorber is polarization-independent and angle-insensitive, making it suitable for solar energy harvesting applications.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Yang Wang, Xue-Fei Xuan, Lu Zhu, Hai-Jun Yu, Qiang Gao, Xian-Lei Ge
Summary: An ultra broadband high-performance metamaterials absorber is designed based on the Fabry-Perot resonance effect and hybrid coupling theory. The absorption band of the absorber is 300 nm-3000 nm, with an average absorption rate exceeding 93%, and its absorptivity is less affected by the polarization angle and incident angle of the incident light.
Article
Chemistry, Multidisciplinary
Jin Hu, Kang Xu, Peilin Huang, Min Wang, Shaolin Xu, Qi-Huo Wei
Summary: Wideband perfect absorbers are in high demand for applications such as efficient photodetection and radiation cooling. This study introduces a novel hierarchical conical metasurface that achieves perfect absorption from visible to far-infrared wavelengths through surface-engraved nanogratings on microcones. The underlying mechanisms, including surface phonon polaritons and light trapping, are examined. This technology shows significant promise for applications in photodetectors.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Ali Elrashidi, Marwa M. Tharwat
Summary: In this work, an ultra-thin plasmonic metamaterial nanostructure absorber has been simulated in the visible and near-infrared regions, showing that the Glass-Ti-SiO2-Ag structure can achieve an absorption bandwidth of 1410 nm with over 90% absorption rate. The optimum dimensions for the Ti-SiO2 cap and the square base unit cell of the silver substrate are found to be 250 nm and 200 nm, respectively.
OPTICAL AND QUANTUM ELECTRONICS
(2021)
Article
Optics
Dongdong Xu, Gaige Zheng, Fenglin Xian, Shengyao Wang, Xiaomin Hua
Summary: An ultra-broadband and angle-insensitive absorber was proposed and demonstrated in the midinfrared atmospheric window, showing high absorption rates and potential applications in various fields. The absorber's absorption properties can be feasibly manipulated via tuning geometrical parameters.
Article
Optics
Yang Zhang, Lei Chen, Yumin Liu, Zhongyuan Yu, Rui Ma, Han Ye
Article
Engineering, Electrical & Electronic
Rui Ma, Yumin Liu, Zhongyuan Yu, Lei Chen, Dong Wu, Li Yu
IEEE PHOTONICS TECHNOLOGY LETTERS
(2017)
Article
Nanoscience & Nanotechnology
Dong Wu, Ruifang Li, Yumin Liu, Zhongyuan Yu, Li Yu, Lei Chen, Chang Liu, Rui Ma, Han Ye
NANOSCALE RESEARCH LETTERS
(2017)
Article
Nanoscience & Nanotechnology
Chang Liu, De Zhang, Yumin Liu, Dong Wu, Lei Chen, Rui Ma, Zhongyuan Yu, Li Yu, Han Ye
NANOSCALE RESEARCH LETTERS
(2017)
Article
Chemistry, Physical
Dong Wu, Yumin Liu, Lei Chen, Rui Ma, Chang Liu, ChunHui Xiang, Ruifang Li, Han Ye
Article
Nanoscience & Nanotechnology
Dong Wu, Liu Yang, Chang Liu, Zenghui Xu, Yumin Liu, Zhongyuan Yu, Li Yu, Lei Chen, Rui Ma, Han Ye
NANOSCALE RESEARCH LETTERS
(2018)
Article
Nanoscience & Nanotechnology
Dong Wu, Liu Yang, Chang Liu, Zenghui Xu, Yumin Liu, Zhongyuan Yu, Li Yu, Lei Chen, Rui Ma, Han Ye
NANOSCALE RESEARCH LETTERS
(2018)
Article
Materials Science, Multidisciplinary
Dong Wu, Chang Liu, Zenghui Xu, Yumin Liu, Zhongyuan Yu, Li Yu, Lei Chen, Ruifang Li, Rui Ma, Han Ye
MATERIALS & DESIGN
(2018)
Article
Optics
Cheng Li, Lei Chen, Euan McLeod, Judith Su
PHOTONICS RESEARCH
(2019)
Article
Optics
Lei Chen, Cheng Li, Yu-Min Liu, Judith Su, Euan McLeod
PHOTONICS RESEARCH
(2019)
Article
Optics
Chang Liu, Lei Chen, Tiesheng Wu, Yumin Liu, Jung Li, Yu Wang, Zhongyuan Yu, Han Ye, Li Yu
PHOTONICS RESEARCH
(2019)
Article
Chemistry, Analytical
Lei Chen, Cheng Li, Yumin Liu, Judith Su, Euan McLeod
Article
Materials Science, Multidisciplinary
Weiguo Shi, Jing li, Mingchao Wang, Lei Chen, Yumin Liu, Han Ye
Summary: A series of ultra-compact reconfigurable power splitters are designed based on the combination of silicon and Sb-based phase change materials. The power splitting ratio between the output channels can be reconfigured through the amorphous and crystalline switching of Sb-based PCMs. Simulation results show that the targeted power splitting ratio can be achieved with acceptable precision.
Proceedings Paper
Engineering, Electrical & Electronic
Lei Chen, Yumin Liu, Zhongyuan Yu
2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2017)
Article
Energy & Fuels
Dong Wu, Yumin Liu, Zenghui Xu, Zhongyuan Yu, Li Yu, Lei Chen, Chang Liu, Ruifang Li, Rui Ma, Jinqiannan Zhang, Han Ye