Article
Computer Science, Information Systems
Binze Ma, Ao Ouyang, Juechen Zhong, Pavel A. Belov, Ravindra Kumar Sinha, Weiping Qian, Pintu Ghosh, Qiang Li
Summary: Dielectric metasurfaces offer efficient detection of microcystin-LR, with high quality factor and sensitivity; specific identification of MC-LR in mixed water with a concentration limit of 0.002 μg/L can be achieved using a specific recognition technique.
Article
Chemistry, Multidisciplinary
Weinan Shi, Fei Fan, Ziyang Zhang, Tianrui Zhang, Shanshan Li, Xianghui Wang, Shengjiang Chang
Summary: A terahertz all-dielectric metasurface with crescent cylinder arrays was demonstrated for chiral drug sensing, showing enhanced sensitivity and the ability to distinguish different chiral molecules in trace amounts. The maximum sensitivity reached 60.42 GHz/mg, and the maximum differentiation was 18.75 GHz/mg. This metasurface provides new paths for the identification of biomolecules in trace amounts.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Multidisciplinary
Lei Zhu, Tai Cheng Li, Jia Huang Huang, Liang Dong, Hao Dong Li, Wen Juan Zhou, Chun Hui Zhao
Summary: This paper proposes a novel all-dielectric metasurface that can control the frequency and phase of electromagnetic waves through encoding, enabling various tunable and efficient radiation functions. The metasurface has been shown theoretically and numerically to achieve different functionalities for normal incidences of plane EM waves, such as frequency control, anomalous deflection, vortex beam generation, and diffuse scattering.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
Jorge A. Garcia, Calin Hrelescu, Xia Zhang, David Grosso, Marco Abbarchi, A. Louise Bradley
Summary: Reversible quasi-guided modes (QGMs) are observed in titanium dioxide (TiO2) metasurfaces fabricated via soft nanoimprint lithography. The porous TiO2 layer allows for tuning the propagation of QGMs, which are strongly dependent on the refractive index of the TiO2 layer.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Wenjie Chen, Ming Li, Wenhao Zhang, Yuhang Chen
Summary: We proposed an all-dielectric metasurface for environmental refractive index sensing based on quasi-BIC, which has enhanced stability, an enlarged detection range, a high Q factor, and relatively high sensitivity. Dual-resonance sensing is achieved with this metasurface, where the interval between the two resonance peaks decreases nearly linearly with the environmental refractive index. Experimental results demonstrate minimized errors caused by environmental and instrumental fluctuations and improved stability. This metasurface holds great potential for applications in refractive index sensing, concentration detection, biomacromolecule identification, and cancerous cell screening.
Article
Materials Science, Multidisciplinary
Xiaoju Zhang, Yue Wang, Zijian Cui, Xiang Zhang, Lisha Yue, Kuang Zhang
Summary: This study proposes two types of all-silicon multi-band THz metasurface sensors, which achieve more than 90% multi-band resonance absorption. The sensing applications of these sensors are demonstrated by detecting different concentrations of saccharides and 2,4-D solutions.
Article
Optics
N. Roostaei, S. M. Hamidi
Summary: An all-dielectric achiral etalon-based metasurface is proposed and experimentally studied for glucose sensing. The metasurface is fabricated using soft nano lithography method and a flow cell channel is designed for glucose sensing. Circular dichroism (CD) spectroscopy is used to investigate glucose sensing based on the metasurface. The simulation results agree well with the experimental results. The proposed sensing chip shows potential for sensing glucose or other biological fluids.
OPTICS COMMUNICATIONS
(2023)
Article
Optics
Lixia Li, Fei Du, Xueyang Zong, Lin Cui, Yufang Liu
Summary: Plasmonic nanostructures have been extensively studied for their potential applications in spectroscopy, sensing, and other fields. However, traditional fabrication methods are costly and time-consuming. In this study, large-area ordered Au nanohole arrays were successfully fabricated using nanosphere lithography, offering spectral isolation and well-defined plasmonic resonances. The system exhibited high sensitivity and could be used for surface sensing, making it promising for low-cost and high-throughput biosensor chips.
Article
Nanoscience & Nanotechnology
Wai Yuen Fu, Hoi Wai Choi
Summary: This report demonstrates a nanostructure configuration that produces spectral red-shifting by increasing the strain in the quantum wells through the formation of an inverted nanoconical-frustum array over the quantum wells. Experimental results show a red-shift of up to 7.6 nm in the photoluminescence spectrum when the proposed nanostructures are fabricated on InGaN/GaN quantum wells grown on a c-plane sapphire substrate with a nominal emission wavelength of around 560 nm.
ACS APPLIED NANO MATERIALS
(2021)
Article
Materials Science, Coatings & Films
Mai Ugajin, Soyoung Park, Takayuki Kiba, Junichi Takayama, Satoshi Hiura, Akihiro Murayama, Midori Kawamura, Yoshio Abe
Summary: In this study, Ag nanomesh structures with different sizes and periods of hole arrays were fabricated and investigated for their potential applications in optical devices such as OLEDs. The results showed that the deposition of Alq(3) on Ag nanomesh can enhance its photoluminescence intensity, indicating the feasibility of using Ag nanomeshes as plasmonic electrodes.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Jinglin He, Zhuolin Shi, Sheng Ye, Minhua Li, Jianfeng Dong
Summary: A reconfigurable bi-functional metasurface is proposed in this paper, which can switch between transmission and absorption modes in a specific wavelength range using phase-change material, and its response is independent of the polarization of the incident wave.
RESULTS IN PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Yulei Huang, Hao Zhou, Fangjie Wang, Congliao Yan, Yao Ju, Qiongqiong Gu, Zixiao Miao, Rui Cai, Xiaolin Sui, Ziyan Wu, Hong Zhang, Guoliang Deng, Shouhuan Zhou
Summary: In this paper, a novel method using nanosphere lithography to fabricate biomimetic moth-eye nanostructures (MENS) on ZnSe surface was presented, which resulted in exceptional antireflection effect. The MENS showed broadband antireflection performance in the 2-5μm wavelength range with a maximum transmission of 82.6% and exhibited desirable hydrophobicity. This work has great potential in optoelectronic devices and high-power laser applications.
Article
Engineering, Electrical & Electronic
Thomas S. Nowack, Yash D. D. Shah, James P. Grant, Ivonne Escorcia Carranza, Mitchell G. Kenney, Daniele Faccio, Edward Wasige, David R. S. Cumming
Summary: English Summary: This article presents the design and fabrication of an anisotropic metasurface that can simplify instrument construction by incorporating multiple beam-forming functions in a single layer. The metasurface generates a probe beam consisting of an orthogonally polarized pair of collinear Bessel beams, creating a well-defined on-axis change of polarization. The setup allows for 3-D beam profiling and sensing experiments at 2.52 THz, and was used for refractive index and diattenuation measurements in a proof-of-principle application. This technology is expected to have future applications in NDT and polarimetric imaging of polymer composites and 3-D profilometry of reflective surfaces.
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Sagar Kumar Verma, Sachin Kumar Srivastava
Summary: In this study, the absorption of near-infrared light by a one-dimensional Fano resonant all-metal plasmonic metasurface (APM) was experimentally demonstrated. The APM, which is low cost, flexible and reusable, was obtained by transferring a 1D patterned plasmonic nanostructure made of Al from a compact disk onto a transparent scotch tape. Control experiments were performed to optimize the light absorption, and the sensing performance of the APMA was evaluated in terms of polarization, reusability, and refractive index (RI) dependence.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Jing Zhao, Jiaxian Wang, Lizhen Gao, Weibin Qiu
Summary: This study proposes a novel high-sensitivity all-dielectric sensor composed of a periodic array of silicon (Si) plates with square nanoholes in the continuous near-infrared band. By adjusting the position of the square nanohole, the symmetry-protected BIC and Friedrich-Wintgen BIC (FW-BIC) can be excited. The torodial dipole (TD) and electric quadruple (EQ) dominate the resonant modes. The proposed metasurface achieves simultaneous high sensitivity, Q-factor, and figure of merit (FOM).
Article
Materials Science, Multidisciplinary
Guanqiao Zhang, Chuwen Lan, Rui Gao, Ji Zhou
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2017)
Article
Multidisciplinary Sciences
Guanqiao Zhang, He Ma, Chuwen Lan, Rui Gao, Ji Zhou
SCIENTIFIC REPORTS
(2017)
Article
Physics, Applied
Xiaobo Wang, Guanqiao Zhang, Haohua Li, Ji Zhou
APPLIED PHYSICS LETTERS
(2018)
Article
Nanoscience & Nanotechnology
Guanqiao Zhang, Chungen Hsu, Chuwen Lan, Rui Gao, Yongzheng Wen, Ji Zhou
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Chemistry, Physical
Guanqiao Zhang, Chuwen Lan, Rui Gao, Yongzheng Wen, Ji Zhou
JOURNAL OF PHYSICAL CHEMISTRY C
(2018)
Article
Materials Science, Multidisciplinary
Xinxi Zeng, Guanqiao Zhang, Xiaoqing Xi, Bo Li, Ji Zhou
