Article
Optics
Guillaume Blanquer, Vivien Loo, Nancy Rahbany, Christophe Couteau, Sylvain Blaize, Rafael Salas-Montiel, Yannick de Wilde, Valentina Krachmalnicoff
Summary: The study focuses on the characterization of a hybrid dielectric/plasmonic waveguide and experimentally demonstrates the strong directionality of the device. It also highlights the ability of the plasmonic antenna to generate powerful coupling between a single emitter and the waveguide through numerical simulations.
Article
Engineering, Electrical & Electronic
Yue-Ting Tsai, Yu-Hsun Wu, Chu-Chun Wu, Shun-Tung Yen, Gray Lin, Sheng-Di Lin
Summary: This work reveals the operating mechanism and laser modes of semiconductor-based plasmonic crystal lasers (PCLs), emphasizing the essential role of waveguide mode coupling with the surface plasmonic mode. Both simulation and experimental data show that the cooperation of dielectric layers and metallic nano-pillar array provides the required high-quality factor resonant mode. Properly designing the coupling strength is crucial for the functionality of these intriguing devices.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Engineering, Multidisciplinary
M. A. Butt, N. L. Kazanskiy, S. N. Khonina
Summary: In this study, numerical analysis is conducted to investigate the conversion efficiency of mode converters for plasmonic waveguides. The efficient coupling of light to the sub-nano scale waveguide from an external source is a major concern for metal-insulator-metal waveguide devices, which has not been extensively studied before. The proposed dielectric-to-plasmonic and plasmonic-to-dielectric mode converters demonstrate an overall conversion efficiency of approximately -1.6 dB for a 5000 nm long device. Additionally, a MIM waveguide-based sensor with a circular hollow cavity is designed for refractive index sensing applications, exhibiting a sensitivity of 1132.14 nm/RIU and a figure of merit of 48.17 RIU-1. This study is expected to pave the way for highly integrated plasmonic sensors based on MIM waveguides.
Article
Chemistry, Physical
Amrita Pati, Reuven Gordon
Summary: Plasmonic slot waveguides offer extreme light confinement and have naturally present electrodes for switching and high thermal conductivity of the metal layers to remove excess heat. This study presents an analytical model of plasmonic slot waveguides that accurately determines the modal properties based on single-mode matching to continuum, with an accuracy of within 3% compared to rigorous numerical simulations. The theory enables rapid design and provides physical insight into mode propagation in plasmonic slot waveguides for various applications such as information processing, optical manipulation, and sensing.
Article
Chemistry, Physical
Xinhai Sun, Zhouze Chen, Yu Shen, Jialin Lu, Yuxing Shi, Yanhua Cui, Feng Guo, Weilong Shi
Summary: In this study, Ag2S/PCNNVs nanoreactors were developed by coating silver sulfide quantum dots (Ag2S QDs) onto the surface of porous graphitic carbon nitride nano vesicles (PCNNVs) through a simple calcination method. These nanoreactors showed efficient photothermal-assisted photocatalytic hydrogen (H2) evolution under simulated/real sunlight irradiation. The optimized 3% Ag2S/PCNNVs sample exhibited a hydrogen production rate of 34.8 mmol h-1 g-1, which was 3.5 times higher than that of bare PCNNVs. The enhanced activity of the Ag2S/PCNNVs composite system is attributed to the coupling of the photothermal conversion performance of Ag2S QDs and the thermal insulation performance of PCNNVs based on the plasmonic coupling-boosted photothermal nanoreactor. This study presents a promising strategy for the development of high-efficient photothermal-assisted photocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Optics
Ning Liu, Jianfa Zhang, Zhihong Zhu, Wei Xu, Ken Liu
Summary: This paper discusses methods for achieving high-efficiency coupling in integrated nanophotonic chips, analyzes factors affecting coupling efficiency, and proposes a scheme to improve coupling efficiency. The theoretical feasibility of the scheme was validated through experimentation, laying the foundation for the integration of photonic devices and optical fibers.
Article
Computer Science, Information Systems
Asif Mehmood Khan, Muhammad Mansoor Ahmed, Umair Rafique, Arslan Kiyani, Syed Muzahir Abbas
Summary: In this study, an efficient slotted waveguide antenna system is designed for high power microwave applications in the S-band. The antenna system offers high gain, high power handling capability, and has compact dimensions, making it advantageous for practical use.
Article
Optics
Shixiu Wei
Summary: A novel strip-slot-strip hybrid waveguide was proposed for achieving extremely high dispersion and large bandwidth by adjusting different parameters to control the center wavelength, peak value, and bandwidth of the dispersion curve.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Kritarth Srivastava, V. Dinesh Kumar
Summary: This study presents the efficient coupling of light between two chief hybrid plasmonic waveguides, HMIM and HIMI, offering over 95% transmission and a compact footprint area of 2.4 x 1 mu m(2), suitable for on-chip applications.
OPTICAL AND QUANTUM ELECTRONICS
(2021)
Article
Nanoscience & Nanotechnology
Li Niu, Quan Xu, Xueqian Zhang, Ziying Zhang, Shaoxian Li, Xieyu Chen, Yuehong Xu, Jiajun Ma, Ming Kang, Jiaguang Han, Weili Zhang
Summary: Efficient manipulation of electromagnetic waves using metasurfaces has been a focus of research, with the introduction of meta-coupling effects providing further physical insights in wave control. This strategy allows for efficient tuning of reflection phase shift without changing resonator dimensions, enabling the design of high-efficiency metasurface deflectors. The proposed controlling strategy enriches design freedoms and may have broad applications in functional devices.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Parviz Saeidi, Bernhard Jakoby, Gerald Puhringer, Andreas Tortschanoff, Gerald Stocker, Jasmin Spettel, Florian Dubois, Thomas Grille, Reyhaneh Jannesari
Summary: This work investigates the optimization of a plasmonic slot waveguide (PSWG) in the mid-IR region, with a focus on a representative wavelength of 4.26 μm, which is the absorption line of CO2. The study analyzes the mode features of different structures and optimizes the PSWG based on a figure of merit (FOM) that considers confinement factor and propagation length. Attractive wavelengths and geometries that maximize the FOM are also identified for other wavelengths.
Article
Chemistry, Physical
Monosij Mondal, Maicol A. Ochoa, Maxim Sukharev, Abraham Nitzan
Summary: The interaction between excited states of a molecule and excited states of a metal nanostructure leads to hybrid states with modified optical properties. The condition for strong coupling between plasmons and molecules can be easily satisfied if the only contributions to the spectral width are associated with the radiative and nonradiative relaxation of a single molecular vibronic transition. However, the observation of Rabi splitting becomes more challenging when the molecule-metal surface distance is varied due to the spectral shift associated with the same molecule-plasmon interaction.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Physics, Applied
Amirreza Mahigir, Georgios Veronis
Summary: This study introduces wavelength-scale light coupling structures and switches for plasmonic coaxial waveguides. By optimizing single-slit, double-slit, and triple-slit structures, the coupling efficiency is enhanced, and different propagation modes can be generated. Additionally, the study explores outcoupling structures for light extraction and utilizing proper angle excitation for specific modes in plasmonic coaxial waveguides.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Computer Science, Information Systems
Linfeng Li, Jie-Bang Yan
Summary: The microstrip-fed air-substrate-integrated waveguide (ASIW) slot array antenna presented in this study offers high efficiency, low cost, simple manufacturing, and compatibility with standard PCB manufacturing processes, making it a suitable solution for simple and efficient antenna arrays in millimeter-wave applications.
Article
Engineering, Electrical & Electronic
Erfan Ahmadi, Saeed Fakhte, Seyyed Sina Hosseini
Summary: This paper presents a tapered dielectric rod antenna excited by a folded dipole coplanar waveguide at terahertz frequencies. Two numerical methods are used to obtain the effective refractive index of the plasmonic transmission line and determine the dimensions of the connected gap. The antenna performance is examined for two lengths of the rod, achieving impedance bandwidths, maximum gains, and radiation efficiencies. The dielectric rod nanoantenna operates at all optical communication band frequencies and its structure includes three layers, with a silicon oxide substrate discussed for preventing direct contact.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Mechanical
Han Yan, Yipeng Zhao, Ruoxi Yang, Tiejun Li
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2020)
Article
Behavioral Sciences
Li Gu, Ruoxi Yang, Qihan Zhang, Peng Zhang, Xuejun Bai
FRONTIERS IN BEHAVIORAL NEUROSCIENCE
(2020)
Article
Multidisciplinary Sciences
Zhanwei Zhou, Hui Wu, Ruoxi Yang, Alan Xu, Qingyan Zhang, Jingwen Dong, Chenggen Qian, Minjie Sun
Article
Optics
Rami A. Wahsheh
Summary: This research work presents two different designs of 1x2 3-dB small-footprint high-performance plasmonic power splitters with unequal splitting ratios achieved by breaking the symmetry of the two plasmonic branches. The proposed designs improve the alignment tolerance and broaden the spectrum response of the splitter.
JOURNAL OF MODERN OPTICS
(2021)
Article
Chemistry, Multidisciplinary
Zhanwei Zhou, Huan Liang, Ruoxi Yang, Ying Yang, Jingwen Dong, Yongxiang Di, Minjie Sun
Summary: This study developed dimersomes, lipid-like materials capable of depleting glutathione (GSH) in tumors and delivering therapeutic drugs, which enhanced ferroptosis therapy and immunotherapy for breast cancer.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Pharmacology & Pharmacy
Alan Xu, Ruoxi Yang, Mingfei Zhang, Xiang Wang, Yuxi Di, Baoping Jiang, Yongxiang Di, Zhanwei Zhou, Lingling Zhou
Summary: Abundant M1 macrophages in the joint synovium play a major role in exacerbating rheumatoid arthritis (RA) by secreting various inflammatory cytokines. This study identifies cGAS-STING as an important pro-inflammatory pathway upregulated in RA and proposes it as a potential target for RA therapy. The researchers developed M1 macrophage-targeting micelles, capable of inhibiting the cGAS-STING pathway, for the smart treatment of RA. These micelles effectively targeted the joints, enhanced the uptake of an anti-inflammatory drug called triptolide by M1 macrophages, and reduced side effects on normal tissues.
JOURNAL OF DRUG TARGETING
(2022)
Article
Biochemical Research Methods
Yuqi Zhou, Masako Nishikawa, Hiroshi Kanno, Ruoxi Yang, Yuma Ibayashi, Ting-Hui Xiao, Walker Peterson, Maik Herbig, Nao Nitta, Shigeki Miyata, Yogendra Kanthi, Gustavo K. Rohde, Kyoji Moriya, Yutaka Yatomi, Keisuke Goda
Summary: This study used image-based single-cell profiling and temporal monitoring to investigate the long-term effects of Pfizer-BioNTech COVID-19 vaccines on platelet function. The results showed that there were no significant or persisting platelet aggregation trends following the vaccine doses.
Review
Chemistry, Multidisciplinary
Ruoxi Yang, Wanqing Zhang, Naveen Tiwari, Han Yan, Tiejun Li, Huanyu Cheng
Summary: This article introduces the emerging highly sensitive and multimodal sensors for various applications in epidermal electronics, robotics, health monitoring devices, and human-machine interfaces. It emphasizes the importance of material selection and sensor structure design in decoupling sensing mechanisms, and discusses methods to decouple different input signals for truly multimodal sensors, as well as strategies for interference suppression and signal correction.
Article
Energy & Fuels
Guiqiang Li, Jinpeng Li, Ruoxi Yang, Xiangjie Chen
Summary: This paper proposes a hybrid hydrogen production method by combining photothermal cooperative reaction with PV/T power generation electrolysis water. The efficiency of the hybrid model is higher compared to traditional methods. The study provides insights for the design of more efficient full-spectrum solar hydrogen production methods.
Article
Multidisciplinary Sciences
Zhanwei Zhou, Ruoxi Yang, Jingwen Dong, Yongxiang Di, Ying Yang, Ying Huang, Xue Yang, Wei Liu, Jinqiang Wang, Peifeng Liu, Zhen Gu, Minjie Sun
Summary: In this study, the researchers successfully utilized CD8+ T cells to form pores on tumor cells' plasma membranes, enabling the delivery of RNase A and granzyme B into cells. This effectively induced tumor apoptosis and pyroptosis through the activation of caspase 3 and gasdermin E pathways, enhancing the efficacy of CD8+ T cell-mediated immunotherapy.
Article
Biochemical Research Methods
Chenqi Zhang, Maik Herbig, Yuqi Zhou, Masako Nishikawa, Mohammad Shifat-E-Rabbi, Hiroshi Kanno, Ruoxi Yang, Yuma Ibayashi, Ting-Hui Xiao, Gustavo K. Rohde, Masataka Sato, Satoshi Kodera, Masao Daimon, Yutaka Yatomi, Keisuke Goda
Summary: Using a microfluidic imaging flow cytometer, the researchers measured the blood of 181 COVID-19 samples and 101 non-COVID-19 thrombosis samples. They trained a convolutional neural network to distinguish different blood cell types and performed image analysis for each subpopulation. Based on the obtained features, machine learning models were trained to classify COVID-19 and non-COVID-19 thrombosis, achieving a patient testing accuracy of 75%. The analysis was optimized for efficiency and implemented in an easy-to-use plugin, allowing real-time diagnosis on mid-range computers.
Article
Engineering, Electrical & Electronic
Rami A. Wahsheh
Summary: In this research work, the design steps of Mach-Zehnder interferometers (MZIs) are theoretically investigated. The proposed MZI designs feature a compact size, high transmission coupling efficiency, and the ability to be used in a broad spectrum range.
IEEE PHOTONICS JOURNAL
(2023)
Article
Materials Science, Biomaterials
Qingyan Zhang, Ying Huang, Ruoxi Yang, Junmei Mu, Zhanwei Zhou, Minjie Sun
Summary: This study developed a poly-antioxidant to deliver anti-miR-155 for synergistic treatment of metastatic breast cancer by scavenging reactive oxygen species and inhibiting miR-155. The novel nanoplatform effectively blocked the NF-kappa B pathway, demonstrating strong anti-metastatic ability both in vitro and in vivo.
BIOMATERIALS SCIENCE
(2022)
Article
Engineering, Multidisciplinary
Hao DaPeng, Yang RuoXi, Yi Ning, Cheng HuanYu
Summary: A flexible piezoresistive pressure sensor assembled with two 3D laser-induced graphene foam electrodes shows promising potential for low-cost, large-scale production and favorable sensing performance in motion detection and wrist pulse monitoring. Enhancement with MoS2 nanoparticles further increases sensitivity and sensing range, outperforming previous literature reports, while maintaining fast response/recovery rates and excellent durability/repeatability.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2021)
Article
Multidisciplinary Sciences
Zhanwei Zhou, Qingyan Zhang, Ruoxi Yang, Hui Wu, Minghua Zhang, Chenggen Qian, Xiangzhong Chen, Minjie Sun
