Article
Engineering, Electrical & Electronic
Hao Chi Zhang, Le Peng Zhang, Jiayuan Lu, Chenzi Shao, Pei Hang He, Wen Yi Cui, Yi Fei Huang, Tie Jun Cui
Summary: Research has been done on spoof surface plasmon polariton (SPP) transmission lines to achieve flexible control of dispersion. Existing methods for measuring the dispersion of spoof SPPs are difficult and expensive as they require two different samples. This work proposes a new approach that uses experimental near-field data to accurately measure the dispersion curve of a spoof SPP transmission line based on a single sample.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
An-Qi Zhang, Wei-Bing Lu, Zhen-Guo Liu, Yue Li
Summary: The physics of spoof surface plasmon polaritons (SSPPs) and effective surface plasmon polaritons (ESPPs) are studied, and a new effective SSPPs (ESSPPs) is proposed for the first time in this work. The waveguide dispersion method is utilized to enhance the field confinement of SSPPs, achieving a wavelength 1/18 of SSPPs with potential applications for device miniaturization and signal integrity. Two prototypes of ESSPPs waveguide are fabricated and experimental results verify stronger field confinement, showing new possibilities for controlling wave propagation.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Nanoscience & Nanotechnology
Lingrui Chu, Haoran Mu, Han Zhu, Bo Wu, Weijie Liu, Saulius Juodkazis, Feng Chen
Summary: The research introduces an ultrathin titanium film between gold film and fused silica substrate to generate surface plasmon polariton waves. The femtosecond laser-SPPs patterning technique produces high quality gold nanoribbons with a width of about 270 nm and a spatial period of about 700 nm, allowing for rapid and cost-effective production of large-scale plasmonic nanostructures.
MATERIALS TODAY NANO
(2023)
Article
Optics
Chang Liu, Jingyu Zhang, Hengli Feng, Dongchao Fang, Jincheng Wang, Lehui Wang, Zuoxin Zhang, Yang Gao
Summary: This study proposes a compact Metal-Insulator-Metal (MIM) filter that can generate four transmission peaks with high transmission coefficients and narrow frequency widths. Each transmission peak can be individually tuned by adjusting the coupling angle. The structure of the filter is compact, easy to fabricate, and has potential applications in nano-optical communication.
Review
Nanoscience & Nanotechnology
Xu Qin, Wangyu Sun, Ziheng Zhou, Pengyu Fu, Hao Li, Yue Li
Summary: The review focuses on the technique of waveguide effective plasmonics, which provides a feasible low-loss realization of plasmonic metamaterials in lower frequency based on the structural dispersion. It highlights the underlying physics of waveguide effective plasmonics and its applications, ranging from classical plasmonic concepts to novel effective plasmonic devices. Additionally, it briefly discusses the future research directions and potential applications.
Article
Engineering, Electrical & Electronic
Qing Le Zhang, Bao Jie Chen, Ka Fai Chan, Chi Hou Chan
Summary: This article introduces terahertz circularly polarized (CP) and linearly polarized (LP) leaky-wave antennas based on the spin-orbit interaction of spoof surface plasmon polaritons (SPPs). By loading periodic structures of different shapes, different polarization radiation can be achieved, ultimately leading to the fabrication and testing of a terahertz LP leaky-wave antenna with specific gain and scanning capabilities.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Optics
Yichen Ye, Tingting Song, Yiyuan Xie, Chuandong Li
Summary: In this paper, a novel plasmonic all-optical half-subtractor and full-subtractor are designed for optical computing. The states of the plasmonic resonators can be controlled by the pump intensity of a pump beam focused on the graphene layer, enabling the construction of all-optical switches and optical logic devices. Simulation results show that the proposed plasmonic devices can achieve half-subtraction and full-subtraction with a small feature size and fast response time.
Article
Optics
Chunyan Bai, Xiangcai Ma, Qian Cao, Saima Kanwal, Peizhen Qiu
Summary: A multichannel nano-optical conveyer based on a rectangular distributed grating array is proposed in this study. By adjusting the phase difference of the excitation beams, multiple optical traps and parallel transport channels can be generated. Simulation and calculation results demonstrate that 20 nm metallic nanoparticles can be stably attracted to the traps and dynamically transported along channels by adjusting the phase of the excitation beams. Compared to existing nano-photon conveyors, this design offers a straightforward structure and exceptional performance, providing a promising new approach to particle manipulation.
Article
Engineering, Electrical & Electronic
Anirban Sarkar, Duc Anh Pham, Sungjoon Lim
Summary: This article proposes a single-layered electronically tunable annular surface plasmon polariton (SPP)-based leaky-wave antenna at 60 GHz for continuous azimuthal beam scanning. The proposed antenna achieves a large scanning range and high gain through the introduction of additional radiating patches and metallic ground.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Physics, Multidisciplinary
Ling-Xi Hu, Zhi-Qiang He, Min Hu, Sheng-Gang Liu
Summary: In the FDTD simulation, a frequency blue shift of surface plasmon polaritons (SPPs) is observed under parallel electron excitation. The higher the SPPs' frequency in a low confinement region, the higher the excitation efficiency, and the attenuation signal provides broadband frequency information.
Article
Optics
Qiang Zhang, Zhenwei Xie, Peng Shi, Hui Yang, Hairong He, Luping Du, Xiaocong Yuan
Summary: This article investigates the dynamic modulation of optical skyrmions by changing the field symmetry and adding chirality. The study reveals that field symmetry controls the transformation between skyrmions and merons, while material chirality regulates the degree of twist in the fields and spins, and governs the skyrmionic transition. The enantioselective twist of skyrmions and merons arises from the chirality-induced splitting of the hyperboloid in momentum space. The research enriches the portfolio of optical quasiparticles and deepens our understanding of light-matter interaction, paving the way for applications such as chiral sensing, optical tweezing, and topological phase transitions in quantum matter.
PHOTONICS RESEARCH
(2022)
Article
Optics
J. P. Trevino, V. Coello, A. James-Najera, S. Chavez-Cerda, J. E. Gomez-Correa
Summary: This work reports the observation of 2D longitudinal aberrated wavefields by mapping the intensity distributions of surface plasmon polaritons (SPPs) propagating on a metal/air interface. The SPP beam orientation can be adjusted to mimic aberrated beams, showing Seidel terms such as defocus, spherical, coma, and tilt aberrations. This approach provides a visual and rapid examination of the longitudinal evolution of aberrated beams compared to more complicated post-processing reconstructions.
PHOTONICS RESEARCH
(2023)
Article
Optics
Wanqi Zhao, Yu Cheng, Ming Chen, Shijie Deng, Houquan Liu, Chuanxin Teng, Hongyan Yang, Hongchang Deng, Libo Yuan
Summary: This paper proposes an accompanying waveguide coupling structure of micro/nano fibers and studies the excitation and coupling characteristics of surface plasmon polaritons (SPPs) through numerical simulations. The optimal coupling enhancement configuration is obtained, and structures resembling interferometric devices can be designed, providing new insights for high-performance miniaturized devices.
Article
Chemistry, Analytical
Dapeng Chu, Yong Mao, Haoxiang Li, Hong Bie, Yongjin Zhou
Summary: In this paper, a fixed-frequency beam-scanning leaky-wave antenna (LWA) array with switchable dual-polarized beams is proposed and demonstrated. The proposed antenna can be configured in both multi-beam mode and single-beam mode, with flexible adjustment of beam width. The prototype of the antenna is fabricated and measured, showing promising performance for application in satellite communication and future 6G communication systems.
Article
Chemistry, Analytical
Tingsong Li, Shubin Yan, Pengwei Liu, Xiaoyu Zhang, Yi Zhang, Lifang Shen, Yifeng Ren, Ertian Hua
Summary: A nano-refractive index sensor was designed using a metal-insulator-metal (MIM) waveguide and an orthogon ring resonator (ORR) to optimize transmission characteristics through parameter changes. The sensor showed high sensitivity and figure of merit, and has potential applications in detecting trace element concentrations in the human body.
