Article
Materials Science, Multidisciplinary
Xueqing He, Tigang Ning, Li Pei, Jingjing Zheng, Jing Li, Jianshuai Wang
Summary: In this paper, a novel graphene-dielectric hybrid plasmonic waveguide (GDHPW) is proposed, with ultra-small mode area and long propagation length achieved by tuning key structural parameters and chemical potential. Low crosstalk properties between two GDHPWs on a substrate are analyzed, and alternative modified structures with optical confinement performances are proposed, serving as fundamental building blocks for various tunable high-density integrated photonic components and devices.
RESULTS IN PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Mohammad Reza Jafari, Akbar Asadi, Mehran Shahmansouri
Summary: A novel graphene hybrid dielectric plasmonic nano-waveguide (GHDPNW) was proposed to achieve high propagating efficiency in the mid-infrared spectra. The characteristics of the waveguide, including the frequency of incident wave, Fermi energy of graphene, and the width and thickness of dielectric layers, were investigated using the finite element technique. The results showed that the designed waveguide had a smaller mode area, higher figure-of-merit, and longer propagation length compared to similar waveguides by tuning the thickness of dielectric layers and graphene Fermi energy. Additionally, the waveguide exhibited low crosstalk between neighbor geometries. Due to these excellent properties, the designed structure could be applied in nanophotonic integrated circuits.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Optics
He Xueqing, Zhai Yuanbo, Li Pengfei
Summary: This study investigates a graphene V-groove hybrid plasmonic waveguide and analyzes the influence of geometric parameters and graphene chemical potential on the fundamental hybrid plasmon mode supported by the structure. By increasing the number of grooves and reducing the chemical potential of graphene, the effective area of the hybrid mode can be effectively compressed, with a reduction of two orders of magnitude compared to the structure without grooves. Although the transmission length is reduced, the figure of merit is increased by 34.5%-88.5%. Additionally, the crosstalk between two adjacent graphene V-groove hybrid plasmonic waveguides is analyzed, and the minimum distance without crosstalk between the waveguides can be reduced to 22 μm by optimizing the groove geometry and adjusting the chemical potential of graphene.
ACTA OPTICA SINICA
(2023)
Article
Physics, Multidisciplinary
Jinwen Huang, Zhengyong Song
Summary: The terahertz waveguide modulator combining noble metal and graphene was studied, showing an increase in propagation loss with a change in Fermi level. Optimization of structure parameters led to a modulation depth of 6.1 dB μm(-1) at 5 THz. The device achieved a modulation depth of 1.5 dB μm(-1) at 10 THz while maintaining an effective mode area below 10(-5), due to the confinement of allowed mode in a small area.
Article
Engineering, Electrical & Electronic
Wei Chen, Xin Dong, Yan Xu, Yang Gao, Fei Wang, Xiaoqiang Sun, Daming Zhang
Summary: Theoretical demonstration and optimization design of an electrical absorption graphene modulator based on hybrid plasmonic waveguide are introduced in the paper. The modulation performance and frequency response are achieved through the design of vertical metal-insulator-silicon (MIS) waveguide structure and metal electrode. The modulator shows excellent optical and electrical performance, with potential applications in next-generation on-chip optical signal processing.
IEEE PHOTONICS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Tao Ma, Shaohui Liu, Yongsheng Tian, Heng Liu, Fang Wang
Summary: A graphene-hBN-silicon hybrid plasmonic rib waveguide is designed for refractive index sensing, achieving a high FOM value by optimizing size parameters and showing remarkable propagation performance peaks. The sensing structure demonstrates good sensitivity for homogeneous and surface sensing, making it suitable for ultra-compact on-chip micro-nano photonic biochemical sensing systems.
IEEE SENSORS JOURNAL
(2021)
Article
Optics
Songyue Liu, Manzhuo Wang, Tingyu Liu, Yan Xu, Jianbo Yue, Yunji Yi, Xiaoqiang Sun, Daming Zhang
Summary: In this paper, a polarization-insensitive graphene-assisted electro-optic modulator is proposed. By utilizing an orthogonal T-shaped metal slot hybrid plasmonic waveguide and dual-layer graphene on the ridge waveguide, the modulator achieves polarization-independent propagation, high modulation depths, and a wide bandwidth.
Article
Chemistry, Analytical
Yindi Wang, Hongxia Liu, Shulong Wang, Ming Cai
Summary: This paper presents a hybrid waveguide based on metal surface plasmon polaritons (SPPs) at 1550 nm, which achieves excellent waveguide characteristics and has great application potential in optoelectronic integrated circuits.
Article
Nanoscience & Nanotechnology
Tao Cui, Yan Shen, Ao Cheng, Runze Zhan, Zebo Zheng, Bo Tian, Jia Shi, Yanlin Ke, Lei Shao, Huanjun Chen, Shaozhi Deng
Summary: This study successfully prepared a high-quality single-crystalline Mo microrod waveguide structure and utilized subwavelength gratings to excite the surface plasmon polariton behavior of Mo. The optimized Mo microrod exhibited highly efficient waveguide performance.
Article
Materials Science, Multidisciplinary
Peilan Ma, Xuemei Hu, Da Teng
Summary: This paper proposes a hybrid plasmonic waveguide with perovskite layers and plasmonic materials, and studies its characteristics and performance. The results show that the proposed waveguide has strong field confinement ability, high figure of merit, and high tolerance to fabrication errors, making it suitable for compact photonic integration applications.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Optics
Hexuan Wang, Jinbiao Liu, Ziyong Wu, Chuanxin Teng, Shijie Deng, Ming Chen, Yu Cheng
Summary: In this paper, an ultra-short graphene light intensity modulator based on hybrid plasmonic waveguide (HPW) array is proposed. By placing Al2O3 embedded with double-layer graphene on the side polishing surface of the microfiber Mach-Zehnder modulator (MZM) and using the silver-semicircular array as the hybrid plasmonic waveguide, the subwavelength confinement and the light-graphene interaction are significantly enhanced. The modulator achieves high modulation efficiency and high modulation bandwidth, making it suitable for future optical fiber communication systems.
OPTICS COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Akbar Asadi, Mohammad Reza Jafari, Mehran Shahmansouri
Summary: This paper introduces a symmetric graphene dielectric hybrid plasmonic waveguide structure with ultra-deep subwavelength confinement in the mid-infrared spectrum. By adjusting the waveguide geometry dimensions and graphene Fermi energy, excellent mode characteristics can be achieved, while the proposed structure exhibits very small crosstalk effects.
Editorial Material
Optics
Ann-Katrin U. Michel
Summary: Plasmonic structures made of a semiconductor-insulator-metal hybrid offer efficient pathways for second-harmonic and sum-frequency generation in sub-micrometer structures, potentially enhancing on-chip integrated plasmonic circuits.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Materials Science, Multidisciplinary
M. J. Maleki, M. Soroosh, G. Akbarizadeh
Summary: In this study, a new structure based on surface plasmon polariton propagation is introduced for decode operation in optical circuits. A graphene monolayer is used for terahertz wave transmission, while a silicon ridge helps achieve high confinement. The designed structure shows low loss and long coupling length, controlled by adjusting the graphene chemical potential.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Crystallography
Qian Zhang, Jinbin Pan, Shulong Wang, Yongqian Du, Jieyu Wu
Summary: A triangle hybrid plasmonic waveguide is introduced, which can achieve longer propagation length and relatively deep subwavelength mode confinement. The analysis shows that this waveguide is stable and performs excellently, which is significant for manipulating light waves at sub-wavelength dimensions and expanding the application fields of optical devices.
Article
Chemistry, Physical
Jiahui Fu, Bo Lv, Rujiang Li, Ruyu Ma, Wan Chen, Zhefei Wang
Article
Engineering, Electrical & Electronic
Rujiang Li, Bin Zheng, Xiao Lin, Ran Hao, Shisheng Lin, Wenyan Yin, Erping Li, Hongsheng Chen
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2017)
Article
Chemistry, Multidisciplinary
Rujiang Li, Huaping Wang, Bin Zheng, Shahram Dehdashti, Erping Li, Hongsheng Chen
Article
Optics
Muhammad Imran, Rujiang Li, Yuyu Jiang, Xiao Lin, Bin Zheng, Shahram Dehdashti, Zhiwei Xu, Huaping Wang
OPTICS COMMUNICATIONS
(2018)
Article
Optics
Pengfei Li, Chaoqing Dai, Rujiang Li, Yaqin Gao
Article
Multidisciplinary Sciences
Lian Shen, Huaping Wang, Rujiang Li, Zhiwei Xu, Hongsheng Chen
SCIENTIFIC REPORTS
(2017)
Article
Optics
Pengfei Li, Rujiang Li, Chaoqing Dai
Summary: This study investigates the existence, bifurcation, and stability of two-dimensional optical solitons in the context of the fractional nonlinear Schrodinger equation. Different scenarios of bifurcations are observed depending on the stability and type of nonlinearities, with asymmetric solitons emerging through symmetry breaking bifurcation. The restoration or destruction of symmetry in antisymmetric solitons can be controlled by adjusting the fractional diffraction in the case of self-defocusing saturable nonlinearity.
Article
Physics, Multidisciplinary
Bo Lv, Rui Chen, Rujiang Li, Chunying Guan, Bin Zhou, Guohua Dong, Chao Zhao, YiCheng Li, Ying Wang, Huibin Tao, Jinhui Shi, Dong-Hui Xu
Summary: This study reports the experimental realization of two-dimensional aperiodic-quasicrystalline quadrupole-topological insulators in electrical circuits, demonstrating localized corner modes.
COMMUNICATIONS PHYSICS
(2021)
Correction
Physics, Multidisciplinary
Bo Lv, Rui Chen, Rujiang Li, Chunying Guan, Bin Zhou, Guohua Dong, Chao Zhao, YiCheng Li, Ying Wang, Huibin Tao, Jinhui Shi, Dong-Hui Xu
COMMUNICATIONS PHYSICS
(2021)
Article
Multidisciplinary Sciences
Yihao Yang, Yong Ge, Rujiang Li, Xiao Lin, Ding Jia, Yi-jun Guan, Shou-qi Yuan, Hong-xiang Sun, Yidong Chong, Baile Zhang
Summary: The research introduces a mechanism for achieving negative refraction through synthetic gauge fields, which has been experimentally demonstrated and shows potential for wave manipulation in artificially engineered materials.
Article
Physics, Multidisciplinary
Rujiang Li, Xiangyu Kong, Dongkai Hang, Guoyi Li, Hongyu Hu, Hao Zhou, Yongtao Jia, Pengfei Li, Ying Liu
Summary: This work explores the properties of topological bulk solitons in a photonic Chern insulator in the presence of nonlinearities. It demonstrates the stability and robustness of these solitons, and highlights the interplay between topology and nonlinearity in photonic systems.
COMMUNICATIONS PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Rujiang Li, Pengfei Li, Yongtao Jia, Ying Liu
Summary: This research proposes self-localized topological states in a 3D nonlinear photonic system, where the topological solitons at high-symmetry points rotate in the same direction and remain stable under the saturable nonlinearity. The findings highlight the interaction between topology and nonlinearity and its potential application in other 3D topological systems.
Article
Optics
Rujiang Li, Yakir Hadad
Summary: This study explores a bulk mode supported by a periodic coupled resonator waveguide with odd length, which is insensitive to disorder. Resonant transmission near its eigenfrequency shows reduced sensitivity to disorder compared to any other frequency in the passband.
Article
Materials Science, Multidisciplinary
Muhyiddeen Yahya Musa, Maturi Renuka, Xiao Lin, Rujiang Li, Huaping Wang, Erping Li, Baile Zhang, Hongsheng Chen
