Article
Optics
Jincheng Wang, Hengli Feng, Jingyu Zhang, Chang Liu, Zuoxin Zhang, Dongchao Fang, Lehui Wang, Yang Gao
Summary: This paper proposes a bilateral asymmetric equilateral triangular ring (ETR) band-stop filter based on metal-insulator-metal (MIM) waveguide and investigates its transmission spectrum and electric field distribution using finite difference time domain (FDTD) and coupled mode theory (CMT) method. The results show that changing the number and position of resonant cavities can adjust the transmission characteristics of the filter. The filter has a minimum transmission of 0.1% and a sensitivity of 1149 nm/RIU, making it suitable for highly integrated optical circuits and refractive index sensors.
Article
Physics, Applied
Kaili Kuang, Qiao Wang, Yuzhang Liang, Huixuan Gao, Li Yu, Shuwen Chu, Wei Peng
Summary: In this paper, a nanosystem is proposed to achieve an EIT-like effect in plasmonic sensors using a gold grating and a three-layer structure, enriching the implementation of sensors.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Physics, Multidisciplinary
Gu Xin, Zhang Hui-Fang, Li Ming-Yu, Chen Jun-Ya, He Ying
Summary: The tunable double plasmon-induced transparency effects are investigated in a waveguide coupled by three ellipse-shaped resonators. The influences of coupling modes of the resonators, waveguide structure parameters, and refractive indices of dielectric on the transparency effects are studied. The findings provide a theoretical basis for the potential application of multiple plasmon-induced transparency in plasma switches and sensors.
ACTA PHYSICA SINICA
(2022)
Article
Optics
Hengli Feng, Jingyu Zhang, Zuoxin Zhang, Dongchao Fang, Jincheng Wang, Chang Liu, Tong Wu, Guan Wang, Lehui Wang, Lingling Ran, Yang Gao
Summary: This study proposes a novel band-stop metal-insulator-metal plasmonic waveguide filter that demonstrates high filtering efficiency and sensitivity. The relationship between the wavelength of the incident wave, the refractive index of the measured material, and the transmittance of the incident wave is simulated. The results show that the filter has significantly low transmittance at the dips and high sensitivity for detecting different materials.
OPTICS COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Xiaoyan Shi, Wu Yang, Huaizhong Xing, Xiaoshuang Chen
Summary: Plasmonic power splitters based on hybrid plasmonic waveguides are proposed and analyzed, where the propagation behaviors of Surface Plasmon Polaritons (SPPs) in the waveguides are numerically simulated. The design of different power splitters is achieved by understanding the intensity distributions and multimode interference of SPPs supermodes in the waveguides.
APPLIED SCIENCES-BASEL
(2021)
Article
Optics
A. K. M. Rakib, Ahnaf Tahmid Bin Siddique, Md Sadman Sakib, Md Omar Faruque, Rakibul Hasan Sagor
Summary: The article proposes a surface plasmon polariton based refractive index sensor with metal-insulator-metal arrangement, which demonstrates higher sensitivity than many recent studies. The Finite Element Method (FEM) has been used to analyze the sensor's transmission properties and sensitivity. The highest sensitivity and FOM observed is 4571.7 nm/RIU and 63.3, respectively. The sensor has a sensing resolution of 2.18 x 10-7 RIU and shows potential for use as a notch filter. The high sensitivity and compact configuration make it ideal for on-chip plasmonic nanosensors.
OPTICS COMMUNICATIONS
(2023)
Article
Optics
Yimian Qin, Cunbao Ma, Lihao Huang, Yufeng Yuan, Minggong Sha, Xinli Ye, Kai Zheng
Summary: This paper presents a high-performance hybrid waveguide structure consisting of a high-index nanowire separated by a low-index dielectric gap. The structure allows for flexible control of light transmission through material configuration and geometric effects, enabling highly integrated and low-loss photonics. It is expected to be a valuable building block for various mid-infrared photonic integrated circuits.
Article
Optics
Yichen Ye, Yiyuan Xie, Tingting Song, Nan Guan, Mingsong Lv, Chuandong Li
Summary: A novel and integrated plasmonic full adder based on cascaded rectangular ring resonators for optical computing is proposed. The plasmonic resonators covered by graphene layer can work as all-optical switches with low power consumption and ultrashort response time. Finite-difference time-domain (FDTD) simulation results verify the successful realization of full-adder operations. This plasmonic device offers a new concept for designing optical computing devices with small feature size, fast response time, and lower power consumption.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Cao Dung Truong, Tai Nguyen Van, Minh Tuan Trinh, Hoang Chu Manh, Hung Nguyen Tan, Bac Dang Hoai
Summary: This paper presents a proposal for a compact photonic wavelength filtering and 3-dB wavelength splitting device based on a nanoplasmonic metal-insulator-metal structure, with an accurate simulation of its operating performance. Numerical simulation and optimization can significantly enhance the transmission efficiency of the drop filter, showing potential applications in highly efficient, ultra-compact integrated circuits and optical communication systems at the nanoscale size.
OPTICAL AND QUANTUM ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Qiao Wang, Kaili Kuang, Huixuan Gao, Shuwen Chu, Li Yu, Wei Peng
Summary: This paper investigates the EIT-like effect achieved through the coupling of two waveguide resonances in a compound nanosystem. It demonstrates that destructive interference between two dark modes can lead to the realization of EIT-like effect. The findings suggest potential for further studies on EIT-like effect with dark-dark mode coupling in other systems.
Article
Physics, Condensed Matter
Shiva Khani, Mohsen Hayati
Summary: An elliptical resonator coupled to a metal-insulator-metal waveguide through a silicon layer is used for sensing applications, demonstrating multi resonance modes in the transmission spectrum. High sensitivity and a high FOM value are achieved, making it suitable for use in high sensitivity sensors. This structure offers notable specifications such as ultra-high sensitivity and simplicity in design and fabrication process, making it ideal for optical integrated circuits.
SUPERLATTICES AND MICROSTRUCTURES
(2021)
Article
Physics, Applied
Xuewei Zhang, Shaobin Liu, Kun Liao, Jian Lou
Summary: In this paper, a novel ultra-wideband high-efficiency bandpass filter based on a surface plasmonic waveguide (SPW) is proposed. By using glide symmetry technology, the filter achieves higher propagation constant and efficient transmission. A prototype has been manufactured and measured, showing good agreement with simulations.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Physics, Multidisciplinary
Xiangxiang Hao, Yiping Huo, Qian He, Yiyuan Guo, Qiqiang Niu, Pengfei Cui, Yunyan Wang, Meina Song
Summary: The study proposes a plasmon structure based on MIM waveguide, which can produce multiple high transmission plasmon-induced transparencies that can be tuned by adjusting structure parameters. Additionally, the structure is sensitive to the environment, featuring high refractive index sensitivity and figure of merit values.
Article
Materials Science, Multidisciplinary
Xinxin Gao, Bao Jie Chen, Kam-Man Shum, Qian Ma, Wen Yi Cui, Tie Jun Cui, Chi Hou Chan
Summary: The next-generation wireless communications and intrachip and interchip communications require high-speed terahertz (THz) interconnects, which can be achieved using spoof surface plasmon polaritons (SSPPs). This study proposes and experimentally demonstrates planar multifunctional THz plasmonic devices based on the interaction between SSPPs and spoof localized surface plasmon (SLSPs). These devices enable pass-through transmission, multifrequency resonances, and phase shift in THz plasmonic systems, making them promising for on-chip integrations, wireless communications, and sensing systems.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Muhammad Ali Butt, Nikolay Lvovich Kazanskiy, Svetlana Nikolaevna Khonina
Summary: A numerical analysis of a metal-insulator-metal (MIM) waveguide for refractive index sensing is proposed in this study. The sensing device consists of a MIM bus waveguide with a semicircular cavity, providing a high extinction ratio transmission dip compared to the standard configuration. Mode converters are also embedded to overcome the obstacle of light coupling. The sensitivity of the device is approximately 941.33 nm RIU-1, making it a promising candidate for point-of-care testing.
ADVANCED PHOTONICS RESEARCH
(2023)
Article
Materials Science, Ceramics
Yulong Bai, Ning Jiang, Lei Zhang, Junyu Wang, Penju Zhao, Juyi Wang, Yunming Li, Shifeng Zhao
Summary: In this work, mesoscopic composites of Bi5Ti3FeO15 and BiFeO3 were fabricated to achieve the double consecutive cooling effect. The non-collinear interfacial polarization was proposed as the origin of near room temperature electrocaloric cycling refrigeration. The structure, dielectric capacitance, and ferroelectric polarization of the composite films were analyzed, and the simulation of the mesoscale cooling device showed promising performance for high efficient double cycling refrigeration. Moreover, these results are helpful for understanding the cycling principle of electrocaloric cooling.
CERAMICS INTERNATIONAL
(2023)
Article
Optics
Jian Zhang, Xiangxian Wang, Jiankai Zhu, Tianshan Chen, Liping Zhang, Hua Yang, Chaojun Tang, Yunping Qi, Jianli Yu
Summary: This study presents a metal-insulator-metal (MIM) waveguide structure coupled with symmetric T-type resonators to achieve double Fano resonances. Moreover, an additional independent Fano resonance mode can be generated by replacing one T-type resonator with a ring resonator. The transmission spectrum and electric field distribution at resonant wavelengths are simulated using the finite difference time domain method. The formation mechanism of the Fano resonance is explained using the standing wave theory and multimode interference coupled mode theory. Sensing characteristics are studied, and the designed structure demonstrates a maximum sensitivity of 10(12) nm/RIU and a figure of merit of 5.57 x 10(4), surpassing most recently reported structures. The proposed structure holds broad application prospects in the field of nano sensing.
OPTICS COMMUNICATIONS
(2023)
Article
Optics
Yaqian Ren, Xiangxian Wang, Xiujuan Di, Tianxu Jia, Tianshan Chen, Liping Zhang, Hua Yang, Yunping Qi, Chaojun Tang
Summary: This study investigates the guided mode interference lithography technique using a symmetric metal-cladding dielectric waveguide structure. By adjusting the thickness of the resist and rotating the sample, periodic sub-wavelength gratings with different structures can be fabricated successfully.
Article
Optics
Yunping Qi, Li Wang, Yujiao Wen, Haowen Chen, Yujiao Yuan, Zihao Zhou, Shiyu Zhao, Xiangxian Wang
Summary: A bifunctional absorber with hybrid graphene-vanadium dioxide (VO2) has been proposed and numerically investigated. The absorber demonstrates broadband absorption from 3.15 THz to 8.45 THz with absorptance above 90% when VO2 is in the metallic state. It also exhibits a 10-band absorber with peak absorptances above 90% when VO2 is in the insulating state. The absorber offers great potential in terahertz applications such as modulation, switching, and electromagnetic energy harvesting.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2023)
Article
Optics
Hao Li, Yunping Qi, Mingrui Su, Xiangxian Wang
Summary: A dynamically tunable reconfigurable metasurface combining vanadium dioxide (VO2) as a phase-change material is proposed in the terahertz (THz) band. The metasurface operates in the wide frequency range of 1.09-2.13 THz, achieves a polarization conversion ratio of over 95%, and maintains good performance after the phase transformation of VO2. By utilizing a 3-bit coded metasurface with a special phase arrangement, control over the electromagnetic wavefront, generation of orbital angular momentum, vortex focusing, anomalous reflection, and radar cross section reduction are achieved. This metasurface shows potential applications in secure communication, near-field imaging, wireless transmission, etc.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Jing Chen, Lianjie Zhao, Yong Cheng, Zhendong Yan, Xiangxian Wang, Chaojun Tang, Fan Gao, Zao Yi, Mingwei Zhu
Summary: In this work, both broadband and narrowband absorption peaks are achieved in monolayer graphene by introducing periodic arrays of silver nanodisks. The broadband absorption peak is attributed to localized dipolar plasmon resonances in individual silver nanodisks, while the narrowband absorption peak arises from collective first-order diffraction coupling effect. The full width at half maximum (FWHM) of the broadband absorption peak can be varied from 100 nm to 50 nm by changing the array period, and the FWHM of the narrowband absorption peak can be tuned from about 6.4 nm to only 0.25 nm, realizing an ultra-narrow sub-nanometer bandwidth.
RESULTS IN PHYSICS
(2023)
Article
Chemistry, Physical
Yebin Zou, Chunyan He, Penju Zhao, Qiligeer Bai, Hao Luo, Yulong Bai, Shifeng Zhao
Summary: Artificial electron-oxygen vacancy pairs were fabricated by heterovalent Mn doping, providing new insights for applications in photovoltaics. The effective separation of artificial electron-oxygen vacancy pairs by an electric field and illumination was found to enhance photovoltaic performance. Photocurrent measurements clarified the contribution of artificial electron-vacancy pairs, and it was observed that the enhanced reversible photocurrent is dependent on the doping level and polarization.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Lei Zhang, Xiaoxu Bao, Chunyan He, Yulong Bai, Shifeng Zhao
Summary: Recently, researchers have emphasized the high open-circuit voltage of the ferroelectric photovoltaic effect in the Aurivillius-phase perovskite structure. However, the factors limiting this effect are not well understood. By investigating the correlation between polar phase fraction and ferroelectric photovoltage in Sr1-x Ba x Bi4Ti4O15 polycrystalline films, it has been found that the polar phase fraction plays a crucial role in the photocurrent intensity. At the spectrum response peak of 340 nm, the photovoltaic external efficiency can reach 28%.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Optics
Zhexian Li, Yunping Qi, Zihao Zhou, Luo Bing, Yaqi Wang, Xiangxian Wang
Summary: This article introduces a metasurface capable of generating multiple bound states in the continuum (BICs) and demonstrates the tunability and excellent performance of quasi-BICs. The research has potential applications in sensing, optical communication, and energy harvesting, and offers possibilities for efficient control and manipulation of terahertz waves.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2023)
Article
Physics, Multidisciplinary
Shiyu Zhao, Yunping Qi, Haowen Chen, Yujiao Wen, Li Wang, Zihao Zhou, Shu Zhang, Xiangxian Wang
Summary: This paper proposes a metal-insulator-metal waveguide structure based on a key-shaped resonator. The structure is simulated using the FDTD method, showing the generation of three resonant peaks. The simulation results are then analyzed using the MICMT, demonstrating a high level of agreement. By adjusting the parameters, the resonant peaks can be independently tuned. Notably, the structure achieves a maximum sensitivity of 1520 nm RIU-1 with a FOM* of 195.89, highlighting its exceptional sensing capabilities. The analysis of the asymmetric structure reveals the emergence of a new Fano resonance. The feasibility of blood plasma concentration detection is assessed, achieving a maximum sensitivity of 3.07 nm l g(-1). As a result, this structure offers promising opportunities in the field of on-chip optical integration and the biomedical field, among others.
Article
Physics, Multidisciplinary
Shu Zhang, Yunping Qi, Qiang Shi, Mingrui Su, Shiyu Zhao, Xiangxian Wang
Summary: In this work, a symmetric structure based on metal-insulator-metal (MIM) waveguide is proposed for narrow-band notch filters and refractive index sensors. The structure includes a symmetrically intersecting rectangular-semi-annular cavity and a long straight waveguide. The transmission spectrum and magnetic field distribution of the notch filter are studied using finite element method (FEM) with scattering boundary conditions (SBC). Results show that the band-stop filter exhibits a minimum transmittance of 0.35%, a bandwidth of 34 nm, and a quality factor (Q) of 35.16. Moreover, the structure allows for independent adjustment of the narrow band filtering range by varying geometric parameters such as H, d, R1, and d. The refractive index sensitivity of the structure reaches a high value of 1222 nm RIU-1, accompanied by a figure of merit (FOM*) of up to 175.9. These results demonstrate the structure's excellent filtering properties and high-sensitivity sensing characteristics. Therefore, it holds significant potential for application in high-density integrated circuits and nano-optics.
Article
Physics, Multidisciplinary
Mingrui Su, Yunping Qi, Hao Li, Shu Zhang, Xiangxian Wang
Summary: In order to improve the performance of subwavelength refractive index and temperature sensors, this paper proposes a subwavelength metal-insulator-metal (MIM) waveguide structure consisting of a sawtooth U-shaped cavity and a rectangular cavity based on surface plasmon polaritons. The transmission spectrum of the system is simulated using the finite element method (FEM) and verified with multi-mode interference coupled-mode theory (MICMT). The results demonstrate excellent sensing characteristics for the system, with a refractive index sensitivity of 1300 nm RIU-1, a figure of merit (FOM*) of 191.262, and a temperature sensitivity of 0.525 nm/& DEG;C. This indicates that the nano-plasma system is highly significant in refractive index and temperature sensing.
Article
Physics, Condensed Matter
Xiaoxu Bao, Juyi Wang, Xianfeng Wu, Chunyan He, Hao Luo, Qiligeer Bai, Vrhn Bao, Yulong Bai, Junjie Liu, Shifeng Zhao
Summary: This study investigates the magnetic properties and magnetocaloric effects of polycrystalline Bi0.3xLaxCa0.7MnO3 (x = 0, 0.1, 0.2) ceramics, using Raman active modes and phonons to detect charge disorder and local structure distortion. The large magnetocaloric effect is explained by Jahn-Teller distortion and valence perturbations induced by La doping. The study also reveals a connection between complex magnetic phase transition and magnetic entropy in doped manganites, attributed to the temperature-dependent competition between orbital order and charge order.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Materials Science, Multidisciplinary
Zhiqiang Li, Xiaoxiao Hu, Zhao-Yun Zeng, Yajiang Chen, Ai-Xi Chen, Xiaobing Luo
Summary: This work demonstrates how the current phase transition of atomic Bose-Einstein condensates in a trap can be controlled by applying an oscillatory driving field. The self-trapping effect in momentum space allows for a suppression of oscillations and a nearly constant directed current. Mean-field chaos serves as an indicator of the quantum phase transition. These findings are supported by an effective three-mode model.
RESULTS IN PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jinqin Ye, Yi Li, Jun Ding, Heng Yu, Xianqi Dai
Summary: Constructing van der Waals heterostructures is an efficient approach to enhance the properties and broaden the applications of two-dimensional materials. This study explores the structure, stability, electronic, and optical properties of BlueP/MoSSe heterostructures using density functional theory calculations. It is found that the bandgap and band edge of these heterostructures can be effectively modulated by strain and electric field.
RESULTS IN PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Simone Anzellini, Silvia Boccato, Samuel R. Baty, Leonid Burakovsky, Daniele Antonangeli, Daniel Errandonea, Raffaella Torchio
Summary: The melting line of cobalt was investigated through experimental and theoretical methods, revealing a phase transition from hexagonal close-packed structure to face-centered cubic structure at high temperatures. The melting temperatures obtained from both methods showed good agreement and can be described by a Simon-Glatzel equation. Additionally, a thermal equation of state for the face-centered cubic phase of cobalt was determined.
RESULTS IN PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jiajuan Qing, Shisheng Zhou, Jimei Wu, Mingyue Shao
Summary: This paper investigates the nonlinear chaotic vibrations of fractional viscoelastic PET membranes subjected to combined harmonic and variable axial loads. The viscoelasticity of PET membrane is characterized by the fractional Kelvin-Voigt model. The reliability of the numerical strategy is proved by comparing the results with available fractional systems and examples. The influence of system parameters on chaotic behaviors is described using bifurcation diagrams and detailed responses. This research provides a fundamental framework for controlling viscoelastic substrates in flexible manufacturing.
RESULTS IN PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aly R. Seadawy, Syed T. R. Rizvi, Bazgha Mustafa, Kashif Ali
Summary: In this research, the complete discriminant system of polynomial method is used to analyze the dynamic characteristics of the cubic-quintic nonlinear Schrodinger equation with an additional anti-cubic nonlinear term, with a focus on the introduction of various optical solitons and wave structures. The analysis illustrates the importance of the polynomial method and provides dynamic results for the solutions.
RESULTS IN PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Ruihang Huang
Summary: This study utilized bibliometric analysis to examine the development of multi-scale calculation of carbon nanotubes. Using CiteSpace III software, 1253 relevant articles from the SCI Expanded database were analyzed to identify research trends in this field. The findings revealed significant progress in the research of multi-scale calculation of carbon nanotubes from 1999 to 2023. The analysis of keywords, literature co-citation network, and keyword cluster network provided valuable insights into the knowledge base, important research results, and research hotspots in this field. Additionally, the study predicted future hot research directions using keyword breakout analysis. The research provides profound insights and important guidance for researchers and policymakers in the field of multi-scale calculation of carbon nanotubes to promote further innovation and development.
RESULTS IN PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Xiaohua Zhou, Erhu Zhang, Shumin Zhao, Lei Zhang
Summary: A theoretic model is proposed to study the adhesion behavior of a vesicle adhering inside another vesicle in 2-D case. The model investigates the equilibrium shape equations and boundary conditions, and reveals the phase diagram and critical adhesion condition in different situations.
RESULTS IN PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Xin Yi, Jia-Cheng Huo, Yong-Pan Gao, Ling Fan, Ru Zhang, Cong Cao
Summary: The paper introduces an iterative quantum algorithm based on quantum gradient descent to solve combinatorial optimization problems, verifying the effectiveness and robustness of the algorithm through numerical simulations and comparison with other algorithms. Experimental results on a real quantum computer also demonstrate the feasibility and performance of the algorithm.
RESULTS IN PHYSICS
(2024)
