Article
Materials Science, Multidisciplinary
Huali Zhu, Yong Zhang, Longfang Ye, Yukun Li, Yuehang Xu, Ruimin Xu
Summary: The paper presents and demonstrates a terahertz bandpass filter based on SIPW, which achieves engineered transmission characteristics by adjusting the geometric parameters of SIW and SSPPs. Experimental results validate the effectiveness of the design in the terahertz range.
RESULTS IN PHYSICS
(2021)
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
Physics, Applied
Ashis Paul, Andrea Marini, Samudra Roy
Summary: In this study, we investigate dissipative nonlinear dynamics in graphene-based active metamaterials. We observe that graphene saturable nonlinearity can produce a subcritical bifurcation of nonlinear modes, enabling self-organization of the emitted radiation into dissipative soliton structures with distinct topological charges. Our findings show that soliton vortices are unstable, leading to self-organization into single dissipative structures with vanishing topological charge, regardless of the shape of the graphene nanoflakes.
PHYSICAL REVIEW APPLIED
(2022)
Article
Chemistry, Applied
Malgorzata Skwierczynska, Przemyslaw Wozny, Marcin Runowski, Piotr Kulpinski, Stefan Lis
Summary: Cellulose has the potential to be a promising material for surface-enhanced Raman scattering (SERS) substrates due to its wide availability, low cost, ease of fabrication, high flexibility, and low optical activity. This study demonstrates the development of a cellulose-based substrate that owes its SERS activity to the presence of gold nanorods in its internal structure, ensuring superior stability and reproducibility. The substrate exhibits plasmonic activity and provides easy and reproducible detection of different analytes via the SERS technique.
CARBOHYDRATE POLYMERS
(2022)
Article
Chemistry, Physical
Richa Goel, Vimarsh Awasthi, Padmnabh Rai, Satish Kumar Dubey
Summary: This study demonstrates a numerical design of SERS substrate as a probe for detection and diagnosis of blood, water, and urea samples. The substrate design is robust and sensitive, even at low concentrations of the analyte.
Article
Engineering, Electrical & Electronic
Bai Cao Pan, Ping Yu, Zhen Liao, Fang Zhu, Guo Qing Luo
Summary: A compact bandpass filtering power divider with tunable bandwidth based on SSPPs and SIW is proposed, showing good potential for bandwidth control expansion. By optimizing dimensions or loading ISs, the bandwidth can be designed in a wide range. Introducing DGS and additional resistors can further improve out-of-band suppression and isolation in the device.
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Qing Le Zhang, Bao Jie Chen, Kam-Man Shum, Chi Hou Chan
Summary: This brief introduces a miniaturized spoof surface plasmon polaritons (SPPs) load for planar terahertz (THz) circuit applications on thick substrate. The proposed SPP cell consists of a groove-shaped structure integrated with a folded stub, which enables large capacitance, reduced cutoff frequency, and miniaturization of the SPP size. The SPP load made of nickel (Ni) metal has high conductivity and high permeability, effectively absorbing the propagating electromagnetic wave.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
(2022)
Review
Materials Science, Multidisciplinary
Yindi Wang, Hongxia Liu, Shulong Wang, Ming Cai
Summary: This paper presents a waveguide-integrated graphene-based modulator with excellent performance, including 100% modulation depth, low power dissipation, small device size, and wide bandwidth. The modulator shows robustness and tolerance to fabrication errors, making it highly promising in the field of optoelectronic integrated circuits.
Article
Nanoscience & Nanotechnology
Yang Xiong, Huatian Hu, Tianzhu Zhang, Yuhao Xu, Fei Gao, Wen Chen, Guangchao Zheng, Shunping Zhang, Hongxing Xu
Summary: We report a quantitative molecular detection method based on surface-enhanced Raman spectroscopy (SERS) that achieves ultrahigh sensitivity in detecting alpha fetoprotein in serum using a nanoparticle-on-mirror plasmonic sensor. By adjusting the gaps between the nanoparticles and the gold film, a uniform and strong SERS enhancement is achieved. The detection limit is 697 times higher than that of the normal excitation method and 7800 times higher than a commercial assay kit, providing a potential solution for the bottleneck in SERS-based biosensing.
Article
Materials Science, Multidisciplinary
Arpan Dutta, J. Jussi Toppari
Summary: Organic thin film based excitonic nanostructures have shown great potential in resonant nanophotonics as an alternative to plasmonic systems. The concentration of excitonic molecules in the film plays a crucial role in realizing surface excitonic modes and optimizing their optical performance. Our study investigates the effect of molecular concentration on various surface excitonic modes and their performance in sensing and spectroscopy. The results show that the optical performance of excitonic systems can be tuned by adjusting the molecular concentration, unlike plasmonic systems. This research provides valuable information for the development of novel excitonic nanodevices in organic nanophotonics.
OPTICAL MATERIALS EXPRESS
(2023)
Article
Chemistry, Physical
Richa Goel, Vimarsh Awasthi, Padmnabh Rai, Satish Kumar Dubey
Summary: SERS, a sensitive spectroscopic technique, plays a crucial role in trace detection in various fields. The design of nanostructured substrates has contributed significantly to the development of biological and biomedical sensors.
Article
Chemistry, Multidisciplinary
Sen Wang, Jing Zhang, Maixia Fu, Jingwen He, Xing Li
Summary: A plasmonic grating with three functions is proposed and numerically demonstrated, allowing for the excitation of different types of SPPs such as Cherenkov SPPs wake, nondiffracting SPPs Bessel beam, and focusing SPPs field by modulating the excitation light with linear gradient, symmetrical, or spherical phase. This approach enables dynamic manipulation of the features of these functions without requiring extra fabrication, thus reducing costs in practical applications.
Article
Nanoscience & Nanotechnology
Yi Xu, Baowei Gao, Axin He, Tongzhou Zhang, Jiasen Zhang
Summary: Optical displacement metrology is crucial in nanotechnology but lacks an ultracompact sensor with angstrom-scale resolution and large measurement range. This study proposes an optical displacement sensor with wavelength modulation, achieving subwavelength footprint, angstrom-level resolution, and a wide measurement range.
Article
Physics, Applied
Yundong Liu, Hailiang Chen
Summary: The study proposed a dual-polarized photonic crystal fiber sensor based on SPR for measuring the refractive indexes of liquids in the range of 1.36-1.42, achieving dual-polarized detection through external SPR effect, with maximum RI sensitivities of 15,900 nm RIU-1 and 16,900 nm RIU-1, respectively.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
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
Nanoscience & Nanotechnology
Peng Chen, Shengbin Shi, Hang Wang, Fanglong Qiu, Yuxi Wang, Yumin Tang, Jian-Rui Feng, Han Guo, Xing Cheng, Xugang Guo
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Nanoscience & Nanotechnology
Youwei Jiang, Zhenming Yu, Xinglong Huang, Rifei Chen, Weiyuan Chen, Yifan Zeng, Chengqi Xu, Haodi Min, Nan Zheng, Xing Cheng
MICROFLUIDICS AND NANOFLUIDICS
(2018)
Article
Chemistry, Multidisciplinary
Zi-Lan Deng, Junhong Deng, Xin Zhuang, Shuai Wang, Kingfai Li, Yao Wang, Yihui Chi, Xuan Ye, Jian Xu, Guo Ping Wang, Rongkuo Zhao, Xiaolei Wang, Yaoyu Cao, Xing Cheng, Guixin Li, Xiangping Li
Article
Engineering, Electrical & Electronic
Haodi Min, Nan Zheng, Zengju Fan, Youwei Jiang, Xing Cheng
MICROELECTRONIC ENGINEERING
(2019)
Article
Chemistry, Physical
Shengbin Shi, Hang Wang, Mohammad Afsar Uddin, Kun Yang, Mengyao Su, Luca Bianchi, Peng Chen, Xing Cheng, Han Guo, Shiming Zhang, Han Young Woo, Xugang Guo
CHEMISTRY OF MATERIALS
(2019)
Article
Chemistry, Physical
Youwei Jiang, Bingqing Luo, Xing Cheng
Article
Physics, Applied
Xuan Liu, Junhong Deng, King Fai Li, Yutao Tang, Mingke Jin, Jing Zhou, Xing Cheng, Wei Liu, Guixin Li
PHYSICAL REVIEW APPLIED
(2019)
Article
Nanoscience & Nanotechnology
Kui Feng, Xianhe Zhang, Ziang Wu, Yongqiang Shi, Mengyao Su, Kun Yang, Yang Wan, Huiliang Sun, Jie Min, Yujie Zhang, Xing Cheng, Han Young Woo, Xugang Guo
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Materials Science, Multidisciplinary
Jingxuan Cai, Cuiping Zhang, Chuwei Liang, Siyi Min, Xing Cheng, Wen-Di Li
ADVANCED OPTICAL MATERIALS
(2019)
Article
Materials Science, Multidisciplinary
Ye Tian, Xiangchao Pang, Bin Tang, Xing Cheng
Article
Chemistry, Multidisciplinary
Smitha Ankanahalli Shankaregowda, Rumana Farheen Sagade Muktar Ahmed, Yu Liu, Chandrashekar Bananakere Nanjegowda, Xing Cheng, Srikantaswamy Shivanna, Seeram Ramakrishna, Zhenfei Yu, Xiang Zhang, Krishnaveni Sannathammegowda
Article
Engineering, Electrical & Electronic
Zhuofei Gan, Jingxuan Cai, Chuwei Liang, Liyang Chen, Siyi Min, Xing Cheng, Dehu Cui, Wen-Di Li
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
(2019)
Article
Chemistry, Physical
Jingwei Xiu, Yangfan Shao, Linxun Chen, Yue Feng, Junfeng Dai, Xusheng Zhang, Yi Lin, Yudong Zhu, Zhenggang Wu, Yini Zheng, Hui Pan, Chang Liu, Xingqiang Shi, Xin Cheng, Zhubing He
MATERIALS TODAY ENERGY
(2019)
Article
Chemistry, Multidisciplinary
Fei Zeng, Zengju Fan, Shanshan Wu, Xing Cheng, Yanqing Tian
Article
Engineering, Electrical & Electronic
Nan Zheng, Haodi Min, Youwei Jiang, Xing Cheng
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
(2018)
