Yilin Lv

Dalian University of Technology

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Shenggang Liu

Ministry of Education of the People's Republic of China

Renbin Zhong

University of Electronic Science and Technology of China

Han Chen

Hunan University of Technology

Yiqing Wang

Nanjing University

Anchen Ma

University of Electronic Science and Technology of China

Yang Long

Nanyang Technological University

Zheng Fang

Zhejiang University

Yan Liu

University of Electronic Science and Technology of China

Zhenhua Wu

Huaiyin Institute of Technology

Zekun Liang

Zhongyuan University of Technology

Cooperative Institutions

University of Electronic Science and Technology of China

Fudan University

Ministry of Education of the People's Republic of China

Sichuan University

Beijing Institute of Technology

Hefei University of Technology

Chinese Academy of Sciences

Jilin University

Chinese Academy of Medical Sciences & Peking Union Medical College

Wuhan University of Technology

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Research on ultra-wideband terahertz absorber with graphene loaded dielectric hemi-ellipsoid

2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) (2020)

Yang Long Renbin Zhong Zhenhua Wu Yilin Lv Chen Jin Han

An ultra-wideband terahertz absorber is presented with dielectric hemi-ellipsoid on a monolayer graphene layer. The absorber has achieved an ultra-wideband absorption bandwidth from 2 THz to more than 10 THz with an average absorbance of 95.72%, the relative bandwidth reaches 133%. The excellent absorption properties owing to multiple discrete graphene plasmonic resonances(GPRS) and the continuous multimode Fabry-Perot (FP) resonances, the mechanism for the its ultrawideband absorption are analyzed in details.

Wideband

10.1109/irmmw-thz46771.2020.9370864

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Independently tunable dual-band metamaterial absorber based on graphene at mid-infrared frequencies

2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) (2019)

Han Chen Renbin Zhong Yilin Lv Yiqing Wang Yang Long

Despite the great achievement in understanding of the graphene-based metamaterial absorbers (GMAs), the limitations such as single narrowband absorption, low absorption peak and multiple bands that can't be independently tuned have not been completely overcome. This paper reports a dual-band absorber through etching two cascaded metallic resonators with different sizes in the unit cell of GMA. Two independently tunable absorption bands with absorption peaks greater than 99% are obtained at mid-infrared frequencies.

Narrowband

Multi-band device

Absorption band

Split-ring resonator

10.1109/irmmw-thz.2019.8874303

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超音波検査における改善されたアンサンブル経験的モード分解法の適用【Powered by NICT】

IEEE Conference Proceedings (2016)

Zhao Xue Wei Dong Yilin Lv

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Independently tunable multi-band and ultra-wide-band absorbers based on multilayer metal-graphene metamaterials

Optics Express (2019)

Yan Liu Renbin Zhong Jiebiao Huang Yilin Lv Han Chen

Dynamically and independently tunable absorbers based on multilayer metal-graphene metamaterials are proposed to achieve multi-band and ultra-wide-band absorbing properties at mid-infrared frequencies. Dual-band, triple-band and even more bands absorption can be arbitrarily customized by etching the appropriate number of tandem gold strips in each meta-molecule, as well as stacking multiple metal-graphene layers. Through tuning the Fermi energy level of the graphene in each metal-graphene layer separately, the multiple absorption resonances can be dynamically and independently adjusted. With side-by-side arrangement of the gold strips in each supercell, the proposed structure is rendered to be a promising candidate for ultra-wide-band absorber. The extreme bandwidth exceeding 80% absorption up to 7.5THz can be achieved with a dual-layered structure, and the average peak absorption is 88.5% in the wide-band range for lossless insulating interlayer. For a triple-layered structure, the average peak absorption is 84.7% from 27.5 THz to 38.4 THz with a minimum of 60%. The absorption windows can be even further broadened with more metal-graphene layers. All these results will benefit the integrated microstructure research with simple structure and flexible tunability, and the multilayer structure has potential applications in information processing fields such as filtering, sensing, cloaking objects and other multispectral devices.

Cloaking

STRIPS

Absorption band

10.1364/oe.27.007393

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Quantifying tagged mRNA export flux via nuclear pore complexes in single live cells

Biochemical and Biophysical Research Communications (2021)

Yueyue Jing Yilin Lv Jingya Ye Longfang Yao Liwen Chen

HeLa

10.1016/j.bbrc.2021.01.049

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A multiterminal Energy Interconnection System Based on MMC and its unbalanced power control

Ping Liu Xing Zhang Fusheng Wang Liang Liu Yilin Lv

A multiterminal Energy Interconnection System Based on MMC was developed, which connected active sub-modules, DC grids and AC grids. However, the power imbalance of the active sub-modules exists in this system, for example, inconsistent maximum power points of the PV panels will lead to system power loss. In order to solve the problem, this paper first presents a power control scheme between the three-terminals, then proposed an unbalanced power control strategy, which focused on the power unbalance between upper and lower arms on one phase through injecting the fundamental frequency of the circulating current into the arms. Finally, the simulation results of a three-phase 9-level MMC validated the effectiveness and feasibility of the developed idea.

Three-phase

10.1109/ifeec.2017.7992361

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Metal-graphene stacking structure for dynamical tunable ultra-wide band absorbers

2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) (2019)

Renbin Zhong Yan Liu Yilin Lv Han Chen Yiqing Wang

By construction metal-graphene metamaterial with simple gold strips parallel or side-by-side arranged on a monolayer graphene as molecular cells, multi-band and ultra-wide band absorber can be achieved at mid-infrared frequencies. The extremely absorption bandwidth up to 11.8THz can be obtained, the intensity exceeds 90% at the absorption peak. Independently tunable multi-band and ultra-wide band absorber is also explored by stacking molecular cells with two or three layers. The results will benefit the integrated micro-structure research with flexible tunability, and the multilayer structure has potential applications in tunable filtering, sensing, cloaking objects and other multispectral devices.

Cloaking

STRIPS

Absorption band

10.1109/irmmw-thz.2019.8873827

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COVID-19 SIR network modeling and prediction

Highlights in Science Engineering and Technology (2022)

Yilin Lv Maoting Shi Qiao Hu

The high infectivity and insidiousness of COVID-19 have enabled the virus to spread rapidly around the world, threatening human life, health and social order, and being infectious in crowded places such as subway stations. Based on the analysis of COVID-19 transmission, this paper divides the population into three categories: susceptible category, discovered disease category and immune category consisting of cure and death, and proposes two models: crowd contact network and contact network-based SIR model to simulate the transmission process of SIR; then absorbs the idea of synchronous update of cellular automaton model, and finally establishes a contact network-based SIR model whose members are affected by all passengers at the same time simulation model. For this model, we fit the data of Beijing, analyze and predict the peak of the latest round of epidemic development (the peak of the number of patients, the peak of the transmission rate), and the length of the latest round of epidemic development cycle, etc, and propose some policy recommendations accordingly.

Social contact

Epidemic model

10.54097/hset.v1i.500

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Digital twin-based excavation trajectory generation of Uncrewed excavators for autonomous mining

Automation in Construction (2023)

Tao Fu Tianci Zhang Yilin Lv Xueguan Song Guang Li

Excavator

Shovel

Payload (computing)

Roadheader

Downtime

Structural load

10.1016/j.autcon.2023.104855

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Ultra-sensitive biological THz metamaterial sensor

2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) (2020)

Anchen Ma Renbin Zhong Zhenhua Wu Yilin Lv Han Chen

An ultra-sensitive THz metamaterial sensor with asymmetric duble-F-shaped metal resonators (ADFSMR) is proposed, and its application in terahertz is analyzed. The sensor achieved perfect narrow-band absorption spectrum at 5.95 THz, with a high Q factor of 49.6. It is ultra-sensitive to the refractive index of the surrounding medium and the thickness variation of the medium. Simulation results show that the sensitivity is 1800 GHz / RIU for analyte with thickness of 5um. Additionally, for a typical biomedical analyte of n = 1.3, the sensitivity was 134 GHz/μm. It has important application in THz high-sensitive biomedical sensor and detector.

Split-ring resonator

10.1109/irmmw-thz46771.2020.9370513

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Citations (1)