Article
Engineering, Manufacturing
Tun Cao, Meng Lian, Kuan Liu, Xianchao Lou, Yaoming Guo, Dongming Guo
Summary: Researchers have developed a broadband mid-infrared thermal emitter using stacked nanocavity metasurfaces, which can absorb a wide range of polarized light and achieve high thermal radiation in the 8-14 μm atmospheric window.
INTERNATIONAL JOURNAL OF EXTREME MANUFACTURING
(2022)
Article
Physics, Condensed Matter
Nguyen Van Men, Nguyen Quoc Khanh, Dong Thi Kim Phuong
Summary: This study calculates the plasmon frequency and damping rate of plasma oscillations in a spin-polarized bilayer graphene system. It shows that the degree of spin polarization has a negligible effect on the long wavelength plasmon frequency but affects the damping rate and frequency changes with increasing spin polarization. Moreover, an increase in carrier density significantly decreases both the plasmon frequency and damping rate, while the critical wave vector decreases with spin polarization and can be used to experimentally determine the degree of spin polarization.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Article
Engineering, Electrical & Electronic
Zheng Liang, Shi-Shan Qi, Wen Wu
Summary: This letter proposes a novel wideband vertically polarized planar endfire antenna based on the first and the second high-order modes of spoof surface plasmon polaritons (SSPPs). By replacing the uniform stub in the conventional SSPP cells with a step-impedance-resonator (SIR) shaped stub, the bandgap between the first and the second high-order modes is eliminated. The antenna achieves a fractional bandwidth of 91.6% from 12.9 to 34.6 GHz and a peak gain of 17.3 dBi.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Zuoxu Wu, Xiaodong Wang, Shuaihang Hou, Yijie Liu, Zunqian Tang, Li Yin, Youwei Qiao, Jian Wang, Xingjun Liu, Jun Mao, Qian Zhang, Feng Cao
Summary: This study investigates the optical properties of the conjugated polymer PEDOT:PSS and demonstrates that its infrared emissivity can be easily modulated by regulating the PSS doping level in PEDOT:PSS. The metallic infrared optical properties of PEDOT:PSS can be weakened by increasing the PSS doping level, resulting in a significant modulation in infrared radiation. The effective model proposed in this study not only reveals the IR optical characteristics of PEDOT:PSS but also enables scalable thermal camouflage compatible with various application environments.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Hui-Hsin Hsiao, Chu-Han Huang, Bo-Ting Xu, Guan-Ting Chen, Po-Wei Ho
Summary: This work demonstrates a triple narrowband MIR thermal emitter with selective multiple radiation peaks, which utilize different excited modes to provide high accuracy light source in a specific wavelength range suitable for molecular fingerprint discrimination.
ACS APPLIED NANO MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Binze Ma, Yun Huang, Weiyi Zha, Bing Qin, Rui Qin, Pintu Ghosh, Sandeep Kaur, Min Qiu, Qiang Li
Summary: Thermal emission engineering with spectral and spatial selection capability has gained attention, and a new narrowband, diffuse thermal emitter has been successfully demonstrated to address the issues of high angle-sensitivity and low quality factor in thermal radiation control.
Article
Chemistry, Multidisciplinary
Guozhi Hou, Qingyuan Wang, Yu Zhu, Zhangbo Lu, Jun Xu, Kunji Chen
Summary: This study demonstrates a tunable narrowband thermal emitter based on a fully planar Si-W-SiN/SiNO multilayer structure, which exhibits narrowband absorption, high-temperature stability, and potential applications in various photonics and thermal applications.
Article
Thermodynamics
Shiri Liang, Feng Xu, Wenxin Li, Wenxing Yang, Shubo Cheng, Hua Yang, Jing Chen, Zao Yi, Peipei Jiang
Summary: In this paper, an intelligent thermal controlled radiation emitter based on Vanadium Dioxide is studied, which can switch between high-temperature heat dissipation and low-temperature heat preservation. It exhibits effective thermal control performance and holds significant prospects for applications in various fields.
APPLIED THERMAL ENGINEERING
(2023)
Article
Optics
Yoshiaki Nishijima, Naoki To, Armandas Balcytis, Saulius Juodkazis
Summary: This study conducted a detailed spectral analysis of the radiation absorption and scattering behaviors of metasurfaces through photonic simulations. It was found that the absorbance and scattering cross-sections exhibit a ratio of 1 at the absorption peak spectral position. By increasing the absorption through optical materials, the total absorption efficiency can be controlled, leading to near-perfect absorption and emission of thermal radiation.
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
H. H. Sanchez-Hernandez, J. M. Perez-Abarca, A. S. Cruz-Felix, A. Santiago-Alvarado
Summary: The study explored the structure of obtaining the resulting polarization in the resonance of surface plasmon in the Kretschmann configuration, with a silver film as coating and a dielectric layer deposited on the silver film, using water as substrate and a light source of λ = 633 nm. The resulting polarization change is indicated by amplitudes-Psi and phases-Delta of the resulting wave associated with the ellipsometry function, which show remarkable points for each incident angle representing features such as suppressors, aligners and retarders.
OPTICS COMMUNICATIONS
(2021)
Article
Instruments & Instrumentation
Yuan Cheng, Tianze Zhao, Zhuo Li, Rui Shi
Summary: This paper introduces an infrared image conversion chip based on optical heating technique, which has the advantages of wide spectral range and high spatial resolution, suitable for use as an infrared target simulator. The chip can generate infrared images with 10-bit grayscale values within 1.25ms and collect them for a holding time of 3.75ms in each refresh cycle. The temperature range of the generated infrared image is 108K, and the temperature resolution corresponds to a unit grayscale value is 0.1K.
INFRARED PHYSICS & TECHNOLOGY
(2023)
Article
Instruments & Instrumentation
Wei Zhang, Wenhan Shan, Mengdan Qian, Yufang Liu, Kun Yu
Summary: Thermal radiation regulation technology is crucial for military camouflage and energy utilization. A Mo/Si multilayer film selective thermal emitter is demonstrated for high-temperature infrared stealth application by utilizing tunneling effect and impedance matching. The fabricated emitter shows low emissivity at the atmospheric windows for invisibility and high emissivity at the non-atmospheric window for radiative cooling. The sample exhibits reduced surface temperature and good dissipation ability at high temperature, making it promising for high-temperature infrared stealth technology.
INFRARED PHYSICS & TECHNOLOGY
(2023)
Article
Engineering, Multidisciplinary
Lei Zhang, Qian-Qian Li, Hai-Feng Zhang
Summary: This paper presents a wideband and high-gain circularly polarized antenna array with polarization-reconfigurable characteristics based on solid-state plasma (SSP). The antenna consists of switchable rotating radiation structures and a switchable feed network that simulates different SSP branches. Using characteristic mode analysis (CMA), a reconfigurable circularly polarized element is designed to investigate the CP operating mechanism. A switchable sequential-phase feed network is proposed to provide two rotational excitations independently. The radiation patches use spoof surface plasmon polariton (SSPP) to improve gain and axial ratio bandwidth. The designed 2x2 CP reconfigurable antenna array achieves LHCP and RHCP modes by exciting different SSP branches. The array has an overlapped impedance bandwidth of 61.9% (3.17 to 6.01 GHz) and an overlapped AR bandwidth of 40.2% (4.01 to 6.03 GHz) in two CP states, with a peak gain of 11.68 dBic.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2023)
Article
Engineering, Electrical & Electronic
Ghada Yassin Abdel-Latif, Mohamed Farhat O. Hameed, S. S. A. Obayya
Summary: A novel wavelength-selective thermophotovoltaic (TPV) emitter based on cylindrical gear grating of tungsten with SiO2 spacer is proposed in this study, exhibiting high emissivity. By utilizing the LC model and studying oblique incidence at different polarizations, high emissivity properties over a wide range of spectra have been achieved.
OPTICAL AND QUANTUM ELECTRONICS
(2021)
Article
Optics
Song Zhu, Wenyu Wang, Linhao Ren, Chaoyang Gong, Yu-Cheng Chen, Lei Shi, Xinliang Zhang
Summary: The generation of EIT and EIA effects in optical cavity systems has various applications, including quantum interference effects, slow light, and light storage. This study proposes and demonstrates TGIT and TGIA effects in a single microcavity, induced by a unique temperature gradient. The platform also enables direct temperature readout with high resolution using photonic barcodes based on TGIT (or TGIA), offering a novel and efficient scheme for dynamic mode coupling in applications like light storage and temperature detection.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Zhiyi Yuan, Shih-Hsiu Huang, Zhen Qiao, Pin Chieh Wu, Yu-Cheng Chen
Summary: Manipulating the polarization states of microlasers is important for optical and biological applications. This study investigates the manipulation of laser polarization using metasurfaces in an active optical cavity, resulting in polarized lasing emission with high purity and controllability. The findings provide insights into laser physics and open possibilities for integrating metasurfaces into microlasers.
Review
Chemistry, Multidisciplinary
Guocheng Fang, Yu-Cheng Chen, Hongxu Lu, Dayong Jin
Summary: Multicellular spheroids and organoids are promising models in personalized medicine and drug screening, replicating the structural and functional characteristics of human organs. Microfluidic technology and micro-nano fabrication meet the high requirements of engineering approaches in spheroids and organoids research. This review discusses how spheroids- and organoids-on-a-chip technology facilitates their establishment, expansion, and application through spatial-temporal control, mechanical cues modeling, high-throughput analysis, co-culture, multi-tissue interactions, biosensing, and bioimaging integration. The potential opportunities and challenges in developing spheroids- and organoids-on-a-chip technology are also highlighted.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Cardiac & Cardiovascular Systems
Weitang Qi, Lutong Pu, Jinquan Zhang, Hongyu Chen, Zihuan Tang, Jie Wang, Yuchi Han, Yucheng Chen
Summary: This study aimed to validate the effectiveness of the 2014 ESC guideline, 2020 AHA/ACC guideline, and 2022 ESC guideline in stratifying the SCD risk of Chinese HCM patients. The results showed that the 2020 AHA/ACC guideline performed better in identifying high-risk groups and had higher sensitivity for SCD risk stratification in Chinese HCM patients than the other two guidelines. The 2014 ESC guideline had lower accuracy.
CURRENT PROBLEMS IN CARDIOLOGY
(2023)
Article
Telecommunications
Yucheng Chen, Chenyuan Feng, Daquan Feng
Summary: With growing concern on data privacy, implementing RS in a federated learning (FL) manner is proposed as an efficient approach to tackle the risk of privacy disclosure. However, most related works ignore the communication efficiency and are not suitable for large-scale networks. To address these issues, we propose a privacy-preserving hierarchical federated collaborative filtering scheme for the RS, which maintains good recommendation accuracy, preserves data privacy, and reduces communication overhead.
IEEE COMMUNICATIONS LETTERS
(2023)
Article
Biophysics
Kuo-An Hung, Yi-Wei Hsu, Yu-Cheng Chen, Tzu-Ping Lin
Summary: High temperatures have become common in cities and agricultural areas in Taiwan, especially affecting the city of Tainan, which relies on agriculture as its primary industry. The study focuses on asparagus cultivation in greenhouses and explores the optimal growth environment using drip irrigation with temperature adjustment. The findings show a correlation between asparagus yield and temperature/soil moisture content, and implementing the drip irrigation system can save water and increase average yield.
INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
(2023)
Article
Optics
Lu-Ting Chou, Hao-Hsuan Hung, Ai-Yin Liu, Shao-Hsuan Wu, Je-Chi Jang, Dong-Lin Zhong, Hui-Hsin Hsiao, Shih-Hsuan Chia
Summary: This work proposes a simple approach to independently manage a femtosecond source's spectral location and bandwidth. Self-phase-modulation-enabled spectral broadening is first analyzed, and a toy model is introduced to predict broadband spectral tuning. Bandwidth-dependent third-harmonic generation spectroscopy is performed, and the impact of laser bandwidth and pulse duration on two-photon images is investigated.
LASER & PHOTONICS REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Ziyihui Wang, Guocheng Fang, Zehang Gao, Yikai Liao, Chaoyang Gong, Munho Kim, Guo-En Chang, Shilun Feng, Tianhua Xu, Tiegen Liu, Yu-Cheng Chen
Summary: Self-propelled micro/nanomotors are used as intelligent sensors for analyzing extracellular biomarkers. A strategy is introduced to amplify subtle signals by coupling strong light-matter interactions on micromotors. A smart whispering-gallery-mode microlaser is demonstrated to analyze extracellular biomarkers in complex environments, providing exclusive molecular labels for cellular profiling of exosomes derived from 3D multicellular cancer spheroids. The proposed autonomous microlaser exhibits promising applications in drug screening, phenotyping, and organ-on-chip applications.
Letter
Cardiac & Cardiovascular Systems
Jie Wang, Yuchi Han, Yucheng Chen
JACC-CARDIOVASCULAR IMAGING
(2023)
Article
Materials Science, Multidisciplinary
Shijia Cheng, Zhen Qiao, Zeng Wang, Lian Xiao, Subhasis Das, Yi Tian Thung, Zhiyi Yuan, Van Duong Ta, Weijun Fan, Yu-Cheng Chen, Handong Sun
Summary: Inorganic metal halide perovskites, such as CsPbX3, have gained significant interest for their potential in high-performance optoelectronic devices. A solid-state space-confined strategy was developed to grow CsPbBr3 films, overcoming the limitations of the liquid phase-based methods. The resulting CsPbBr3 films exhibited regular shapes and demonstrated effective laser functionalities under optical pumping.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Optics
Zhen Qiao, Zhiyi Yuan, Song Zhu, Chaoyang Gong, Yikai Liao, Xuerui Gong, Munho Kim, Dawei Zhang, Yu-Cheng Chen
Summary: This study presents a strategy to generate OAM microlasers with tunable degree of chirality and large quantum numbers using a ring-structured Fabry-Perot microcavity with nanoscale symmetry-broken geometry. The asymmetry factor of the OAM laser can be continuously tuned by manipulating the optical pump positions. The study also demonstrates high-order OAM lasers with tunable quantum numbers and accomplishes multivortex laser generation on-chip in spatial and temporal domains.
Editorial Material
Cardiac & Cardiovascular Systems
Ziqian Xu, Chao Gong, Yucheng Chen
Article
Optics
Mostafa Taheri, Yucheng Chen, Chongqi Zhang, Zahra Rasooli Berardehi, Majid Roohi, Mohammad Hassan Khooban
Summary: In recent years, fractional order Laser chaotic systems have gained popularity in both theory and applications, and various classes of these systems have been introduced. This paper presents a novel finite-time sliding mode control (SMC) methodology to synchronize a class of unknown fractional order (FO) Laser chaotic systems with input saturation. The proposed method is based on the FO version of the Lyapunov stability theorem and effectively suppresses chaotic behavior without undesirable chattering. It is demonstrated by applying the method to a chaotic FO Laser system and using it for encrypting/decrypting color pictures.
Article
Physics, Multidisciplinary
Yu-Cheng Chen, Yu-Qin Chen, Alice Hu, Chang -Yu Hsieh, Shengyu Zhang
Summary: Quantum computers have the potential to greatly enhance the ground-state preparation of difficult Hamiltonians in chemistry and physics. The study proposes a Lyapunov control-inspired strategy to accelerate the imaginary-time method and provides theoretical understanding and dynamic process visualization to explain the acceleration. The introduction of a variational form of the algorithm enables it to work with shallow quantum circuits, making it accessible in the era of noisy intermediate-scale quantum computers.
PHYSICAL REVIEW RESEARCH
(2023)
Article
Optics
Chaoyang Gong, Xi Yang, Shui-Jing Tang, Qian-Qian Zhang, Yanqiong Wang, Yi-Ling Liu, Yu-Cheng Chen, Gang-Ding Peng, Xudong Fan, Yun-Feng Xiao, Yun-Jiang Rao, Yuan Gong
Summary: This study reports the development of submonolayer lasers on optical fibers as ultrasensitive and disposable biosensors for biomarker detection, which offers great potential in early diagnosis.
LIGHT-SCIENCE & APPLICATIONS
(2023)
