Article
Chemistry, Multidisciplinary
Maria Losurdo, Yael Gutierrez, Alexandra Suvorova, Maria M. Giangregorio, Sergey Rubanov, April S. Brown, Fernando Moreno
Summary: This study demonstrates the use of plasmonic gallium nanoantennas as nanoreactors on sapphire to achieve direct plasmon-enhanced photocatalysis for hydrogen sensing, storage, and spillover. The plasmon-catalyzed electron transfer between hydrogen and the nanoparticles activates localized reaction pathways at specific sites. The platform enables fast and sensitive hydrogen sensing with stability and reusability over a wide temperature range.
ADVANCED MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Lars J. Bannenberg, Herman Schreuders, Nathan van Beugen, Christy Kinane, Stephen Hall, Bernard Dam
Summary: In the future hydrogen economy, accurate, cost-efficient, and safe hydrogen sensors based on metal hydrides will be important. Alloying can tune the properties of hydrogen-sensing materials, as demonstrated by thin films of tantalum doped with ruthenium. The alloying effects include modifying the enthalpy of hydrogenation, shifting the pressure window for hydrogen absorption, and reducing the amount of hydrogen absorbed by the material, allowing for tunable sensitivity and a wide sensing range.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Electrical & Electronic
Yiling Liu, Yanqiong Wang, Xi Yang, Chao-Yang Gong, Yuan Gong
Summary: This review article summarizes the recent advances in optofluidic lasers (OFLs) and their applications in biochemical analysis. OFLs achieve high performance in bio-chemical sensing due to the strong light-matter interaction in the laser cavity. The physical mechanisms, structure, and materials used in OFLs to achieve high sensitivity, disposability, fast response, and high throughput are discussed, as well as the inter-relationship between these performance indicators. The effects of new materials and a comparison with other optical biochemical sensors are also presented, along with the prospects of OFLs.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Feng Xu, Jun Ma, Can Li, Churong Ma, Jie Li, Bai-Ou Guan, Kai Chen
Summary: This paper presents a hydrogen sensor based on a Fabry-Perot cavity, with a key component of a freestanding palladium membrane. The sensor detects hydrogen concentration by measuring the wavelength shift of the interference spectrum between the reflective mirrors. Experimental results demonstrate high sensitivity and detection limit of the sensor.
Article
Engineering, Electrical & Electronic
Shen Liu, Peijing Chen, Junxian Luo, Yanping Chen, Bonan Liu, Hang Xiao, Wenqi Yan, Wei Ding, Zhiyong Bai, Jun He, Yiping Wang
Summary: Monitoring electric current is crucial for the reliable operation of power systems and electronic equipment. This study presents an optomechanical cavity-based resonator for current sensing, which shows high sensitivity, short response time, low power consumption, and a compact structure. It is expected to have applications in high precision current and magnetic field sensing.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Paulo Robalinho, Beatriz Soares, Antonio Lobo, Susana Silva, Orlando Frazao
Summary: This paper presents a different Fiber Loop Mirror (FLM) configuration with two circulators, and demonstrates its use for strain and torsion discrimination. The configuration achieves high sensitivity in strain measurement and torsion characterization. It allows for control of the free spectral range (FSR) and achieving refractive index differences higher than 10(-2), making it essential for high sensitivity physical parameter sensors.
Review
Chemistry, Analytical
Cristiano Pendao, Ivo Silva
Summary: Optical fiber sensors have several advantages over other types of sensors due to their small size, lightweight, resistance to high temperatures and pressure, and electromagnetic passivity. They utilize the properties of light to measure parameters such as temperature, strain, or angular velocity. Optical fiber sensors find applications in various fields, including periodic monitoring, hazardous environments, structural and engine monitoring, clothing applications, and health monitoring and assistance.
Article
Engineering, Electrical & Electronic
Meysam M. Keley, Fabricio F. Borghi, Regina C. Allil, Alexandre Mello, Marcelo M. Werneck
Summary: A Plastic Optical Fiber (POF) coated with a thin film of copper oxide was developed as a hydrogen sulfide gas sensor. The sensor, functioning at room temperature without the need for a heating system, demonstrated remarkable selectivity and sensitivity to H2S.
OPTICAL FIBER TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Na Zhao, Qijing Lin, Liangquan Zhu, Changsheng Li, Zhongkai Zhang, Kun Yao, Yi Chen, Bian Tian, Ping Yang, Zhuangde Jiang
Summary: A sapphire optical fiber blackbody radiation sensor has been developed based on a high-temperature multilayer structure. It uses tungsten and aluminum oxide films deposited on a sapphire fiber to measure temperature. The sensor has a compact structure, large measuring range, and good linearity, making it suitable for sensing and measurement in extreme high-temperature environments.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Review
Chemistry, Inorganic & Nuclear
Shuyu Qian, Ziping Wang, Zhongxiang Zuo, Xiaomeng Wang, Qing Wang, Xun Yuan
Summary: Metal nanoclusters (MNCs) show promising potential for diverse sensing applications, but there is an urgent need for a systematic summary on their physicochemical properties, synthetic strategies, and sensing mechanisms to facilitate their broader utilization in various fields.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Nanoscience & Nanotechnology
Ravindra Kumar Jha, Meenu Murali, Navakanta Bhat
Summary: The usability of triphenylene ligand-based metal-organic frameworks (MOFs) as gas sensing elements in chemiresistive devices was investigated, revealing that the ratio of metal ions directly influences the sensing capabilities, and rational variations in metal content can lead to the development of highly selective and sensitive sensors.
Article
Optics
Yu Wang, Yaxi Yan, Zhengang Lian, Daru Chen, Alan Pak Tao Lau, Chao Lu
Summary: In this paper, a highly sensitive relative humidity sensor based on Fabry-Perot interferometers is proposed and demonstrated experimentally. The sensor combines a hollow core Bragg fiber with single mode fiber and is functionalized with chitosan and ultraviolet optical adhesive to enhance the humidity sensitivity. The sensor shows a high sensitivity and multiplexing capability, making it a promising candidate for RH monitoring.
Article
Instruments & Instrumentation
Wei Jin, Haihong Bao, Pengcheng Zhao, Yan Zhao, Yun Qi, Chao Wang, Hoi Lut Ho
Summary: The use of micro- and nano-structured optical fibers allows for parts-per-million to parts-per-trillion level gas detection for various gases. Recent developments in optical fiber gas cells and detection systems have focused on direct absorption, photothermal, photoacoustic, and stimulated Raman spectroscopies.
Article
Chemistry, Physical
Mahvash Afzal, Nandlal Gupta, Aashish Mallik, K. S. Vishnulal, Pratibha Sharma
Summary: This study continues the computational analysis of a reactor with hexagonal honeycomb-based heat transfer enhancements, investigating the performance of a metal alloy and the reactor experimentally. It determines the gravimetric capacity and reaction kinetics of the alloy La0.9Ce0.1Ni5, while also exploring the impact of operating conditions on reactor performance. Additionally, evaporative cooling is tested for the first time as a heat removal technique for metal hydride based hydrogen storage reactors and found to significantly improve heat transfer.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Electrical & Electronic
Pierre Travers, Guillaume Arpison, Ines Ghorbel, Yohann Leguillon, Francois Louf, Pierre-Alain Boucard, Vincent Kemlin, Vincent Crozatier
Summary: This paper investigates the strain distribution in a 1 km fiber coil under a 500 Hz vibration using a phase-sensitive optical frequency domain reflectometry system. The system accurately detects the vibrations and mechanical responses of the coil packaging. A qualitative comparison is also made between experimental results and a mechanical simulation of the coil.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Chemistry, Physical
Wei Li, Deyu Xin, Shujie Tie, Jiwei Ren, Siyin Dong, Lin Lei, Xiaojia Zheng, Yiying Zhao, Wen-Hua Zhang
Summary: Direct X-ray detectors based on FA(3)Bi(2)I(9) single crystals show superior stability, sensitivity, and performance compared to traditional amorphous selenium detectors, presenting a promising lead-free material for green and efficient X-ray detection applications.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Physical
Min Zhang, Wei Zhao, Deyu Xin, Lin Lei, Jidong Long, Yiying Zhao, Jianguo Zhu, Xiaojia Zheng, Qi Chen, Wen-Hua Zhang
Summary: The study presented a method for fabricating polycrystalline MAPbI(3) films using solvent-free liquid perovskite molten-salt (PMS), offering reduced toxicity, scalable fabrication, and tunability in film thickness. The use of nylon membrane as a scaffold for the infiltration of PMS resulted in MAPbI(3)-LLP detectors with enhanced material properties, showing good stability and high performance in X-ray and single gammaray photon detection, which could accelerate the adoption of polycrystalline perovskites in X-ray imaging and gamma-ray detection.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Gaocai Li, Chen Zhao, Yang Liu, Jiwei Ren, Ziming Zhang, Haipeng Di, Wei Jiang, Jun Mei, Yiying Zhao
Summary: This study demonstrated high-performance perovskite betavoltaic cells using thick, high-quality, and wide-band-gap MAPbBr(3) polycrystalline films with improved crystallinity through solvent annealing. The optimal MAPbBr(3) betavoltaic cell achieved a power conversion efficiency of 5.35% and a maximum output power of 1.203μW under radiation. These results represent a nearly 50% improvement from previous reports and provide insights into the mechanisms of film-growth processes and device physics for the research community of perovskites and betavoltaics.
Article
Physics, Applied
Chen Zhao, Feiyi Liao, Kezhao Liu, Yiying Zhao
Summary: Betavoltaic batteries are attractive power sources for micro-power systems and applications in extreme environments due to their superlong lifetimes, high energy densities, and impressive environmental adaptability. A device model integrating models of radioactive sources and semiconductor units was proposed in this study to guide the design of high-performance devices. The efficiency of betavoltaic batteries no longer necessarily increases with the width of bandgap, especially considering high-output power sources and semiconductor technology realities.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Deyu Xin, Siyin Dong, Min Zhang, Shujie Tie, Jiwei Ren, Lin Lei, Ping Yu, Jianguo Zhu, Yiying Zhao, Xiaojia Zheng
Summary: Researchers successfully fabricated high-quality MA(3)Bi(2)I(9) films using the cost-effective spraying process and effectively tuned the crystallization process by adding MACl. The resulting film exhibited high carrier mobility and a large activation energy, leading to outstanding optoelectronic characteristics. X-ray detectors made with this film showed superior sensitivity and detection limit compared to commercial detectors.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Physics, Applied
Chen Zhao, Jiwei Ren, Lin Lei, Feiyi Liao, Kezhao Liu, Yiying Zhao
Summary: Low output power has been a limitation for micro-radioisotope batteries, but recent developments in x-ray radioluminescent batteries have shown great potential. Researchers have successfully fabricated an x-ray radioluminescent battery with near milliwatt output power and demonstrated its various potential applications.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Wei Jiang, Jiwei Ren, Haibin Li, Dan Liu, Lijun Yang, Ying Xiong, Yiying Zhao
Summary: This work reports an effective additive of chenodeoxycholic acid (CDCA) that can suppress ion migration and significantly improve the performance and operational stability of FAPbBr(3) single crystals in X-ray detection.
Article
Chemistry, Physical
Bing Ou, Yang Liu, Hao Sun, Zhenning Xing, Haipeng Di, Yingrong Jin, Yiying Zhao
Summary: Modification of electron transport layers is crucial for enhancing the efficiency and stability of perovskite solar cells. This study investigates the distribution and working mechanism of sulfur ions through comparing Na2S-doped and Na2S-coated TiO2 layers, and introduces a deionized-water rinsing process to remove Na and S elements in compacted TiO2 layers. The research provides insights into the passivation mechanism of S2- defects in PSCs and may spur further investigation in the perovskite research community.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Haipeng Di, Chang Lu, Lin Lei, Jiwei Ren, Ying Xiong, Yiying Zhao, Guang Yao, Feiyi Liao
Summary: A dual-mode perovskite X-ray detector is proposed by transferring a two-dimensional (2D) (PEA)(2)PbI4 perovskite microsheet on Au interdigital electrodes, enabling the simultaneous operation of the X-ray detector in direct semiconductor mode and indirect scintillation mode. The detector exhibits good sensitivity and spatial resolution, offering a new pathway for high sensitivity and spatial resolution 2D perovskite dual-mode radiation detectors.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Zhenning Xing, Bing Ou, Hao Sun, Haipeng Di, Yingrong Jin, Ying Xiong, Feiyi Liao, Yiying Zhao
Summary: Sulfur has been found to effectively passivate the TiO2 electron transport layer and improve the performance of perovskite solar cells. Experimental results show that sulfide and thiosulfate can enhance the grain size of perovskite layers and reduce defect density at the TiO2/perovskite interface, leading to improved device efficiency and stability. However, sulfate has little or even negative effects on the solar cells' performance.
Article
Chemistry, Multidisciplinary
Dan Liu, Haipeng Di, Jiwei Ren, Wei Jiang, Haibin Li, Chen Zhao, Deyu Xin, Zhenning Xing, Xiaojia Zheng, Yiying Zhao
Summary: This study focuses on X-site substituted 2D RP perovskite Cs2Pb(SCN)(2)Br-2, and systematically investigates its applications in X-ray detection. The results demonstrate that Cs2Pb(SCN)(2)Br-2 wafer detectors show superior performance, including high sensitivity, low limit of detection, and good imaging ability, as well as excellent operational stability under high working field.
Article
Chemistry, Physical
Haibin Li, Ziming Zhang, Wei Jiang, Chen Zhao, Haipeng Di, Jiwei Ren, Bing Ou, Ying Xiong, Feiyi Liao, Yiying Zhao
Summary: In this study, the ion migration and defect density in MAPbX(3) perovskite single crystals were suppressed by lowering the growth temperature to 4℃. The resulting MAPbBr(3) single crystals exhibited low defect density and weak ion migration, leading to good X-ray detection performance under higher bias voltage.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Bo-Han Li, Huang Li, Haipeng Di, Zhipeng Xuan, Wen Zeng, Jia-Cheng Wang, Da-Bing Cheng, Chuanyao Zhou, Xingan Wang, Yiying Zhao, Jingquan Zhang, Zefeng Ren, Xueming Yang
Summary: In this study, the carrier density-dependent dynamics in hybrid lead iodide perovskites were investigated using a highly sensitive transient absorption spectrometer. It was found that PbCl2 passivation can effectively reduce both shallow and deep trap densities. These results provide important insights for photovoltaic and optoelectronic applications under sunlight.
Article
Optics
Zhi-Huan Pang, Meng Liu, Ai-Ping Luo, Yi Xu, Wen-Cheng Xu, Songnian Fu, Zhi-Chao Luo
Summary: We propose a novel mode-dependent gain equalizer using a few-mode chirped fiber Bragg grating (FM-CFBG) to effectively mitigate the mode-dependent gain in an all-fiber 2-mode EDFA. The equalizer based on FM-CFBG offers compact size, low insertion loss, and wavelength scalability, making it meaningful for long-haul MDM transmission.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Yiwei Qiu, Chenliang Ding, Gangyao Zhan, Mengdi Luo, Jisen Wen, Mengbo Tang, Chun Cao, Wenjie Liu, Liang Xu, Bihu Lv, Dazhao Zhu, Cuifang Kuang, Xu Liu
Summary: This article proposes a novel method to simultaneously reduce the axial and lateral feature sizes of PPI-DLW. By employing a pseudo 3D hollow focus, a suspended nanowire with an isotropic 30-nm feature size was realized, thereby improving the capabilities of PPI-DLW for fabricating arbitrary 3D structures.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Manzhuo Wang, Jianbo Yue, Zhentao Yao, Tingyu Liu, Xiaoqiang Sun, Yuanda Wu, Daming Zhang
Summary: A silica waveguide 1×8 thermo-optic switch consisting of cascaded three-stage Mach-Zehnder interferometers (MZIs) is successfully demonstrated. The switch utilizes a multimode interference (MMI) coupler in the MMI-MZI 1×2 switch unit for its wavelength insensitivity and favorable fabrication tolerance. The switch design and optimization is based on the beam propagation method (BPM) and implemented using standard CMOS technologies. Experimental results show that the switch meets the requirements for insertion loss and crosstalk at 1550 nm wavelength, and also performs well in a wide wavelength range.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
H. M. de la Cruz, E. D. Hernandez-Campos, E. Ortiz-Ricardo, A. Martinez-Borquez, I. Rosas-Roman, V. Contreras, G. Ramos-Ortiz, B. Mendoza-Santoyo, Cecilia I. Zurita-Lopez, R. Castro-Beltran
Summary: Acoustic levitation is an important contactless manipulation technique in various fields. This study presents an affordable phased-array levitator that can stably trap micrometer dye-doped droplets in the air, enabling the creation of microlasers. The levitated microlasers exhibit comparable optical lasing features to On-a-Chip devices, with a maximum Q-factor of approximately 105 and a minimum lasing threshold of approximately 150 nJ cm-2.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Yuqi Wang, Zilong Zhang, Suyi Zhao, Wei He, Xiaotian Li, Xin Wang, Yuchen Jie, Changming Zhao
Summary: This paper investigates the impact of localized defects in SLM devices on structured light generation and demonstrates the reconstructed light field results under different defect states using CGH loaded onto the DMD. The results show that central defects have minimal influence on the reconstructed light field, while edge defects have a significant impact. This study expands the application scenarios for the generation of structured light beams with SLM.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Ashraf A. A. Beshr, Hossam El-Din Fawzy, Ehab A. A. Eldin, Jong Wan Hu, Fathi A. Abdelmgeed
Summary: This paper introduces the application of digital measuring techniques, specifically Digital Close Range Photogrammetry (DCRP), in the detection of deformation in post-tensioned structural elements (PTSEs). The use of digital equipment and a terrestrial laser scanner (TLS) allows for highly accurate monitoring of PTSE camber, with deviations not exceeding 0.01 mm.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Shihao Gou, Danping Huang, Shipeng Liao, Fan Luo, Yang Yuan, Liang Liu, Xiaomei Wen
Summary: This paper proposes an online intelligent detection method for cable pitch defects in the field of optical cable manufacturing. The method utilizes a multi-sensor fusion image acquisition platform and deep learning technology to achieve accurate detection of pitch defects in optical cables.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Tun-Yao Hung, David W. U. Chan, Ching-Wei Peng, Chi-Wai Chow, Hon Ki Tsang
Summary: We present the first experimental demonstration of a high-capacity short-reach optical communication link which utilizes LSTM and DNN to achieve 300 Gbit/s 8-level pulse amplitude modulation (PAM8) generated by a single microring modulator. The experimental results show that 300 Gbit/s and 270 Gbit/s PAM8 modulation can be achieved at back-to-back and after 1 km transmission respectively.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Long Zhang, Li Pei, Jianshuai Wang, Jingjing Zheng, Kaihua Hu, Zhiqi Li, Tigang Ning, Jing Li, Li Zhong, Ruisi He
Summary: The amplification of long-haul mode division multiplexing (MDM) transmission systems is currently achieved through three steps, which can result in complexity and degraded transmission performance. To address this issue, this paper proposes an in-line few-mode erbium-doped fiber amplifier (FM-EDFA) based on cladding pumping, which enables simultaneous amplification and transmission in MDM systems. Experimental results demonstrate that the in-line FM-EDFA has excellent performance and shows great potential for practical long-haul transmission systems.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Chong Wang, Miaomiao Li, Jiahao Yang, Bingli Zhu, Jianghao Han, Wenbin Dang
Summary: This paper introduces the design of drive circuits using step recovery diodes and RF bipolar transistors to produce narrow pulse lasers, achieving the reduction of system size, power consumption and cost.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Ziqian Zhang, Liangyu Zhao, Chaorun Si, Yang Tian, Shilin Xu
Summary: A Hastelloy C276 coating was prepared on a martensitic stainless-steel substrate using laser melting deposition, resulting in a coating with high resistance to cavitation erosion. The coating exhibited a thick, progressively changing grain morphology from bottom to top, and the grains grew in a specific angle to the substrate plane. A compositional mixing zone was formed at the interface, forming a stable metallurgical bond. The coating showed a significantly improved hardness and enhanced resistance to cavitation erosion compared to the substrate.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Cui-Hong Li, Chao-Xiong He, Yuan-Yuan Ma, Jin-Chuan Wang, Ying Dong, Shao-Chong Zhu, Xiao-Wen Gao, Hui-Zhu Hu
Summary: In this paper, a non-contact optical measuring method for characterizing nanoparticles using optical tweezers is presented. The method relies on the optical polarization and scattering of nanoparticles, providing insights into both shape and size parameters. Experimental results show that the method can accurately measure the shape and size of nanoparticles, making it an effective tool for identifying and studying individual nanoparticles.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Magdalena Zieba, Cuma Tyszkiewicz, Katarzyna Wojtasik, Krystian Pavlov, Pawel Chaber, Ewa Gondek, Jacek Niziol, Roman Rogozinski, Pawel Kielan, Pawel Karasinski
Summary: This work presents a study on low-loss waveguide layers for planar evanescent wave sensor applications. Crack-free SiOx:TiOy composite layers with refractive indices of approximately 1.65 were fabricated using a sol-gel method and dip-coating technique. The fabricated layers exhibited good waveguide properties and optical homogeneity.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Yali He, Jiao Tang, Zhongyang Li, Yaowu Hu
Summary: In this paper, a lithography-free broadband absorbing metasurface consisting of Ag nanoparticles with ultrafine nanogaps is demonstrated. The experimental results and numerical simulations show that the horizontally compressed Ag nanoparticles possess smaller nanogaps for high sensitivity, uniformity, and stability. The novel substrate also exhibits insensitivity to the incident or observation angle in an ambient environment and has promising practical applications.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Linqing Li, Chengwei Yang, Zhuo Wang, Kun Xiao, Rui Min
Summary: In this study, a stretchable polymer optical fiber with a sandwich structure was proposed for sleep monitoring. The fiber improved the pressure sensitivity of the mattress and enabled the measurement of respiratory rate, heart rate, and body motion information.
OPTICS AND LASER TECHNOLOGY
(2024)
