Article
Engineering, Electrical & Electronic
Xiaowei Wang, Ningfang Song, Jing Jin, Zuchen Zhang, Xiaxiao Wang, Zhuo Chen
Summary: In this study, a temperature correlation effect of transverse magneto-optic error (TMOE) in miniaturized fiber optic gyroscopes (FOGs) is proposed, and a theoretical model based on mode perturbation and temperature correlation terms is established. Through experiments and analysis, it is confirmed that the TMOE of polarization-maintaining fibers and photonic-crystal fibers is correlated to temperature.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Article
Engineering, Electrical & Electronic
Qiaoling Chen, Wenlong Yang, Lijie Zhang, Changxu Li, Chenshuai Guan, Yanling Xiong, Yuqiang Yang, Linjun Li
Summary: The proposed fiber-optic sensor with Taper-MMF-FCF-MMF (T-MFM-F) structure wrapped in PDMS has high temperature sensitivity. By introducing a tapered area and sensitizing with PDMS, the sensor achieved a temperature sensitivity about 6 times higher than the original sensor. The structure excites more cladding modes, resulting in a higher extinction ratio and stronger evanescent field compared to the MFM fiber structure.
OPTICAL FIBER TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Wenlong Yang, Changxu Li, Min Wang, Xiaoyang Yu, Jianying Fan, Yanling Xiong, Yuqiang Yang, Linjun Li
Summary: A novel high sensitivity temperature sensor was developed based on PDMS coated Multi-Thin-Multi mode Fiber, which significantly improved the temperature sensitivity of the optical fiber by coating the sensing part with PDMS. The sensor demonstrated good stability in temperature stability experiments, with the temperature sensitivities improving by 1.6 and 2.5 times after the fiber was coated.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Yinggang Liu, Liang Huang, Jingfei Dong, Bowen Li, Xiaoya Song
Summary: The proposed fiber-optic sensor based on temperature-sensitive material demonstrates high temperature sensitivity and reliability, making it suitable for temperature sensing applications.
OPTICAL FIBER TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Tutao Wang, Yaya Mao, Bo Liu, Lilong Zhao, Jianxin Ren, Jiewen Zheng, Yibin Wan
Summary: This paper presents an optical fiber sensor based on the parallel Vernier effect for temperature and transverse load measurement. The sensor consists of a novel compact fiber Michelson interferometer (MI) and a closed-cavity Fabry-Perot interferometer (FPI) connected in parallel, allowing for independent measurement of different physical parameters and improved sensitivity.
IEEE PHOTONICS JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Wenwen Ma, Zhihua Shao, Wenlu Zhang, Xueguang Qiao
Summary: An optical fiber Fabry-Perot interferometer (FPI) ultrasound sensor based on a polydimethylsiloxane (PDMS) diaphragm with dual circular holes was proposed and experimentally demonstrated. The ultrasound response was enhanced by optimizing the center distance of the dual holes.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Review
Engineering, Electrical & Electronic
Gaopeng Wang, Jixiang Dai, Minghong Yang
Summary: Optical fiber hydrogen sensors have gained attention for their intrinsic safety features, with various types proposed over the past three decades. This review focuses on five representative types of hydrogen sensors based on Pd alloy or WO3 sensitive materials, critically examining their structures, characteristics, and sensing performances.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Maolin Dai, Zhenmin Chen, Yuanfang Zhao, Xin Mu, Xuanyi Liu, M. S. Aruna Gandhi, Qian Li, Shengzhen Lu, Shen Liu, H. Y. Fu
Summary: The highly-sensitive temperature sensor based on the Vernier effect utilizes a tunable extrinsic Fabry-Perot interferometer and a fixed reflective Lyot filter to achieve controllable sensitivity. By modulating the cavity length of the FPI, different temperature sensitivities can be achieved, magnifying the sensitivities compared to a single sensing element. The proposed sensor is feasible for practical applications requiring different temperature sensitivities in demanded temperature detection ranges.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Han Zhang, Chao Jiang, Xiping Zhu, Jin Hu, Pei Wang, Hong Li, Simei Sun, Tingshui Cao
Summary: We have designed a highly sensitive optical fiber transverse load and axial strain sensor based on the cascaded Fabry-Perot (F-P) cavity and fiber Sagnac loop. The sensitivities of transverse load and axial strain are significantly improved by using the optical Vernier effect. The sensor has the potential for small load and small strain monitoring.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Abian B. Socorro-Leranoz, Silvia Diaz, Silvia Castillo, Uilian J. Dreyer, Cicero Martelli, Jean Carlos Cardozo da Silva, Itziar Uzqueda, Marisol Gomez, Carlos R. Zamarreno
Summary: This study reports the development of an optical system based on parallel Fiber Bragg Gratings (FBGs) for monitoring the movements of the wrist and fingers. The system consists of reflective FBGs detecting finger movements and a reference FBG located on the wrist, all multiplexed to collect basic hand movements. Experimental results show that the system can monitor hand positions and be used for rehabilitation of patients with neuromotor or post-stroke diseases.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Luo Wei, Haihui Li, Taotao Hu, Rao Fu, Yang Zhao, Tonglei Cheng, Xin Yan
Summary: A novel combination of structural design and sensing theory is proposed for an optical fiber sensor based on the Mach-Zehnder interferometer (MZI) and Faraday rotation effect, which can measure both magnetic field and temperature. The sensor demonstrates high temperature sensitivity, as confirmed by experimental verification. The temperature sensitivity of the sensor is -846 pm/°C within a range of 20°C to 35°C, and the magnetic field intensity sensitivity is 190 pm/Gs within a range of 0-150 Gs. The sensor's temperature and magnetic field intensity responses are linear and optimized for sensitivity demodulation. It is well-suited for standardized monitoring of temperature and magnetic field in applications requiring accurate measurements.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
G. Woyessa, A. Theodosiou, C. Markos, K. Kalli, O. Bang
Summary: This research demonstrates the use of low loss commercially available multi-mode perfluorinated polymer optical fibers for robust and reliable fiber Bragg grating sensing. The single peak FBG reflection spectrum achieved through tapering the fiber and inscribing the FBG allows for high sensitivity strain and humidity measurements. The approach enables multi-point strain sensing at 1550 nm over long distances and combines the advantages of single mode POFs and MM POFs.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Materials Science, Composites
Zixuan Chen, Zetian Yang, Tianyu Yu, Zhibiao Wei, Chao Ji, BinBin Zhao, Tao Yu, Weidong Yang, Yan Li
Summary: This study presented a novel flexible and sandwich-structured polydimethylsiloxane (PDMS)@graphene sensor for diverse applications. The PDMS@graphene sensor exhibited resistivity dependence on temperature and strain changes, with a monitoring temperature range of -40 to 300 degrees C and a superlative thermal index of 12015.86 K. The sensor achieved a monitoring resolution of 0.5 degrees C for temperature and 0.0625% for strain, indicating its excellent repeatability. Thus, the innovative flexible PDMS@graphene sensor holds great potential in various fields such as structural components, biomedicine equipment, smart wearable textiles, and safety monitoring.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Xiaoli Zhang, Xinlei Zhou, Shuo Wang, Pengcheng Tao, Fengxiang Ma, Qingxu Yu, Wei Peng
Summary: This article presents a miniature fiber optic transverse load sensor based on a bubble microcavity. It features small size, low cost, easy fabrication, high sensitivity, and low temperature sensitivity, making it highly promising for transverse load sensing.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Chemistry, Analytical
Seyoung Park, Soo-Min Lee, Jin-Kyo Jeong, Donggu Kim, Hyunsoo Kim, Hyun-Sook Lee, Wooyoung Lee
Summary: The study revealed that the sensing performance of the Pd nanogap sensor on a PDMS substrate is influenced by the thermal expansion/contraction properties of PDMS, making it more suitable for detecting H-2 at subzero temperatures. The sensor also showed excellent reproducibility for hundreds of sensing cycles and stability to high humidity at 25 degrees C.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Engineering, Environmental
Shuo Zhao, Zheyu Li, Suyao Yin, Qi-dai Chen, Hong-bo Sun, Liping Wen, Lei Jiang, Kai Sun
Summary: Biomimetic materials that mimic competitive interactions in ecosystems offer a promising solution to address bacterial resistance. This study demonstrates the feasibility of using spiny particles to compete with bacteria for nutrients and inhibit their growth without inducing bacterial resistance. The material also shows good biocompatibility, making it a potential candidate for applications in reducing bacterial resistance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Guan-Yao Huang, Linhan Lin, Shuang Zhao, Wenbin Li, Xiaonan Deng, Simian Zhang, Chen Wang, Xiao-Ze Li, Yan Zhang, Hong -Hua Fang, Yixuan Zou, Peng Li, Benfeng Bai, Hong -Bo Sun, Tairan Fu
Summary: Excitons are quasi-particles composed of electron-hole pairs and play a crucial role in determining the optical properties of monolayer TMDs. Manipulating their charge states in a reversible manner remains challenging. By utilizing femtosecond-laser-driven atomic defect generation, electron transfer, and surface molecular desorption/adsorption, we have developed an all-optical approach to control the charge states of excitons in monolayer MoS2, enabling reconfigurable optical encoding.
Article
Chemistry, Multidisciplinary
Han-Wen Zhang, Yan-Gang Bi, Dong-Ming Shan, Zhi-Yu Chen, Yi-Fan Wang, Hong-Bo Sun, Jing Feng
Summary: Flexible perovskite solar cells (FPSCs) have attracted attention for their potential applications in next generation electronics, but the current transparent conductive electrodes (TCEs) hinder their flexible performance. In this study, a hybrid electrode (PUA/AgNWs/PH1000) consisting of a thin layer of silver nanowires (AgNWs) on a flexible substrate (PUA) modified with a conductive layer (PH1000) was proposed. This electrode showed high optical transmittance, electrical conductivity, and mechanical flexibility. When used in FPSCs, the ITO-free devices with the hybrid electrode exhibited desired flexibility and mechanical stability, retaining 77.4% of their initial power conversion efficiency after 10,000 bending cycles with a bending radius of 5 mm.
Article
Optics
Ze-Zheng LI, Yang Ouyang, Zhong-Tian LI, Zhen-Nan Tian, Xu-Lin Zhang, Qi-Dai Chen, Hong-Bo Sun
Summary: The implementation of a three-dimensional linear polarized LP11 mode converter using a femtosecond laser direct writing technique is a significant method to improve the capability of photonic circuits. The converter includes multi-mode waveguides, symmetric Y splitters, and phase delaying waveguides. The on-chip generation of LP11a and LP11b modes with relatively low insertion loss provides a foundation for high-order mode generation and mode conversion in 3D photonic circuits, playing a crucial role in mode coding and decoding.
Article
Chemistry, Physical
Lei Wang, Dan Wang, Yang Luo, Chen-Yu Xu, Lin Cui, Xian-Bin Li, Hong-Bo Sun
Summary: Electronic states are closely related to chemical compositions and play a crucial role in manipulating the properties of matter. In this study, the critical evolution stages of electronic states for monolayer WSe2 near the modification threshold were observed using broadband femtosecond transient absorption spectroscopy, confirming the intense femtosecond-laser-assisted oxygen-doping mechanism.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Ming-Yu Ma, Nian-Ke Chen, Dan Wang, Dong Han, Hong-Bo Sun, Shengbai Zhang, Xian-Bin Li
Summary: Using first-principles calculations, this study systematically investigates the properties of intrinsic defects and extrinsic dopants in monolayer AgI, revealing that Ag vacancy (VAg) and Be substitution on Ag site (BeAg) are the most promising p-type and n-type doping candidates, respectively, laying the foundation for the development of 2D electronic devices.
MATERIALS TODAY NANO
(2023)
Article
Chemistry, Multidisciplinary
Shu-Yu Liang, Yue-Feng Liu, Zhi-Kun Ji, Shen-Yuan Wang, Hong Xia, Hong-Bo Sun
Summary: Researchers have developed a femtosecond laser-induced forward transfer (FsLIFT) technology for programmable fabrication of high-resolution full-color perovskite quantum dot (PQD) arrays and arbitrary micropatterns. This technology does not require chemical reagent treatment or mask contact, ensuring the preservation of the photophysical properties of PQDs. The high-resolution PQD array achieved using FsLIFT can facilitate the development of diverse practical applications based on patterned PQDs.
Article
Chemistry, Multidisciplinary
Xiao-Jie Wang, Shuang Zhao, Hong-Hua Fang, Renhao Xing, Yuan Chai, Xiao-Ze Li, Yun-Ke Zhou, Yan Zhang, Guan-Yao Huang, Cong Hu, Hong-Bo Sun
Summary: Laser-induced quantum emitters in aluminum nitride demonstrate robust emission with strong zero phonon line, narrow line width, and weak phonon side bands. These results illustrate the potential of laser writing to create high-quality quantum emitters for quantum technologies and provide further insight into laser writing defects in relevant materials.
Article
Chemistry, Multidisciplinary
Jian-Guan Hua, Hang Ren, Jiatai Huang, Mei-Ling Luan, Qi-Dai Chen, Saulius Juodkazis, Hong-Bo Sun
Summary: Femtosecond lasers enable flexible and thermal-damage-free ablation of solid materials, but true 3D nano-sculpturing has not been achieved due to technical challenges. This article proposes a new technique using cavitation dynamics and backside ablation to achieve stable material removal for precise 3D fabrication. With this technique, 3D devices with surface roughness less than 10 nm can be produced, enabling novel structural and functional micro-nano optics and non-silicon micro-electro-mechanical systems.
Article
Optics
Ze-Zheng Li, Zhen-Nan Tian, Zhong-Tian Li, Yang Ouyang, Qi-Dai Chen, Hong-Bo Sun
Summary: The composite waveguide method is proposed to increase the range of photon propagation constant beta, which significantly expands the variation range of beta. With this method, the researchers successfully constructed the most compact FsLDW directional couplers and achieved the reconstruction of the Hamiltonian of a Hermitian array. This study represents a further step towards fine control of waveguide coupling and compact integration of FsLDW photonic integrated circuits.
PHOTONICS RESEARCH
(2023)
Article
Physics, Applied
Xiao-Jie Wang, Jia-Tai Huang, Hong-Hua Fang, Yun Zhao, Yuan Chai, Ben-Feng Bai, Hong-Bo Sun
Summary: By using dielectric microspheres for laser focusing, we have successfully created high brightness single-photon emitters in hexagonal boron nitride and enhanced the emission via photonic coupling. This approach provides a feasible way to generate high-performance single-photon emitters while enabling precise coupling with optical resonators.
APPLIED PHYSICS LETTERS
(2023)
Article
Optics
Xue-Peng Pan, C. A. Sun, Shan-Ren Liu, B. O. Wang, Meng-Meng Gao, Q. Guo, Qi-Dai Chen, Hong-Bo Sun, Yong-Sen Yu
Summary: This paper proposes and demonstrates a novel high-sensitivity temperature sensor based on a chirped thin-core fiber Bragg grating Fabry-Perot interferometer (CTFBG-FPI) and the Vernier effect. Two CTFBG-FPIs with different interferometric cavity lengths are inscribed inside a thin-core fiber using femtosecond laser direct writing technology to form a Vernier effect system. The measured temperature sensitivity of this sensor is -1.084 nm/degrees C in a range of 40-90 degrees C. This sensor is expected to play a crucial role in precision temperature measurement applications.
Article
Chemistry, Physical
Monan Liu, Qing Wang, Ai-Wu Li, Hong-Bo Sun
Summary: This article summarizes recent research and proposes an all-light solution using graphene-oxide-based soft robots. The study demonstrates that lasers can precisely define actuators to form joints and facilitate efficient energy storage and release, enabling complex motion control.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Optics
Dong-Dong Han, Yong -Lai Zhang, Zhao-Di Chen, Ji-Chao Li, Jia-Nan Ma, Jiang -Wei Mao, Hao Zhou, Hong -Bo Sun
Summary: This article reports a moisture responsive shape-morphing slippery surface that enables simultaneous moisture responsive shape-morphing and oil-lubricated water repellency. It is prepared by creating biomimetic microstructures on graphene oxide membrane and subsequent lubricating with a thin layer of oil on the laser structured reduced GO surface. The integration of this surface with an LRGO/GO bilayer actuator enables droplet sliding ability and enhanced moisture deformation performance, demonstrating versatility for active/passive trapping, droplet manipulation, and sensing.
OPTO-ELECTRONIC ADVANCES
(2023)
Article
Engineering, Electrical & Electronic
Xiao-Liang Ge, Jun-Hao Yang, Hang Ren, Zhi-Jun Qin, Qi-Dai Chen, Dong-Dong Han, Yong-Lai Zhang, Su Xu, Hong-Bo Sun
Summary: This study demonstrates the first experimental application of self-superhydrophobic antennas, which can maintain stability in terms of return loss, radiation pattern, and efficiency across multiple frequency bands. The compatibility of writing hydrophobic nanostructures on both dielectrics and metals with commercial printed circuitry techniques makes this technique a powerful and generalized solution for all-weather wireless communication systems.
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER
(2023)
