Article
Chemistry, Multidisciplinary
Biao Zhang, Chao Yun, Heng Wu, Zijing Zhao, Yi Zeng, Dong Liang, Tong Shen, Jine Zhang, Xiaoxiao Huang, Jiepeng Song, Junjie Xu, Qing Zhang, Ping-Heng Tan, Song Gao, Yanglong Hou
Summary: This research successfully synthesized wedge-shaped ferromagnetic EuS single crystals through a molten-salt-assisted chemical vapor deposition method. The mechanisms of wedge-shaped growth were revealed through theoretical simulations and experimental measurements. The investigation of the nanoflakes demonstrated temperature-dependent properties and showed the potential for studying magnetic properties.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Materials Science, Ceramics
Zhixiang Tao, Ying Song, Zongwei Xu
Summary: This study systematically investigated the vibrational characteristics of sapphire under temperature variation using Raman scattering measurements. The results revealed the linear temperature dependence of phonon mode frequencies at high temperatures and provided corresponding temperature coefficients. Additionally, the study quantified the frequency downshift and linewidth broadening in strain-free sapphire and applied a theoretical model to analyze these phenomena. The findings can contribute to a deeper understanding of the behavior of optical phonons in sapphire and have potential applications in other materials.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
A. R. Zanatta
Summary: The Raman spectrum of lithium niobate (LiNbO3) was investigated at various temperatures and laser spot sizes. The main phonon modes were analyzed in terms of peak position and linewidth, revealing contributions from anharmonic phonon-coupling and thermal lattice expansion processes. The A1(TO4) mode exhibited a peculiar behavior depending on the laser spot size, attributed to the congruent-photorefractive nature of LiNbO3 and changes in polarization geometry.
RESULTS IN PHYSICS
(2023)
Article
Physics, Applied
Wenming Qi, Cuihuan Xie, Anwar Hushur, Seiji Kojima
Summary: In this study, detailed high-pressure Raman scattering studies were conducted on lead-free perovskite piezoceramics KNbO3, and the successive phase transition pressures were precisely determined. Clear evidence of a pressure-induced Fano resonance was discovered based on the pressure-dependent Raman spectra of KNO. These findings highlight the opportunity for designing and tuning the wave transmission and optical switch properties of lead-free piezoceramics KNO via high pressure.
APPLIED PHYSICS LETTERS
(2023)
Article
Nanoscience & Nanotechnology
J. Krustok, R. Kaupmees, X. Li, M. Kauk-Kuusik, M. Grossberg
Summary: The detailed study of photoluminescence of Cu2Ge(S0.4Se0.6)(3) microcrystals reveals temperature and laser power dependencies in the properties of different PL peaks, suggesting potential applications based on the variations in peak characteristics at different temperatures.
Article
Chemistry, Multidisciplinary
Lidong Lu, Yishan Wang, Ce Liang, Jiaming Fan, Xingchen Su, Minnan Huang
Summary: A novel distributed optical fiber temperature sensor based on Raman anti-Stokes scattering light is proposed in this paper. It utilizes the relationship between temperature and power of back-scattered Raman anti-Stokes light to obtain the temperature demodulation algorithm. A new temperature calibration method is also proposed for accurate temperature measurement. The experimental results demonstrate the potential of this system for practical engineering applications and its advantage of avoiding the walk-off effect in commonly used temperature demodulation schemes.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Analytical
Yaser Ghafoori, Andrej Vidmar, Andrej Kryzanowski
Summary: Temperature measurements are important in structural health monitoring. This article introduces the use of optical fiber distributed temperature sensors (DTS) based on Raman spectroscopy for accurate and precise temperature measurements. The manual calibration technique, combined with external temperature sensors, is proposed to improve the calibration of DTS systems, addressing the limitations of existing methods.
Article
Physics, Condensed Matter
Igor Antoniazzi, Natalia Zawadzka, Magdalena Grzeszczyk, Tomasz Wozniak, Jordi Ibanez, Zahir Muhammad, Weisheng Zhao, Maciej R. Molas, Adam Babinski
Summary: The temperature dependence of Raman scattering (RS) in bulk hafnium disulfide (HfS2) is investigated, revealing unexpected energy shifts of the main Raman-active modes at different temperatures, as well as the emergence of a new mode. The optical anisotropy of RS in HfS2 is highly dependent on the excitation energy, and the presence of iodine molecules intercalated in the van der Waals gaps between HfS2 layers is also analyzed for possible effects. The results are discussed in the context of resonant light-phonon interactions.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2023)
Article
Multidisciplinary Sciences
Jie Jiang, Lifu Zhang, Chen Ming, Hua Zhou, Pritom Bose, Yuwei Guo, Yang Hu, Baiwei Wang, Zhizhong Chen, Ru Jia, Saloni Pendse, Yu Xiang, Yaobiao Xia, Zonghuan Lu, Xixing Wen, Yao Cai, Chengliang Sun, Gwo-Ching Wang, Toh-Ming Lu, Daniel Gall, Yi-Yang Sun, Nikhil Koratkar, Edwin Fohtung, Yunfeng Shi, Jian Shi
Summary: This study experimentally investigated the pyroelectric behavior of three different pyroelectric materials at varying thicknesses. The results showed that the pyroelectric coefficient increased rapidly as the thickness of the free-standing sheets decreased. The study also found that materials with chemical bonds along the out-of-plane direction exhibited the greatest dimensionality effect on pyroelectricity.
Article
Engineering, Electrical & Electronic
Bo-Tao Wang, Yan-Xiong Niu, Yu Yang, Tao Liang, Xu-Dong Qin, Ming Ding
Summary: A colorimetric high-temperature sensor based on a sapphire fiber bundle is developed in this work, which detects temperature using the radiation voltage ratio of two neighboring wavelengths. The sensor has the advantages of a wide temperature range and high measuring accuracy, effectively reducing interferences in the measurement process.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Article
Chemistry, Multidisciplinary
Ankita Singh, Ashish Kumar Mishra
Summary: Researchers synthesized different morphologies of 2H-MoS2 nanostructures and utilized them as SERS substrates for the detection of bilirubin and vitamin B-12 biomolecules. They found that the charge transfer (CT) mechanism played an important role in the SERS activity, and this mechanism was more efficient at low temperature.
Article
Chemistry, Physical
Zhuangzhuang Ling, Zhuo Li, Jiuchuan Wang, Huangrong Ge, Jinghuai Fang, Mingfei Cheng, Jing Wu
Summary: This study demonstrates the preparation of a high SERS activity and plasmonic photocatalytic properties nanoarray, SA-Ag/Au HCNAs, by combining Ag/Au hybrid coupled films with a sapphire array. The prepared SA-Ag/Au HCNAs show significantly enhanced plasmonic photocatalytic properties compared to pure Au and pure Ag. They also exhibit good stability and sensitivity as SERS substrates for probe molecules. This work provides a simple, low-cost, and scalable method for the preparation of hybrid coupled nanoarrays with potential applications in photocatalytic dye degradation, environmental monitoring, and biomedical analysis.
APPLIED SURFACE SCIENCE
(2024)
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)
Article
Physics, Applied
Zihan Wang, Yongsong Wang, Xiao Guo, Siwen You, Tianchao Niu, Mianzeng Zhong, Qinglin Xia, Han Huang
Summary: This study investigates the phonon anisotropy in exfoliated b-As flakes using temperature-dependent polarized Raman spectroscopy and reveals the influence of phonon-phonon interactions on the anisotropic behavior. The results show that cubic-phonon decay dominates the phonon-phonon scattering processes at low temperature, while cubic and quartic-phonon decays together play a role at high temperature.
APPLIED PHYSICS LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Guijiang Yang, Hao Wu, Zi Liang, Liang Wang, Changjian Ke, Zhenggang Lian, Qianqing Yu, Zuming Xia, Ming Tang, Deming Liu
Summary: A single-mode Raman gain fiber was designed and fabricated for a Raman distributed temperature sensor with high-precision temperature measurement and low power consumption. The use of fluorine-doped inner cladding was shown to improve acoustic field control and suppress stimulated Brillouin scattering. By utilizing the high Raman gain of the fiber, a significant improvement in signal-to-noise ratio and reduction in temperature uncertainty were achieved, with the sensor consuming only half the power compared to traditional single-mode fiber sensors.
IEEE SENSORS JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Jing Wang, Dong-Xia Wang, Bo Liu, Xiao Jing, Dan-Ye Chen, An-Na Tang, Yun-Xi Cui, De-Ming Kong
Summary: DNA nanotechnology utilizes the unique properties and biocompatibility of DNA to construct structurally-defined supramolecular structures, and it has been widely applied in the field of biosensors. With the continuous development of technology, the assembly methods of DNA nanostructures have become more diverse. This review summarizes the latest construction methods and discusses the problems and future directions in this field.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
S. Bera, B. Liu, Yoosuf N. Picard, B. Howard, M. Buric, P. Ohodnicki
Summary: This work discusses the development of a high temperature stable magnesium aluminate spinel cladding for sapphire fibers, effectively solving the stability problem of single-crystal fibers in harsh environment sensing applications. Experimental results demonstrate that the spinel coating can maintain stability at high temperatures and provide enhanced protection against contamination.
OPTICAL FIBER TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Ya-Xin Wang, Dong-Xia Wang, Jing Wang, Bo Liu, An-Na Tang, De-Ming Kong
Summary: The study developed a highly integrated DNA nanoamplifier by anchoring hairpin probes on the surface of DNA nanolantern, enabling high sensitivity detection of miRNAs. The nanoamplifier showed enhanced signal amplification capability, accelerated reaction kinetics, and enabled miRNA imaging and analysis in living cells and mice.
Article
Construction & Building Technology
W. Cary Hill, Daniel W. Seitz, Matthew S. Hull, Mark L. Ballentine, Alan J. Kennedy
Summary: Thorough investigation and characterization of polymer feedstocks used in 3D printers are crucial as these devices become more common. This study provides unique insights into the effects of different additives on particulate emissions and reveals the potential health implications of agglomeration behavior.
Article
Chemistry, Multidisciplinary
Jingqi Chen, Bo Liu, Xuan Wang, Xueliang Liu, Dandan Yang, Yu Yang
Summary: Nucleic acids, as the hereditary information storage medium, have inherent limitations in their applications. To overcome this, researchers have developed unnatural base pairs and artificial analogues, promoting the development of biomedical sciences.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Article
Optics
Xu Liu, Ruimin Jie, Subhabrata Bera, Taitu Yan, Wei Peng, Ciming Zhou, Yunjiang Rao, Bo Liu
Summary: High temperature monitoring is crucial for the health and performance of essential infrastructure. However, achieving a reliable distributed high temperature sensing system with high speed, high spatial, and temperature resolution simultaneously remains challenging. In this study, a Raman distributed high temperature sensing system with high temperature and spatial resolution was successfully demonstrated in a single-crystal YAG fiber. The system operated from room temperature up to 1400 degrees C with a spatial resolution of 7 cm and response time of 1 millisecond. This system delivers the best spatial resolution and response time reported in literature.
Article
Chemistry, Analytical
Jia-Yi Ma, Bo Liu, Shabib Raza, Hong-Xin Jiang, An-Na Tang, De-Ming Kong
Summary: CRISPR/Cas12a-based biosensors were developed for the detection of HOCl and MPO. The sensing system achieved highly efficient Cas12a activation and low background signal by utilizing the RESET effect and specific recognition and cleavage of HOCl. The biosensor showed high sensitivity and potential applications in clinical diagnosis and drug screening.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Engineering, Electrical & Electronic
Zhiyao Zhang, Pengpeng Chen, Chenguang Xing, Bo Liu, Ruo Wang, Longxiao Li, Xiaohui Chen, Enrico Zio
Summary: This study proposes a novel dual Informer framework called DARWIN for predicting the performance degradation of aero-engines. By using data augmentation and padding strategy, DARWIN can accurately predict the performance degradation and achieve a 27% accuracy improvement compared to the previous method.
IEEE SENSORS JOURNAL
(2023)
Review
Engineering, Electrical & Electronic
Chen Zhu, Hongkun Zheng, Lingmei Ma, Zheyi Yao, Bo Liu, Jie Huang, Yunjiang Rao
Summary: Fabry-Perot interferometers (FPIs) have extensive applications in various fields, and the fiber-optic FPIs combined with optical fiber waveguide technology have gained significant progress in the past two decades. The fiber-optic extrinsic FPIs (EFPIs) provide flexibility in designing sensitive Fabry-Perot cavities and have been developed into diverse EFPI sensors for different physical quantities. This article summarizes the recent progress of fiber-optic EFPI sensors, focusing on displacement-related quantities and discussing the working principle, signal demodulation methods, and future perspectives.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Bo Liu, Jia-Yi Ma, Jing Wang, Dong-Xia Wang, An-Na Tang, De-Ming Kong
Summary: In this study, a biosensor based on HClO-induced DNA cleavage and rolling circle amplification (RCA) was developed for highly sensitive and specific detection of HClO and MPO. The biosensor utilized only two DNA oligonucleotides and employed the signal amplification capability of RCA and the specific fluorescent response of thioflavin T (ThT) to G-quadruplexes.
CHEMISTRY-SWITZERLAND
(2023)
Article
Engineering, Electrical & Electronic
Xinruo Yi, Yuqi Li, Kehao Zhao, Zekun Wu, Qirui Wang, Bo Liu, Michael Buric, Ruishu Wright, Kevin P. Chen
Summary: This article presents a reproducible method for fabricating a tapered intrinsic Fabry-Perot interferometer (IFPI) device. The device has a diameter of 5-6 μm at the taper waist. A femtosecond laser is used for inscription of the IFPI with a 3-cm cavity length in a single-mode fiber. A CO2 laser-heated tapering process is employed to create a stable heating zone with a desired temperature profile for tapering the fiber IFPI cavity. The well-engineered tapering process produces tapered IFPI devices with low insertion loss and high refractive index sensing resolution.
IEEE SENSORS JOURNAL
(2023)
Proceedings Paper
Engineering, Electrical & Electronic
Xu Liu, Ruimin Jie, Suhbabrata Bera, Yunjiang Rao, Ciming Zhou, Bo Liu
Summary: In this study, a high-performance Raman distributed temperature sensing system using single-crystal YAG fiber was developed. The system achieved unprecedented spatial and temperature resolution, with a record of 7 cm spatial resolution and 0.62 temperature resolution in only 1 second frame data traces. The signal to noise ratio of the sensor was improved using a 2D image restoration algorithm, resulting in significantly higher accuracy of temperature measurements.
2022 ASIA COMMUNICATIONS AND PHOTONICS CONFERENCE, ACP
(2022)
Review
Engineering, Electrical & Electronic
Chen Zhu, Yiyang Zhuang, Bo Liu, Jie Huang
Summary: Fiber optic displacement sensors play a significant role in various scientific and engineering fields, and significant advancements have been made in the past two decades. This article provides a comprehensive review of different types of fiber optic displacement sensing techniques and discusses the challenges and prospects for future research.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
D. Karki, E. Hoffman, D. Shengye, V. T. Schmotzer, B. Liu, P. Ohodnicki
Summary: Laser heated pedestal growth (LHPG) is a unique technique for growing high temperature ceramic fibers and fibrous materials. The stability of the solidification process and the floating molten zone is critical for ensuring high quality of the fiber. Optimized optical components and real-time process controls can improve the quality of the growth process.
FIBER OPTIC SENSORS AND APPLICATIONS XVIII
(2022)
Article
Chemistry, Multidisciplinary
Dong-Xia Wang, Ya-Xin Wang, Jing Wang, Jia-Yi Ma, Bo Liu, An-Na Tang, De-Ming Kong
Summary: This study demonstrates that MnO2 nanosheets are an excellent carrier for the CRISPR/Cas12a system, enabling efficient delivery and rapid release in living cells. The use of MnO2 nanosheets improves the performance of live-cell biosensing analysis compared to commercial carriers.
