Article
Chemistry, Analytical
Antonio Matteo Passeri, Francesco Lunardelli, Daniele Cavariani, Marco Cecchini, Matteo Agostini
Summary: Biosensors based on surface acoustic waves (SAWs) offer advantages of high sensitivity, real-time response capability, and label-free detection. This study investigates and characterizes SAW resonator biosensors on lithium niobate, revealing the simultaneous presence of two typical SAW modes and studying them through numerical simulations and biosensing experiments.
Review
Chemistry, Analytical
Debdyuti Mandal, Sourav Banerjee
Summary: This article introduces surface acoustic waves (SAWs) and their applications in sensors. By explaining the physics of guided SAWs and the piezoelectric materials used, it discusses how the materials and cuts can alter sensor functionality. It summarizes key electrode configurations and guidelines for generating different guided wave patterns, and explores the applications of SAW sensors in various fields and potential improvement plans in science and technology.
Article
Engineering, Electrical & Electronic
Masashi Yamagata, Ning Cao, Demis D. D. John, Hossein Hashemi
Summary: This article examines the waveguiding of sub-1-GHz surface acoustic waves (SAWs) on 128 degrees Y-cut lithium niobate (LiNbO3) and demonstrates different types of waveguide structures such as straight waveguides, waveguide bends, and coupled waveguides. It also presents an electroacoustic variable phase shifter based on a SAW waveguide and an all-acoustic bidirectional RF phased array front end. These structures can be implemented in commercial SAW foundries, resulting in low-cost compact realizations of SAW microwave signal processing structures.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)
Article
Chemistry, Analytical
Ming-Jer Jeng, Ying-Chang Li, Mukta Sharma, Chia-Wei Chen, Chia-Lung Tsai, Yen-Heng Lin, Shiang-Fu Huang, Liann-Be Chang, Chao-Sung Lai
Summary: The study successfully combined a surface acoustic wave sensor with a microfluidic channel to detect C-reactive protein, showing a high detection limit and a wide concentration range, making it a potential biosensor for diagnosing the risk of cardiovascular disease.
Article
Physics, Applied
Zhiwei Wen, Wenjuan Liu, Tiancheng Luo, Xin Tong, Ying Xie, Xiyu Gu, Yan Liu, Yao Cai, Shishang Guo, Jian Wang, Chengliang Sun
Summary: This letter introduces a new type of laterally excited bulk acoustic resonator (XBAR) called SV-BAR, which suppresses higher-order spurious modes effectively by changing the scattering vias in the electrodes. The SV-BAR achieves 50Ω impedance matching and exhibits impressive performance parameters, making it a promising solution for high-performance radio frequency filters in 5G communication.
APPLIED PHYSICS LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Jordan Maufay, Baptiste Paulmier, Melanie Emo, Ulrich Youbi, Esther Mbina, Thierry Aubert, Ninel Kokanyan, Sami Hage-Ali, Michel Vilasi, Omar Elmazria
Summary: In this study, an innovative alloy called NiAl was investigated as an alternative material for the electrodes of surface acoustic wave (SAW) reflective delay line (R-DL) sensors. The results showed that NiAl electrodes, when annealed at 500 degrees C for 50 hours, can self-passivate and form a protective layer of aluminum oxide, preventing further oxidation. The performance of NiAl/LiNbO3 R-DL sensors was not significantly affected. Thus, these sensors can operate with high fidelity at 500 degrees C for at least 10 days, and potentially much longer.
IEEE SENSORS JOURNAL
(2023)
Article
Physics, Applied
Rongxuan Su, Sulei Fu, Zengtian Lu, Junyao Shen, Huiping Xu, Zhibin Xu, Rui Wang, Cheng Song, Fei Zeng, Weibiao Wang, Feng Pan
Summary: This study constructs a novel SAW filter with a heterostructure to enhance the central frequency and bandwidth while reducing the insertion loss. It achieves these effects by optimizing the electrode design and adjusting the electrode thickness of the resonators. The SAW filter is expected to become a filtering solution for the n77 band.
APPLIED PHYSICS LETTERS
(2022)
Article
Crystallography
Namrata Dewan Soni, Jyoti Bhola
Summary: This study introduces the first-ever optimized surface acoustic wave (SAW) device based on Beryllium Oxide (BeO) thin film, and theoretically examines the feasibility of SAW devices with BeO/128 degrees YX LiNbO3 layered structure. The calculated results show that the BeO/128 degrees YX LiNbO3 layered structure demonstrates optimal phase velocity and coupling coefficient when the BeO over layer thickness reaches 0.08 lambda, and temperature stability can be achieved by integrating it with a negative temperature coefficient of delay (TCD) TeO3 over layer.
Article
Multidisciplinary Sciences
Luis Ledezma, Arkadev Roy, Luis Costa, Ryoto Sekine, Robert Gray, Qiushi Guo, Rajveer Nehra, Ryan M. Briggs, Alireza Marandi
Summary: Widely tunable coherent sources are desirable in nanophotonics for various applications. This study presents ultrawidely tunable optical parametric oscillators in dispersion-engineered periodically poled lithium niobate nanophotonics. By using 100 ns pulses near 1 mu m, the output wavelengths can be tuned from 1.53 mu m to 3.25 mu m, which represents the first octave-spanning tunable source in nanophotonics extending into the mid-infrared.
Article
Engineering, Electrical & Electronic
Yihao Guo, Changshuai Yin, Jian Zhou, Zhangbin Ji, Fengling Zhuo, Hui Ling Ong, Jikai Zhang, Huigao Duan, Richard Fu
Summary: UV detectors based on SAW technology have the advantage of remote operation and zero power consumption. The frequency shift in SAW devices induced by UV irradiation is mainly caused by acoustoelectric and thermal effects, with minor influences from mass-loading and photo-capacitive effects. This study systematically investigates the contributions of acoustoelectric and thermal effects at different UV light intensities and clarifies their individual influences on SAW-based UV sensing under different conditions.
IEEE SENSORS JOURNAL
(2023)
Article
Acoustics
Khaled M. Ahmida
Summary: This paper analyzes the problem of low-frequency sound propagation in ducts with varying cross-sections and presents spectral finite element formulations for dynamic analysis using tapered spectral elements. These elements can be used in connected waveguides through dynamic stiffness relations. Linear and polynomial duct types are considered, and the shape functions of the elements are established along with dynamic stiffness matrices. The presented spectral approach accurately describes acoustic wave motion in any position along multiply connected duct waveguides within the one-dimensional plane-wave assumption. Experimental verification and comparison with 3-D finite element solutions support the derived expressions. Modeling varying cross-section duct waveguides can have an important role in the design of acoustic excitation devices and horn-type loudspeakers. The advantage of the presented formulations lies in their low computational cost compared to finite element approaches.
JOURNAL OF VIBRATION AND CONTROL
(2023)
Article
Engineering, Electrical & Electronic
Zihang Gao, Yumei Wen, Huaming Lei, Weibiao Wang, Tao Li, Qiang Xiao, Chao Kong, Yanping Fan
Summary: This article presents a passive wireless weighing sensor based on surface acoustic wave (SAW) technology, which has high sensitivity and good ambient temperature inhibition effect.
IEEE SENSORS JOURNAL
(2023)
Article
Acoustics
Yang Yang, Harshad Mishra, Tao Han, Sami Hage-Ali, Michel Hehn, Omar Elmazria
Summary: SAW sensors with ferromagnetic materials are used for measuring magnetic fields or electric currents. The magnetic field sensitivities are influenced by various factors and the sensing mechanism is complex. By considering factors like magnetostriction effect, a reliable sensor design with reduced shape demagnetizing effects is achieved. Experimental verification of the model helps predict and investigate factors affecting sensitivities, leading to the exploration of a grooved sensing surface structure for improved sensitivity.
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
(2021)
Article
Engineering, Electrical & Electronic
Pengcheng Zheng, Shibin Zhang, Yang Chen, Liping Zhang, Jinbo Wu, Hulin Yao, Xiaoli Fang, Xiaomeng Zhao, Kai Huang, Xin Ou
Summary: This work demonstrates gigahertz wideband acoustic delay lines (ADLs) with record-breaking propagation-Q using a thin-film X-cut lithium niobate on silicon carbide (LiNbO3-on-SiC) platform. With the help of SiC's high bulkwave velocity and excellent mechanical Q, the SH-SAW excited by unidirectional transducers propagates in LiNbO3-on-SiC's top surface with low acoustic loss. The fabricated ADLs show scalable center frequencies, wide fractional bandwidth, and a record-high propagation-Q, indicating the great potential of the LiNbO3-on-SiC acoustic platform for signal processing applications.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Chemistry, Analytical
Sergey Yu. Shevchenko, Denis A. Mikhailenko
Summary: This study proposes a design for a ring-shaped surface acoustic wave (SAW) resonator sensitive element, and analyzes its characteristics and suggests optimization strategies, with a focus on temperature stability. The design is further optimized to narrow the bandwidth and improve signal detection, while considering technological limitations and the impact of lithography defects. The study validates several design options for the interdigital transducer (IDT) and demonstrates how its pin geometry can be optimized. The results will be used for prototyping and printing ring resonators on a substrate using photolithography.
Article
Engineering, Biomedical
Christopher M. Conners, Venkat R. Bhethanabotla, Vinay K. Gupta
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2017)
Article
Chemistry, Applied
Bryan J. Hare, Debtanu Maiti, Swetha Ramani, Adela E. Ramos, Venkat R. Bhethanabotla, John N. Kuhn
Article
Thermodynamics
Howard C. Wong, Scott W. Campbell, Venkat R. Bhethanabotla
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2018)
Article
Chemistry, Physical
Chi-Ta Yang, Brandon C. Wood, Venkat R. Bhethanabotla, Babu Joseph
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2018)
Article
Chemistry, Physical
Bryan. J. Hare, Debtanu Maiti, Yolanda A. Daza, Venkat R. Bhethanabotla, John N. Kuhn
Article
Chemistry, Multidisciplinary
Jun Liu, Shuangming Li, Venkat R. Bhethanabotla
Article
Thermodynamics
Abhijeet R. Iyer, Kiranpreet Kaur, Katy York, Scott W. Campbell, Venkat R. Bhethanabotla
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2018)
Article
Chemistry, Physical
Debtanu Maiti, Johnnie Cairns, John N. Kuhn, Venkat R. Bhethanabotla
JOURNAL OF PHYSICAL CHEMISTRY C
(2018)
Article
Chemistry, Multidisciplinary
Anne J. Meier, Anita Garg, Brad Sutter, John N. Kuhn, Venkat R. Bhethanabotla
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Article
Chemistry, Applied
Adela E. Ramos, Debtanu Maiti, Yolanda A. Daza, John N. Kuhn, Venkat R. Bhethanabotla
Article
Chemistry, Analytical
Shuangming Li, Venkat R. Bhethanabotla
Article
Chemistry, Analytical
Abhijeet Iyer, Veselinka Mitevska, Jonathan Samuelson, Scott Campbell, Venkat R. Bhethanabotla
Summary: Sensing films based on polymer-plasticizer coatings have been developed for detecting low concentrations of VOCs in the atmosphere, with a focus on BTEX compounds. The sensitivity and selectivity of the polymer film for BTEX detection can be altered by adding precise types and amounts of plasticizers. A diffusion study was conducted to model the absorption of BTEX analyte molecules into the film, allowing for accurate quantification of each analyte's concentration from binary and ternary mixtures based on response time differences.
Article
Chemistry, Analytical
Mandek Richardson, Pradipta K. Das, Samuel Morrill, Kamlesh J. Suthar, Subramanian K. R. S. Sankaranarayanan, Venkat R. Bhethanabotla
Summary: This study utilized Rayleigh waves in ST-Quartz devices to efficiently remove non-specific protein binding, improving the performance of label-free biosensors; acoustic streaming prevented reattachment of particles by overcoming adhesive forces at various frequencies; results indicate that ST-Quartz enables integration of functions for removal of non-specific binding, mixing, and sensing on a single chip.
Article
Chemistry, Physical
Selin S. Suner, Venkat R. Bhethanabotla, Ramesh S. Ayyala, Nurettin Sahiner
Summary: Photo-activated antipathogenic carbon dots were prepared by modifying arginine carbon dots with fluorescent dyes, leading to enhanced antimicrobial potency. These modified carbon dots showed excellent fluorescence properties and broad-spectrum antimicrobial activity, with the photosensitive arginine-riboflavin carbon dots exhibiting the strongest antibacterial effect.
Article
Materials Science, Multidisciplinary
Selin S. Suner, Mehtap Sahiner, Ramesh S. Ayyala, Venkat R. Bhethanabotla, Nurettin Sahiner
C-JOURNAL OF CARBON RESEARCH
(2020)
