Article
Acoustics
Menyang Gong, Xin Xu, Zhonghan Fei, Yuanyuan Li, Teng Liu, Shenlian Gao, Jiehui Liu, Aijun He, Xiaozhou Liu
Summary: A theoretical solution for the acoustic radiation force (ARF) on spherical particles by an arbitrary beam in viscous fluids in a tube is proposed in this study. The accuracy and feasibility of the proposed scheme are confirmed through theoretical solutions and finite element simulations based on parametric design for promoting calculi in the urinary system. The variation law of ARF with adjustable parameters such as incident angle, frequency spectrum, particle radius, tube radius, and viscosity is studied, and the mechanism behind this variation law is explained. This solution lays the foundation for the application of non-contact and non-invasive in-tube manipulation based on ARF in medicine and life sciences.
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2023)
Article
Physics, Applied
Jiao Li, Ning Ding, Qingyu Ma, Yuzhi Li, Gepu Guo, Juan Tu, Dong Zhang
Summary: The study calculates the axial acoustic radiation force exerted by focused acoustic vortex beams on objects through a recursive algorithm, showing different interaction modes between objects and FAV beams of different orders.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Nanoscience & Nanotechnology
Menyang Gong, Yupei Qiao, Zhonghan Fei, Yuanyuan Li, Jiehui Liu, Yiwei Mao, Aijun He, Xiaozhou Liu
Summary: This study proposed a prediction method for generating negative acoustic radiation force using non-diffractive acoustic beam, and analyzed its underlying physical mechanism. By analyzing energy flux density, the analytical region of negative radiation generated by non-diffractive beam was completely solved. This lays the foundation for realizing acoustic tweezers and designing devices that produce negative ARFs.
Article
Acoustics
Elena D. Vinogradova
Summary: The study rigorously solves the plane wave scattering problem for a rigid spherical shell with two coaxial circular holes using the Method of Analytical Regularization. The solution is uniformly valid with respect to aperture size and allows for accurate studies of scattering characteristics in a wide frequency range, including total and sonar cross-sections.
JOURNAL OF SOUND AND VIBRATION
(2021)
Review
Chemistry, Multidisciplinary
Wen-Yue Wang, Tian-Yu Cheng, Zhen-Xu Bai, Shuo Liu, Jia-Qi Lue
Summary: Research on vector optical beams with longitudinally varying polarization has attracted significant attention in recent years, offering new possibilities for applications in volume laser machining, longitudinal detection, and in vivo micromanipulation compared to traditional vector optical beams. Two theoretical strategies for achieving this unique optical beam involve constructing longitudinally varying phase difference and amplitude difference, with relevant generation methods divided into modulation of complex amplitude in real space and filtering of the spatial spectrum. Current issues and future prospects for vector optical beams with longitudinally varying polarization are also discussed.
APPLIED SCIENCES-BASEL
(2021)
Article
Physics, Multidisciplinary
Zhe Wang, Qun Wei, Shu Zhang, Linqian Li, Mingwei Hu, Renxian Li
Summary: Based on Generalized Lorenz-Mie Theory (GLMT), this study investigates the scattering phenomenon caused by Bessel beam irradiation on metal particles. The software simulation calculation is used to examine the order and polarization mode of Bessel beam, as well as the influence of metal particle size on the total intensity distribution of the light field. The results indicate that higher order Bessel beams are more likely to bypass metal particles in forward propagation, while the bypassing of particles by lower order Bessel beams is related to the beam's polarization mode. These findings have potential applications in microscopy super-resolution imaging and detection of tiny particles.
Article
Acoustics
Zhixiong Gong, Michael Baudoin
Summary: This paper investigates two methods for deriving the acoustical radiation force and torque applied by an arbitrary acoustic field on a particle, and establishes the equivalence between the expressions obtained with these two methods for both the force and torque.
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2021)
Article
Computer Science, Artificial Intelligence
Carlile Lavor, Rafael Alves, Leandro A. F. Fernandes
Summary: Many practical problems involve sphere intersections, and this study focuses on situations where the radii of the spheres are not precisely known. The paper presents and compares two approaches for including a spherical shell in the intersection, demonstrating the advantage of conformal geometric algebra (CGA) in preserving geometric intuition even in dimensions higher than three.
EXPERT SYSTEMS WITH APPLICATIONS
(2022)
Article
Acoustics
Tianquan Tang, Lixi Huang
Summary: This paper utilizes the partial wave expansion series and conformal transformation approach to estimate the acoustic radiation force and torque exerted on micro-objects. The authors also present an open-source software called Soundiation, which supports the dynamic prediction of non-spherical particles. The software offers a user-friendly graphical interface and demonstrates good applicability in validating numerical methods.
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2022)
Article
Chemistry, Analytical
Francesco Ruffino
Summary: Bimetallic nanoparticles exhibit unique properties for various technological applications, particularly in terms of optical properties and their interaction with electromagnetic radiation. The core-shell structure significantly affects the optical properties of these nanoparticles.
Article
Physics, Fluids & Plasmas
Haohan Tan, Yuguang Qiu, Liujun Xu, Jiping Huang
Summary: Research shows that thermal conduction force can exist in dielectric crystals even without a temperature gradient. By analyzing the momentum conservation law for phonon gases, the direction of the force can be tunable, which affects the behavior of thermal conduction. These findings provide valuable insights into understanding thermal conduction force in environments with temperature fluctuations and have the potential for practical applications in manipulating the local thermal conductivity of crystals.
Article
Physics, Fluids & Plasmas
Haohan Tan, Yuguang Qiu, Liujun Xu, Jiping Huang
Summary: Thermal conduction force plays an important role in various fields, but regulating its effect is challenging due to two restrictions. This study demonstrates that thermal conduction force can exist unexpectedly at a zero average temperature gradient in dielectric crystals. The force direction can be highly tunable, providing valuable insights into thermal conduction force and potential applications in manipulating local thermal conductivity.
Article
Optics
Aiqian Yu, Gaofeng Wu
Summary: This paper studies the self-healing effect of partially blocked light beams and ways to decrease their influence in practical applications. The optical pin beam (OPB) can evolve into a Bessel-like beam and retain its robust property after long-distance propagation. The self-healing effect of the OPB is observed and confirmed through experiments, and the radiation forces of an obstructed OPB are calculated. These findings have important applications in various fields such as micro-imaging, trapping, and long-distance optical communication under disturbance conditions.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2023)
Article
Physics, Multidisciplinary
Yu-Chen Zang, Wei-Jun Lin, Chang Su, Peng-Fei Wu
Summary: This study theoretically and numerically investigates the acoustic radiation force exerted by a zero-order quasi-Bessel-Gauss beam on an elastic spherical shell near an impedance boundary. The results show that the relative thickness of the shell can influence the intensity and morphology of the acoustic radiation force, while the beam waist only affects the results at high frequencies. This study is expected to be helpful for the development of acoustic tweezers, contrast agent micro-shells, and drug delivery applications.
Article
Nanoscience & Nanotechnology
Jingyao Shi, Shuyuan Li, Guangbin Zhang, Xiaofeng Zhang
Summary: This study investigates the interaction between a plane sound wave and a sphere in a fluid-filled rigid tube, focusing on exploring the relationship between acoustic radiation force and the dimensionless complex scattering pattern. Simulation results demonstrate a certain relationship between the acoustic radiation force and the scattering pattern for a spherical particle. This research can help predict different behaviors of radiation force and provide reference for effectively controlling acoustic manipulation systems.