Results 71 to 80 of about 28,100 (290)
Advanced Engineering Materials, EarlyView.It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti +11 more
wiley +1 more source
Propagation of an Airy-Gaussian beam passing through a lens with low effective Fresnel number
Results in Physics, 2020 We derive an analytical propagation expression for the Airy-Gaussian beam propagating through a thin lens, and calculate numerical examples to investigate its focusing properties.
Jie Zhu, Huiqin Tang, Qilin Gao
doaj +1 more source
Reflection Characteristics of Airy Beams Impinging on Graphene-Substrate Surfaces
International Journal of Optics, 2022 In this work, we analytically and numerically investigate the reflection characteristics of the airy beams impinging on graphene-substrate surfaces. The explicit analytical expressions for the electric and magnetic field components of the airy beams ...
Fuping Wu +3 more
doaj +1 more source
Non-Paraxial Accelerating Beams
, 2012 We present the spatially accelerating solutions of the Maxwell equations. Such non-paraxial beams accelerate in a circular trajectory, thus generalizing the concept of Airy beams.
Ido Kaminer +4 more
core +1 more source
Observation of self-accelerating Bessel-like optical beams along arbitrary trajectories [PDF]
, 2013 We experimentally demonstrate self-accelerating Bessel-like optical beams propagating along arbitrary trajectories in free space. With computer generated holography, such beams are designed to follow different controllable trajectories while their main ...
Chen, Zhigang +8 more
core +1 more source
Advanced Engineering Materials, EarlyView.Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller +6 more
wiley +1 more source
Wideband Airy Beam Generation Using Reflective Metasurfaces with Both Phase and Amplitude Modulation
Photonics, 2023 Airy beams are an intriguing type of non-diffraction wave packet that can exist in one-dimensional (1D) curved orbital plane systems. These beams have gained significant attention due to their unique properties, including non-diffraction, self-healing ...
Zhenai Wang, Tingting Lang, Yanqing Qiu
doaj +1 more source
Curved plasma channels: Kerr lens and Airy prism
, 2009 We analytically calculate the transverse energy fluxes that would be respectively induced in high-power Airy beams by the Kerr self-focusing and the Airy profile itself if they were the only active process.
Baumgartl +19 more
core +3 more sources
Advanced Engineering Materials, EarlyView.High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin +4 more
wiley +1 more source
Tailoring the Generalized 2D Airy Beam
IEEE Photonics JournalGeneralized two-dimensional (2D) Airy beam is a kind of self-accelerating beam with variable initial angle between its two wings, manifested itself as an initial angle determined parabolic trajectory during the free-space propagation.
Junpeng Zheng +7 more
doaj +1 more source