Results 91 to 100 of about 72,451 (334)

Young's double-slit experiment with a partially coherent vortex beam.

Optics Express, 2020
We perform a Young's double-slit experiment with a partially coherent vortex beam (PCVB) and explore its cross-spectral density (CSD) at the focal plane after passing through a double-slit.
Tianchi Chen, Xingyuan Lu, Jun Zeng, Zhuoyi Wang, Hao Zhang, Chengliang Zhao, B. Hoenders, Y. Cai   +7 more
semanticscholar   +1 more source

Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello, Joachim Gussone, Suzana G. Fries, Marcus Rackel, Andreas Stark, Norbert Schell, Jan Haubrich, Guillermo Requena   +7 more
wiley   +1 more source

Full-dimensional complex coherence properties tomography for multi-cipher information security

Opto-Electronic Advances
Optical coherence is a fundamental property of light, playing a key role in understanding interference, propagation, and light-matter interactions for both classical and quantum light. Measuring the coherence properties of an optical field is crucial for
Yonglei Liu, Siting Dai, Yimeng Zhu, Yahong Chen, Peipei Peng, Yangjian Cai, Fei Wang   +6 more
doaj   +1 more source

Nonparaxial Propagation Properties of Specially Correlated Radially Polarized Beams in Free Space

Applied Sciences, 2019
A specially correlated radially polarized (SCRP) beam with unusual physical properties on propagation in the paraxial regime was introduced and generated recently.
Lina Guo, Li Chen, Rong Lin, Minghui Zhang, Yiming Dong, Yahong Chen, Yangjian Cai   +6 more
doaj   +1 more source

Scintillation properties of a partially coherent vector beam with vortex phase in turbulent atmosphere.

Optics Express, 2019
We undertake a computational and experimental study of an advanced class of structured beams, partially coherent radially polarized vortex (PCRPV) beams, on propagation through atmospheric turbulence.
Jiayi Yu, Y. Huang, Fei Wang, Xianlong Liu, G. Gbur, Y. Cai   +5 more
semanticscholar   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Partially coherent Lorentz Gaussian beam and its scintillations

, 2011
We study the scintillation aspects of partially coherent Lorentz Gaussian (LG) beams via numerically integrating the average and average squared intensity expressions. Within the examined range of input and propagation medium parameters, the LG beams are
Eyyuboglu, H. T., H. T. Eyyuboğlu
core   +1 more source

Experimental and Numerical Modal Analysis of Composite Sandwich Structures Using Surfboards as Model Systems

Advanced Engineering Materials, EarlyView.
This article presents an experimental and numerical modal investigation of composite sandwich structures using surfboards as model systems. By comparing different core materials and reinforcement strategies, the study demonstrates how local stiffeners influence vibrational response and introduce characteristic modal features, highlighting modal ...
Brett Connellan, Luca Lomazzi, Mathis Mercier, Kara Stark, Marc in het Panhuis   +4 more
wiley   +1 more source

Digital generation of partially coherent vortex beams

Optics Letters, 2016
We present an experimental technique to generate partially coherent vortex beams with an arbitrary azimuthal index using only a spatial light modulator. Our approach is based on digitally simulating the intrinsic randomness of broadband light passing through a spiral phase plate.
Benjamin, Perez-Garcia, Adad, Yepiz, Raul I, Hernandez-Aranda, Andrew, Forbes, Grover A, Swartzlander   +4 more
openaire   +2 more sources

Probing the modal characteristics of novel beam shapes

, 2013
In this thesis, an investigation into the modal characteristics of novel beam shapes is presented. Sculpting the phase profile of a Gaussian beam can result in the generation of a beam with unique properties.
Mourka, Areti
core