Results 51 to 60 of about 1,358,362 (273)

Formation of high-order cylindrical vector beams with sector sandwich structures

Компьютерная оптика, 2022
Complex polarization-phase transformations are considered, which are implemented using easy-to-manufacture optical elements. The manufacturing technology of such elements is based on the axially symmetric discretization of the required polarization and ...
S.V. Karpeev, V.V. Podlipnov, S.A. Degtyarev, A.M. Algubili   +3 more
doaj   +1 more source

Load Distributing Metamaterials Via Discrete Optimization

Advanced Functional Materials, EarlyView.
Mechanical metamaterials are computationally optimized to homogenize transmitted forces by minimizing the spread of reaction forces. The resulting architectures transform localized loading into broader, more uniform force distributions and experimentally demonstrate robust load spreading under quasi‐static and impact loading.
Andrea Detry, Hannes Holey, Raja Zulkarnain, Roberto Guerra, Ilaria Papa, Michael Zaiser, Stefano Zapperi   +6 more
wiley   +1 more source

Modal Analysis of Light Propagation, Polarization and Diffraction by Cholesteric Liquid Crystal Layers

Advanced Functional Materials, EarlyView.
The analysis of optical eigenmodes in chiral liquid crystal with perpendicular or tilted helical axis, and their correspondence with the external medium, leads to an intuitive understanding of the angle and wavelength dependency of transmissive and reflective diffraction.
Ke Xu, Pouya Nosratkhah, Le Zhou, Shengzhu Yi, Giorgio Manzoni, Kristiaan Neyts   +5 more
wiley   +1 more source

An all-fiber laser generating cylindrical vector beam

Optics Express, 2010
We proposed and demonstrated an all-fiber laser to generate cylindrical vector beam. A pair of fiber-based collimators was used to select the cylindrical vector beam operating. The radially and azimuthally polarized modes can be switchable just by applying pressure to a section of fiber in our fiber laser system. A 70 cm long Yb-doped fiber was used as
Rui, Zheng, Chun, Gu, Anting, Wang, Lixin, Xu, Hai, Ming   +4 more
openaire   +2 more sources

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

Advanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto, Javier Zamudio‐García, Abraham Sánchez‐Caballero, David Marrero‐López, Vincenzo Esposito   +4 more
wiley   +1 more source

Deciphering the Photopolymerization‐Induced Nanostructures and Interface Formation for Submicrometer Additive Manufacturing

Advanced Functional Materials, EarlyView.
This work reveals the UV‐curing‐induced monomer‐rich domain, oligomer‐rich domain, and entangled oligomer domain. The cured submicron films in stressed state induce interlayer nano‐wrinkle structures during the deposition of the second layer. Stress‐free cured films in relaxed state form non‐diffusive, diffusive and semi‐diffusive interlayer ...
Shouzheng Chen, Yufeng Zhai, Jungui Zhou, Lixing Li, Simon Schraad, Guangjiu Pan, Xuehe Jiang, Sarathlal Koyiloth Vayalil, Rolf A. T. M. van Benthem, Julien R. G. Navarro, Johan F. G. A. Jansen, Mats K. G. Johansson, Peter Müller‐Buschbaum, Stephan V. Roth   +13 more
wiley   +1 more source

Enhancing the Spin Hall Effect of Cylindrically Polarized Beams

Micromachines
Two linked gear wheels in a micromachine can be simultaneously rotated in opposite directions by using a laser beam that has in its section areas the spin angular momentum (SAM) of the opposite sign.
Alexey A. Kovalev, Anton G. Nalimov, Victor V. Kotlyar   +2 more
doaj   +1 more source

Microstructured suspended core fiber for cylindrical vector beams propagation

, 2015
A suspended core fiber based on lead silicate glass has been fabricated to generate doughnut beams. Preliminary results demonstrated a potential to be a good candidate for fiber based cylindrical vector beams generation and ...
Heike Ebendoff-Heidepriem, Tanya M. Monro, Shahraam Afshar Vahid, Yinlan Ruan, Hong Ji, Wen Qi Zhang, Ebendoff-Heidepriem, H., Monro, T., Ji, H., Ruan, Y., Zhang, W., Vahid, S.   +11 more
core   +1 more source

High-Mode Purity 1 μm Cylindrical Vector Beam All-Fiber Laser Based on a Symmetric Two-Mode Coupler

Applied Sciences, 2023
Cylindrical vector beams (CVBs) are the product of polarization modulation of optical fields, and possess both unique focusing characteristics and excellent properties applicable to machining, imaging, communication and other fields.
Boyi Yang, Siqi Pei, Tianyu Zhang, Yizhuo Zhang, He Hao, Kun Zhang, Xuesheng Liu, Tian Lan, Anru Yan, Youqiang Liu, Zhiyong Wang   +10 more
doaj   +1 more source

Statistics properties of a cylindrical vector partially coherent beam

Optics Express, 2011
Cylindrical vector partially coherent beam is introduced as a natural extension of cylindrical vector coherent beam based on the unified theory of coherence and polarization. Analytical propagation formula for the cross-spectral density matrix of a cylindrical vector partially coherent beam passing through paraxial ABCD optical system is derived based ...
Yiming, Dong, Yangjian, Cai, Chengliang, Zhao, Min, Yao   +3 more
openaire   +2 more sources