Results 51 to 60 of about 54,944 (266)

Optical Communication Performance of Cylindrical Vector Partially Coherent Laguerre–Gaussian Beams in Atmospheric Turbulence

Photonics
The optical communication performance of cylindrical vector partially coherent Laguerre–Gaussian (PCLG) beams in different atmospheric turbulence models are investigated.
Meng Liu, Linxuan Yao, Yaru Gao, Hui Zhang, Yangsheng Yuan, Bohan Guo, Huimin Shi   +6 more
doaj   +1 more source

Nondiffracting vortex-beams in a birefringent chiral crystal

, 2009
A vector wave analysis of nondiffracting beams propagating along a birefringent chiral crystal for the case of tensor character both of the optical activity and linear birefringence is presented, fields of eigen modes satisfying vector wave equation.
Alexander V. Volyar, Bandres, Bassiri, Belyi, Berry, Berry, Bouchali, Chávez-Cerda, Ciattoni, Cincotti, Fadeyeva, Fadeyeva, Flossman, Gutierrez-Vega, Indebetouw, Katsenelenbaum, Kazak, Kotlyar, López-Mariscal, McClain, McGoloin, Mishra, Molloy, Orlov, Orlov, Petrova, Ruschin, Tatyana A. Fadeyeva, Volyar, Volyar   +29 more
core   +1 more source

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

Advanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar, Jorge Marqués‐Marchán, Sara Catalano, Agustina Asenjo, Michael Foerster, Miguel Angel Niño, Manuel Vazquez, Fèlix Casanova, Arantxa Fraile Rodríguez, Rafael P. Del Real, Oksana Chubykalo‐Fesenko, Cristina Bran   +11 more
wiley   +1 more source

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

Imaging of Biphoton States: Fundamentals and Applications

Advanced Functional Materials, EarlyView.
Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
wiley   +1 more source

Biomimetic surface structuring using cylindrical vector femtosecond laser beams [PDF]

Scientific Reports, 2017
AbstractWe report on a new, single-step and scalable method to fabricate highly ordered, multi-directional and complex surface structures that mimic the unique morphological features of certain species found in nature. Biomimetic surface structuring was realized by exploiting the unique and versatile angular profile and the electric field symmetry of ...
Skoulas, Evangelos, Manousaki, Alexandra, Fotakis, Costas, Stratakis, Emmanuel   +3 more
openaire   +3 more sources

Representation theory for vector electromagnetic beams

, 2008
A representation theory of finite electromagnetic beams in free space is formulated by factorizing the field vector of the plane-wave component into a $3 \times 2$ mapping matrix and a 2-component Jones-like vector.
Li, Chun-Fang
core   +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

4D‐Printed Magneto‐Plasmonic Microrobots for Programmable Spatiotemporal De‐Icing

Advanced Functional Materials, EarlyView.
A 4D‐printing strategy is introduced to achieve programmable de‐icing devices. By aligning gold–magnetite nanofillers within a photosensitive resin, the printed structures exhibit dual magnetic and plasmonic functionalities, enabling precise spatio‐temporal ice removal through thermoplasmonic effects.
Amélie Pérot, Andrea Cosola, Eléonore Aïdonidis, Jérôme Fresnais, Clément Sanchez, Philippe Belleville, Giancarlo Rizza, Marco Faustini   +7 more
wiley   +1 more source

Cylindrical vector beam focusing through a dielectric interface

Optics Express, 2001
Cylindrical vector beams have been proposed and demonstrated for applications ranging from microscopy to high energy physics.In this paper,we analyze the three-dimensional field distributions of radial and azimuthal beams focused near a dielectric interface.We give particular attention to the classic problem of high numerical aperture focusing from an ...
D, Biss, T, Brown
openaire   +2 more sources