Results 51 to 60 of about 15,024 (305)

Effect of Twisting Phases on Linear–Circular Polarization and Spin–Orbital Angular Momentum Conversions in Tightly Focused Vector and Scalar Beams

Photonics, 2023
We theoretically investigated the effect of a new type of twisting phase on the polarization dynamics and spin–orbital angular momentum conversion of tightly focused scalar and vector beams.
Shu-Dan Wu, Khian-Hooi Chew, Rui-Pin Chen   +2 more
doaj   +1 more source

Emerging 2D Materials and Their Hybrid Nanostructures for Label‐Free Optical Biosensing: Recent Progress and Outlook

Advanced Functional Materials, EarlyView.
This review highlights recent advances in label‐free optical biosensors based on 2D materials and rationally designed mixed‐dimensional nanohybrids, emphasizing their synergistic effects and novel functionalities. It also discusses multifunctional sensing platforms and the integration of machine learning for intelligent data analysis.
Xinyi Li, Yonghao Fu, Yuehe Lin, Dan Du
wiley   +1 more source

Orbital-Angular-Momentum-Controlled Hybrid Nanowire Circuit

Nano Letters, 2021
Plasmonic nanostructures can enable compact multiplexing of the orbital angular momentum (OAM) of light; however, strong dissipation of the highly localized OAM-distinct plasmonic fields in the near-field region hinders on-chip OAM transmission and processing.
Haoran Ren, Xiaoxia Wang, Chenhao Li, Chenglin He, Yixiong Wang, Anlian Pan, Stefan A. Maier   +6 more
openaire   +4 more sources

Orbital Angular Momentum Carried by ShGB Vortex Beam for FSO and its Aberration Effects [PDF]

, 2022
Nimmy Lazer, Y.P. Arul Teen, K. B. Rajesh   +2 more
openalex   +1 more source

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

Advanced Functional Materials, EarlyView.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To, Jiachen Du, Cyril Decroze, Laure Huitema, Aurelian Crunteanu, Hang Wong   +5 more
wiley   +1 more source

Active ballistic orbital transport in Ni/Pt heterostructure

Nature Communications
Orbital current, defined as the orbital character of Bloch states in solids, can travel with larger coherence length through a broader range of materials than its spin counterpart, facilitating a robust, higher density and energy efficient information ...
Sobhan Subhra Mishra, James Lourembam, Dennis Jing Xiong Lin, Ranjan Singh   +3 more
doaj   +1 more source

Photonic Angular Momentum in Intense Light–Matter Interactions

Photonics
Light contains both spin and orbital angular momentum. Despite contributing equally to the total photonic angular momentum, these components derive from quite different parts of the electromagnetic field profile, namely its polarization and spatial ...
Alex Schimmoller, Spencer Walker, Alexandra S. Landsman   +2 more
doaj   +1 more source

Achromatic orbital angular momentum generator

New Journal of Physics, 2014
We describe a novel approach for generating light beams that carry orbital angular momentum (OAM) by means of total internal reflection in an isotropic medium.
Frédéric Bouchard, Harjaspreet Mand, Mohammad Mirhosseini, Ebrahim Karimi, Robert W Boyd   +4 more
doaj   +1 more source

Reconfigurable Metamirrors Based on Compliant Mechanisms

Advanced Functional Materials, EarlyView.
Providing the basis for numerous practical applications, the reconfigurability of metadevices is of great importance. Through the integration of controlled mechanical deformation with chiral meta‐atoms, a compliant mechanism based metamirror is demonstrated for active control over the polarization of electromagnetic waves.
Galestan Mackertich‐Sengerdy, Lei Kang, Sawyer D. Campbell, Douglas H. Werner   +3 more
wiley   +1 more source

Microwave-induced orbital angular momentum transfer

Scientific Reports, 2019
AbstractThe microwave-induced orbital angular momentum (OAM) transfer from a Laguerre-Gaussian (LG) beam to a weak plane-wave is studied in a closed-loop four-level ladder-type atomic system. The analytical investigation shows that the generated fourth field is an LG beam with the same OAM of the applied LG field.
Sabegh, Zahra Amini, Maleki, Mohammad Ali, Mahmoudi, Mohammad   +2 more
openaire   +3 more sources