Results 71 to 80 of about 1,464 (216)
Nanophotonics, Volume 15, Issue 3, 12 February 2026.This work proposes OAM‐encoded CNN based on cascaded on‐chip OAM converters and multiplexers. The footprint of inverse‐designed converters is 5 μm × 4 μm and the maximum conversion efficiency of OAM reaches 88%. The OAM‐encoded optical CNN was built using this device, achieving 98.0% accuracy on MNIST and 86.1% accuracy on Fashion‐MNIST classification.
Yumeng Chen +4 more
wiley +1 more source
IEEE Photonics Journal, 2017 Beams carrying orbital angular momentum (OAM) are very helpful in enhancing the information carrying capacity in free-space optical communications. However, atmospheric turbulence and energy attenuation will seriously affect communication quality and ...
Xiaoke Zhang +11 more
doaj +1 more source
Air-Core Ring Fiber With >1000 Radially Fundamental OAM Modes Across O, E, S, C, and L Bands
IEEE Access, 2020 In this work, an air-core ring fiber is designed with a record high 1322 orbital angular momentum (OAM) modes at 1550 nm while maintaining radially single-mode condition.
Yingning Wang +11 more
doaj +1 more source
Prototyping of 40 GHz Band Orbital Angular Momentum Multiplexing System and Evaluation of Field Wireless Transmission Experiments [PDF]
, 2022 Yasunori Yagi +2 more
openalex +1 more source
Nanophotonics, Volume 15, Issue 3, 12 February 2026.Based on an all‐dielectric metasurface with cross‐phase modulation, we achieve the generation and polarization control of integers and fractional order irregular perfect vector vortex beams on the hybrid Poincaré sphere, opening a new avenue for optical field manipulation.
Xiaojie Sun +7 more
wiley +1 more source
Nanophotonics, Volume 15, Issue 2, 27 January 2026.This work demonstrates a strategy for four‐channel phase modulation and flexible energy distribution of arbitrary orthogonal states of polarization under incomplete polarization conversion conditions. Such a strategy can be implemented through an all‐dielectric free‐standing bilayer metasurface configuration and can be used for multichannel optical ...
Wei Wang +7 more
wiley +1 more source
An Epsilon‐Near‐Zero‐Based Nonlinear Platform for Ultrafast Re‐Writable Holography
Nanophotonics, Volume 15, Issue 2, 27 January 2026.We show that an unstructured, sub‐wavelength thick epsilon‐near‐zero material, such as ITO, can be efficiently used for ultrafast re‐writable holography over a broad bandwidth range. We showcase two powerful applications of our scheme, that is, spatial structuring of light and optical computation.
M. Zahirul Alam +5 more
wiley +1 more source
Orbital angular momentum modes do not increase the channel capacity in communication links
New Journal of Physics, 2015 The orbital momentum of optical or radio waves can be used as a degree of freedom to transmit information. However, mainly for technical reasons, this degree of freedom has not been widely used in communication channels. The question is if this degree of
Mauritz Andersson +2 more
doaj +1 more source
Advanced Optical Materials, Volume 14, Issue 4, 27 January 2026.Persistent luminescence (PersL), or afterglow, is the phenomenon of light emission that continues long after the excitation source is removed. This review systematically covers the historical development and major material forms of organic PersL materials, detailing their operating principles, mechanisms, and typical applications.
Cunjian Lin, Jumpei Ueda
wiley +1 more source
Time Evolution of Orbital Angular Momentum Modes for Deep-Routing Multiplexing Channels
EngineeringOptical orbital angular momentum (OAM) mode multiplexing has emerged as a promising technique for boosting communication capacity. However, most existing studies have concentrated on channel (de)multiplexing, overlooking the critical aspect of channel ...
Zebin Huang +8 more
doaj +1 more source