Results 141 to 150 of about 12,678 (263)
Holographic optical elements: Fabrication and testing [PDF]
The basic properties and use of holographic optical elements were investigated to design and construct wide-angle, Fourier-transform holographic optical systems for use in a Bragg-effect optical memory. The performance characteristics are described along
Ralston, L. M., Shareck, M., Zech, R. G.
core +1 more source
Reinforcement Learning Enabled Nanophotonic Devices
Laser &Photonics Reviews, EarlyView.A reinforcement learning algorithm is used to design photonic devices. The method creates metagratings and grating couplers that efficiently control both the direction and polarization of light. Further, a reinforcement learning approach is used to design in‐plane integrated photonic devices. This approach paves the way for advanced photonic components
Zi Wang +4 more
wiley +1 more source
Coherence‐Gated Mirau Interferometry for Single‐Shot Quantitative Phase Imaging and Motion Sensing
Laser &Photonics Reviews, EarlyView.This paper presents a compact add‐on module converting a Mirau or other on‐axis interferometer into a single‐shot quantitative phase imaging system using coherence gating and precise optical path matching. Demonstrations include time‐resolved imaging of human cells and streaming red blood cells, visualization of evaporation dynamics in liquid mixtures,
Petr Bouchal +4 more
wiley +1 more source
Topological Photonic Devices and Circuits at Terahertz Frequencies
Laser &Photonics Reviews, EarlyView.This review examines how 3D topological insulators and emerging topological photonic phases enable robust, low‐loss and defect‐immune terahertz devices. Fundamental properties, device implementations and topological transport mechanisms are surveyed, revealing new opportunities for reconfigurable, high‐performance THz components and scalable ...
Samane Kalhor +3 more
wiley +1 more source
MetalMat, EarlyView.This review explores current strategies for shaping two‐dimensional transition metal dichalcogenides (TMDs) beyond their planar form. It highlights how strain engineering, nanopatterning, and growth on complex substrates modulate their mechanical, optical, and electronic properties.
C. Grazianetti +6 more
wiley +1 more source
Real‐Time Probing of Complex Bi‐Periodic Self‐Organized Grating Formation via Small‐Angle Scattering
Nano Select, EarlyView.A wedge‐shaped AgCl nanolayer with a granular Ag film enables the self‐organization of bi‐periodic nanostructures. Real‐time SAS pattern analysis reveals dynamic domain interactions and competing gratings, validating a generator/re‐emitter model driven by TEn mode excitations. This framework offers a novel approach for evaluating SPN formation quality.
Arashmid Nahal, Ozra Kiasatfar
wiley +1 more source
Rare Metals, EarlyView.ABSTRACT Considering the multiple challenges faced by stealth coatings in complex service environments, the development of multifunctional integrated microwave absorbing materials (MAMs) that combine efficient electromagnetic (EM) attenuation with environmental tolerance has become an urgent need. In this work, coral‐like CoNi@Void@C microparticle (MP)
Jiale Wu +8 more
wiley +1 more source
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT This study analyzes the architecture of the beyond 5G‐NTN (Non‐terrestrial Network) integrated network and presents the technical, legal, and regulatory challenges and considerations for expanding the Artificial Intelligence of Things (AIoT) ecosystem.
Byung Woon Kim, Ga Eun Choi
wiley +1 more source
Phase Hologram by Acoustic Metasurfaces
Small Structures, EarlyView.This work has achieved a breakthrough in holographic communication, realizing phase holographic imaging. The proposed phase holographic concept overcomes the limitations of traditional amplitude holographic energy attenuation. The design of its amplitude compensation method further addresses the key challenge of phase holographic imaging clarity ...
Xiao Guo +11 more
wiley +1 more source