Results 181 to 190 of about 103,433 (302)
Incoherent digital holograms acquired by interferenceless coded aperture\n correlation holography system without refractive lenses [PDF]
Manoj Kumar +2 more
openalex +1 more source
MEMS‐Tunable Bilayer Plasmonic Metasurfaces for Dynamic Vortex Wave Plates
This work presents a MEMS‐tunable bilayer metasurface for dynamic vortex wave plates at near‐infrared wavelengths. By electrically tuning the separation between the BMS and the MEMS mirror, the device enables reconfigurable switching between l = 2 and l = −1 vortex modes, achieving >80% polarization conversion efficiency, fast response time (9 µs), and
Chuanshuo Wang +10 more
wiley +1 more source
METHOD FOR PLANE NEAR-FIELD ACOUSTIC HOLOGRAPHY BASED ON COMPRESSIVE SAMPLING AND ITS APPLICATION
In traditional plane near-field acoustic holography reconstruction process,regardless of wave number domain filter or regularization method,they cannot solve their own ill-posed problem,and thus cannot improve the reconstruction accuracy.
DU Bao +4 more
doaj
Energy‐Controllable Manipulation on Surface Waves and Propagating Waves by Bifunctional Metasurfaces
This work presents a bifunctional metasurface for the simultaneous control of propagating and surface waves under the excitation of a circularly polarized wave with a particular helicity. It merges resonance and geometric phases to route wavefronts through distinct channels, validated via microwave experiments.
Shiqing Li +10 more
wiley +1 more source
Framework nucleic acids (FNAs) template functional nanomaterials and bridge bottom‐up assembly with top‐down lithography, offering a powerful strategy toward atomic‐level manufacturing. Atomic‐level manufacturing has rapidly emerged as a frontier in materials science, chemistry, and engineering, aiming to fabricate functional materials and devices with
Tiantian Fan +7 more
wiley +1 more source
Auricular Acupuncture for Facial Aesthetics: A Preliminary Retrospective Clinical Study of 217 Cases
ABSTRACT Objective In recent years, acupuncture has gained attention as a safe and natural method in cosmetic medicine. Auricular acupuncture has been insufficiently studied in the field of facial aesthetics. Our previous clinical observations were associated with rapid facial tightening, lifting, and slimming following auricular acupuncture, which is ...
Wangpiaoyun Zhu +4 more
wiley +1 more source
Uniform Circular Array Antenna for Dual‐Mode Orbital Angular Momentum Generation at 6 GHz
Orbital angular momentum (OAM) antennas have recently attracted attention for their potential to enhance communication capacity and and robustness against interference. However, most existing designs rely on complex multilayer feed structures. This work presents a compact, single‐layer, series‐fed dual‐mode OAM antenna composed of four patches arranged
Abdulkadir Uzun +2 more
wiley +1 more source

