Results 221 to 230 of about 463,586 (333)

Achromatic 3D Multi‐Color Orbital Angular Momentum Holography

open access: yesAdvanced Science, EarlyView.
This work presents an achromatic 3D multicolor orbital angular momentum (OAM) holography based on spatial multiplexing. By integrating wavelength‐specific lens functions onto monochromatic Fourier OAM‐dependent holograms and high‐resolution spatial discretization and interleaving via two‐photon lithography (TPL), the approach addresses axial chromatic ...
Hang Su   +5 more
wiley   +1 more source

Multi‐Mechanical Regulation of 3D Printed Triply Periodic Hyperbolic Surfaces via Fourier Synthesis‐Based Free Modeling

open access: yesAdvanced Science, EarlyView.
Arbitrary structural regulations of triple periodic hyperbolic surfaces are achieved using mathematical Fourier construction and 3D printing technology, enriching the geometric forms and achieving optimized mechanical behaviors. Abstract Triply periodic hyperbolic surfaces (TPHSs) have attracted significant attention due to their exceptional ...
Yanhong Zhang   +6 more
wiley   +1 more source

Encapsulated Organohydrogel Couplants for Wearable Ultrasounds

open access: yesAdvanced Electronic Materials, EarlyView.
Hydrogels are ideal for wearable ultrasonic devices but suffer from water loss during long‐term monitoring. Adding excessive glycerol increases attenuation, while elastomer encapsulation causes uneven interfaces due to shrinkage and scattering acoustic waves.
Xiaoru Dong   +7 more
wiley   +1 more source

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