Results 151 to 160 of about 505,548 (331)

Supraballs Composed of Mie‐Resonant Silicon Nanospheres

open access: yesAdvanced Optical Materials, EarlyView.
Spherical supraballs composed of Mie‐resonant silicon nanospheres are developed through an emulsion‐templated self‐assembly process. By systematically varying constituent silicon nanosphere size and interparticle spacing—both statically through oxidation and dynamically using thermoresponsive shells—the reflection color and intensity of the supraballs ...
Shintaro Kono   +5 more
wiley   +1 more source

Smart Theremin Based on Electromagnetic Metasurfaces for Fine Dual‐Hand Perception

open access: yesAdvanced Optical Materials, EarlyView.
The proposed Meta‐Theremin leverages a frequency‐spatial multiplexing metasurface to enable robust dual‐hand perception by shielding environmental noise and confining EM fields to interaction zones. Its physics‐informed neural network decouples hand‐specific echoes, enhancing accuracy.
Che Liu   +8 more
wiley   +1 more source

Advanced Emissivity Tuning Via Femtosecond Laser Surface Engineering

open access: yesAdvanced Optical Materials, EarlyView.
Femtosecond laser surface processing (FLSP) is employed to fabricate titanium‐based metamaterials with engineered micro/nano‐scale features that exhibit spectrally selective and omnidirectional thermal emissivity. By integrating advanced ellipsometry, electromagnetic modeling, and compositional analysis, the work reveals resonance‐driven emissivity ...
Zahra Kamali Khanghah   +8 more
wiley   +1 more source

Cloaking and Antennas: From Theoretical Paradigms to Next‐Generation Intelligent Systems

open access: yesAdvanced Optical Materials, EarlyView.
The inception of electromagnetic cloaking sparked an immediate question: Can antennas be made invisible? Two decades later, this review charts the intertwined progress of major cloaking strategies (from transformation optics to scattering cancellation), metasurface technology, and their application to antennas, revealing how AI‐enabled devices are ...
Helen Guo, Xun Li
wiley   +1 more source

Further results on enumeration of perfect matchings of Cartesian product graphs

open access: yesOpen Mathematics
Counting perfect matchings is an interesting and challenging combinatorial task. It has important applications in statistical physics and chemistry. As the general problem is #P-complete, it is usually tackled by randomized heuristics and approximation ...
Wu Tingzeng, Zeng Xiaolin
doaj   +1 more source

Dominating sets in perfect graphs

open access: bronze, 1990
Derek G. Corneil, Lorna Stewart
openalex   +1 more source

Spectrally Adjustable Narrowband Photonic Device Based on Heat‐Driven Amorphous‐to‐Crystal Transformation of Si

open access: yesAdvanced Photonics Research, EarlyView.
The change in the dielectric function from the heat‐driven amorphous‐to‐crystal Si transformation can be used to engineer large spectral adjustability of Si‐based multilayered narrowband photonic devices operating in the IR region. This effect can be utilized to accurately adjust the resonance wavelength of fabricated amorphous multilayered structures ...
David Hernández Pinilla   +6 more
wiley   +1 more source

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