Results 261 to 270 of about 369,945 (331)

Switchable Bidirectional Sound Absorption Via Exceptional Point Modulation in Acoustic Metastructures with Interleaved Resonator Coupling

Advanced Science, EarlyView.
A switchable bidirectional acoustic metastructure is proposed, enabling broadband and frequency‐selective absorption via interleaved resonator coupling and exceptional point modulation. It outperforms traditional unidirectional designs, offering compact, efficient sound control from both directions and establishing a generalized framework for extending
Zichao Guo, Liangfen Du, Zirui Yang, Kexin Zeng, Ziping Lei, Zhonggang Wang, Zhendong Li, Zheng Fan   +7 more
wiley   +1 more source

Hybrid SiO₂/Si pillar-based optomechanical crystals for on-chip photonic integration. [PDF]

Nanophotonics
Poblet M, Bertelsen CV, Alonso-Tomás D, Singh R, López-Aymerich E, Goldschmidt J, Schmitt K, Dimaki M, Svendsen WE, Romano-Rodríguez A, Navarro-Urrios D.   +10 more
europepmc   +1 more source

Determination of the index profile in a graded index optical waveguide : a comparaison between perturbation method and W.K.B. analysis and chemical analysis

, 1979
A. Guez, P C Jaussaud, G. Chartier
openalex   +2 more sources

Dual Regulation of Molecular Rigidity and Orbital Engineering of Pt(II) Emitters for High‐Performance Deep‐Blue OLEDs

Advanced Science, EarlyView.
Four novel tetradentate Pt(II) emitters (PtCY, PtCY‐F, PtCY‐tBu, PtCY‐tBuF) are designed through synergistic strategy of molecular orbital engineering and steric hindrance effect. PtCY‐tBuF‐based device B4 achieves a high maximum luminance of 45 621 cd m−2, and record high external quantum efficiency (EQE) of 27.1%, 24.3%, and 21.7% at high brightness ...
Chengyao Zhang, Kewei Xu, Yun‐Fang Yang, Yuanbin She, Guijie Li   +4 more
wiley   +1 more source

Inverse Design of Multi-Wavelength Achromatic Metalens Integrated On-Chip with Planar Waveguide. [PDF]

Nanomaterials (Basel)
Podobrii M, Barulina E, Barulin A.
europepmc   +1 more source

Wearable and Implantable Devices for Continuous Monitoring of Muscle Physiological Activity: A Review

Advanced Science, EarlyView.
Recent advances in materials and device engineering enable continuous, real‐time monitoring of muscle activity via wearable and implantable systems. This review critically summarizes emerging technologies for tracking electrophysiological, biomechanical, and oxygenation signals, outlines fundamental principles, and highlights key challenges and ...
Zhengwei Liao, Ata Golparvar, Mohammad Javad Bathaei, Filipe Arroyo Cardoso, Clementine M. Boutry   +4 more
wiley   +1 more source

Rapid adiabatic couplers with arbitrary split ratios for broadband DWDM interleaver application. [PDF]

Nanophotonics
Choi D, Kim WJ, Sohn YI.
europepmc   +1 more source

All‐Biomass Nanocomposite Films via Facile and Sustainable Design Procedure for Thermal Management and Electromagnetic Interference Shielding

Advanced Science, EarlyView.
All‐biomass‐derived composite films are fabricated from wheat straw–derived nanocarbon spheres and cellulose nanofibers through a simple, scalable process, which exhibit superior integrated electrical–thermal–mechanical properties and can be applied as sustainable materials for flexible electronics and green packaging.
Junchao Ren, Chenglei Huang, Rui Tan, Jianlong Chen, Mengde Huang, Mingfeng Wang, Weiwei Liu, Bin Li, Zhong Ma, Lu Wang, Hanwu Lei, Erguang Huo, Qingfa Zhang   +12 more
wiley   +1 more source

A full Ka band gap waveguide based slot array antenna with 45° slant polarization. [PDF]

Sci Rep
Zarifi D, Farahbakhsh A, Mrozowski M.
europepmc   +1 more source

Hierarchically Porous Multiphase Si‐Based Ceramics with Synergistic Electromagnetic Wave Absorption Mechanisms

Advanced Science, EarlyView.
A novel multiphase Si‐based ceramic material with hierarchical porosity is devised via one‐step etching activation of carbon‐rich polycarbosilane ceramics. Integrating free carbon, SiC crystals, amorphous SiOC, and engineered porosity, the material surprisingly achieves exceptional electromagnetic absorption performance, offering new insights into the ...
Jiaojiao Jiang, Xiaomei Deng, Sihan Li, Xiaojun Zeng, Chunxiao Wu, Chao Yang   +5 more
wiley   +1 more source