Results 221 to 230 of about 1,759 (291)

Non-Destructive Permittivity and Moisture Analysis in Wooden Heritage Conservation Using Split Ring Resonators and Coaxial Probe. [PDF]

Sensors (Basel)
Pittella E, Cannazza G, Cataldo A, Cavagnaro M, D'Alvia L, Masciullo A, Schiavoni R, Piuzzi E.   +7 more
europepmc   +1 more source

Mitigating Efficiency Roll‐Off in Phosphor‐Sensitized Fluorescence OLEDs via Molecular Polarity‐Based Benzofuropyridine Host Engineering

Advanced Optical Materials, EarlyView.
Positional isomerism in dibenzofuran‐based n‐type hosts modulates molecular polarity, charge‐transport balance, and emissive‐layer packing. The higher‐polarity BFPDB‐2 host facilitates efficient energy funneling, reduced aggregation, and preferential dipole orientation, leading to phosphor‐sensitized fluorescence OLEDs with enhanced external quantum ...
Nargis Ali, Xuyao Song, Yun‐Hi Kim, Min Chul Suh   +3 more
wiley   +1 more source

Defected ground structure antenna array with metasurface inspired interlinked CSRR for 5G millimeter wave applications. [PDF]

Sci Rep
Ali EM, Alibakhshikenari M, Elmunim NA, Virdee BS, Rashid N, Mariyanayagam D, Chaudhary MA, Abbasi NA, Livreri P, Saber T.   +9 more
europepmc   +1 more source

Direct Measurement of the Singlet Lifetime and Photoexcitation Behavior of the Boron Vacancy Center in Hexagonal Boron Nitride

Advanced Optical Materials, EarlyView.
Negatively charged boron vacancy defects in hexagonal boron nitride promise near‐surface quantum sensing, but their internal spin transition rates are only partly understood. This work directly measures the defect's singlet‐state lifetime, 15(3) ns, using a nanosecond rise‐time dual‐pulse photoluminescence‐recovery method, and shows that high laser ...
Richard A. Escalante, Andrew J. Beling, Daniel G. Ang, Niko R. Reed, Justin J. Welter, John W. Blanchard, Cecilia Campos, Edwin Coronel, Klaus Krambrock, Alexandre S. Leal, Paras N. Prasad, Ronald L. Walsworth   +11 more
wiley   +1 more source

Nanophotonic perfect absorber with ultra-broadband terahertz-to-infrared response via hybrid-material design for advanced optical sensing. [PDF]

PLoS One
Hamza MN, Tariqul Islam M, Lavadiya S, Ud Din I, Sanches B, Koziel S, Iffat Naqvi S, Farmani A, Panda A, Islam MS.   +9 more
europepmc   +1 more source

Revealing the Transmission Hologram's Refractive Index Profile Stored in a Photohydrogel: A Structural Characterization

Advanced Optical Materials, EarlyView.
A theoretical model is developed to visualize three‐dimensional refractive index profiles in transmission holographic gratings. In this work, it is applied to photopolymerizable hydrogels, enabling detailed analysis of the internal structure of recorded holograms and their evolution under different degradation conditions.
Belén Nieto‐Rodríguez, Manuel G. Ramírez, José Carlos García‐Vázquez, Tomás Lloret, Inmaculada Pascual   +4 more
wiley   +1 more source

Edible electronics: Current landscape and emerging pathways. [PDF]

J Mater Res
Caironi M, Luzio A.
europepmc   +1 more source

Chip‐Integrated Metasurface‐GaAsSb Nanowire Array Photodetectors for Single‐Pixel Polarimetric Imaging

Advanced Optical Materials, EarlyView.
A 2×2 multiplexed GaAsSb nanowire photodetector array integrated with L‐shaped metasurfaces is developed for miniaturized infrared polarimetry. Leveraging non‐radiating anapole states that facilitate near‐field enhancement, the device demonstrates strong polarization selectivity at 835 nm.
Longsibo Huang, Ziyuan Li, Yitao Yang, Yang Yu, Lei Xu, Li Li, Songqin Zhang, Han Wang, Wenwu Pan, Chaohao Chen, Weiqi Jin, Wen Lei, Lorenzo Faraone, Chennupati Jagadish, Lan Fu   +14 more
wiley   +1 more source

Unsupervised design and geometry optimization of high-sensitivity ring-resonator-based sensors. [PDF]

Sci Rep
Haq T, Koziel S, Pietrenko-Dabrowska A.
europepmc   +1 more source