Results 191 to 200 of about 114,337 (308)

Inverse-designed large field-of-view polychromatic metalens for tri-color scanning fiber endoscopy. [PDF]

Commun Eng
Xie N, Zhou Z, Fröch JE, Carson MD, Majumdar A, Seibel EJ, Böhringer KF.   +6 more
europepmc   +1 more source

Narrowband Detection via Charge Collection Narrowing Organic Photodetector Enabled by Low Bandgap Random Terpolymer for Biometric Sensing

Advanced Functional Materials, EarlyView.
A novel low‐bandgap random terpolymer is designed for narrow band detection in charge collection narrowing (CCN) based organic photodetectors. With a relative thin active layer (<1 µm), the CCN‐based devices achieved a narrowband response of 68 nm full‐width‐at‐half‐maximum at 916 nm, together with Responsivity values of 0.13 A W−1 and dark current of ...
Matilde Brunetta, Zhuoran Qiao, Adibah Zamhuri, Francesco Furlan, Martina Rimmele, Peter A. Gilhooly‐Finn, Lewis M. Cowen, Filip Aniés, Patipan Sukpoonprom, Stanley Cazaly, Julianna Panidi, Flurin Eisner, Martin Heeney, Bob C. Schroeder, Nicola Gasparini   +14 more
wiley   +1 more source

Fiber-based angular demultiplexer using nanoprinted periodic structures on single-mode multicore fibers. [PDF]

Nat Commun
Yermakov O, Zeisberger M, Schneidewind H, Lorenz A, Wieduwilt T, Schwuchow A, Khosravi M, Tiess T, Schmidt MA.   +8 more
europepmc   +1 more source

Mid-wave infrared beam steering based on high-efficiency liquid crystal diffractive waveplates

, 2017
Fangwang Gou, Fenglin Peng, Qitian Ru, Yun‐Han Lee, Haiwei Chen, Ziqian He, Tao Zhan, Konstantin L. Vodopyanov, Shin‐Tson Wu   +8 more
openalex   +1 more source

Distinctive Doping Behavior of Conjugated Polymers With Pendant‐Side Conjugation for Enhanced Thermoelectric Properties

Advanced Functional Materials, EarlyView.
Novel conjugated polymers with side‐chain π‐conjugation are developed to enhance organic thermoelectric properties. Remarkably, the pendant doping in the conjugated polymers preserved strong intermolecular ordering in the film states even at high FeCl3 dopant concentrations (16 – 32 mM), achieving a promising power factor > 10 µW m−1 K−2 across a wide ...
Hyeokjun Kim, Sang Beom Kim, Seungok Pyo, Jaeyoung Jang, In Hwan Jung   +4 more
wiley   +1 more source

Direct Writing of Quasi-Sinusoidal and Blazed Surface Relief Optical Transmission Gratings in Bi₁₂GeO₂₀, Er: LiNbO₃ and Er: Fe: LiNbO₃ Crystals by Nitrogen Ion Microbeams of 5 MeV and 10.5 MeV Energy. [PDF]

Sensors (Basel)
Bányász I, Nagy G, Havránek V, Pujol MC, Nagyné Szokol Á, Kármán G, Magnusson R, Rajta I.   +7 more
europepmc   +1 more source

Artificial Modulation of the Hydrogen Evolution Reaction Kinetics via Control of Grain Boundaries Density in Mo2C Through Laser Processing

Advanced Functional Materials, EarlyView.
A laser‐driven strategy enables precise microstructural modulation of Mo₂C, achieving nanoscale grain control (15.6 ± 5 nm) and an ultrahigh grain boundary density (130 µm−1). Moreover, high‐angle grain boundaries enhance active sites, facilitate electron transport, and optimize hydrogen adsorption kinetics, significantly reducing overpotential.
Seok‐Ki Hyeong, Byung‐Joon Moon, Aram Lee, Min Ji Im, Hee Yun Yang, Ji‐Hee Choi, Seung‐Il Kim, Ji‐Yun Moon, Seoungwoong Park, Sung Kyu Jang, Tae‐Wook Kim, Jae‐Hyun Lee, Sukang Bae, Seoung‐Ki Lee   +13 more
wiley   +1 more source

Diffractive lenses for neutron techniques. [PDF]

Sci Rep
Dhanalakshmi Veeraraj MR, Qu D, Zhao S, Qi P, Jefimovs K, Busi M, Kohlbrecher J, David C, Strobl M, Vila-Comamala J.   +9 more
europepmc   +1 more source

Near‐Field Phonon Nanoscopy and Imaging of Structural Variants in Mixed Phase BiFeO3

Advanced Functional Materials, EarlyView.
Nano‐Fourier transform infrared spectroscopy and scattering scanning near‐field optical microscopy imaging reveal the phonon response of nanoscale phase variants in mixed‐phase BiFeO3 (BFO). Direct mid‐infrared imaging of associated distinct vibrational signatures is used as a non‐invasive optical detection method for electrical switching of ...
Dawei Zhang, En‐Ming You, Lei Wang, Byung‐Kweon Jang, Tanzeela Yousaf, Pengfei Zhang, Jincheol Kim, Chan‐Ho Yang, Jan Seidel   +8 more
wiley   +1 more source

An achromatic metasurface waveguide for augmented reality displays. [PDF]

Light Sci Appl
Tian Z, Zhu X, Surman PA, Chen Z, Sun XW.   +4 more
europepmc   +1 more source