Results 71 to 80 of about 118 (118)

Femtosecond Pulse Shaping with Semiconductor Huygens' Metasurfaces

open access: yesAdvanced Optical Materials, EarlyView.
Spatially variant silicon Huygens' metasurfaces enable femtosecond pulse shaping by tailoring the spectral phase and amplitude of incident pulses. Two key functionalities are demonstrated: temporal stretching and pulse splitting of an input Gaussian pulse.
Katsuya Tanaka   +10 more
wiley   +1 more source

Understanding the Temperature Conditions for Controlled Splicing Between Silica and Fluoride Fibers

open access: yesAdvanced Photonics Research, EarlyView.
Thermal splicing conditions are investigated between silica and ZrF4 fibers, focusing on mechanical strength. A fiber Bragg grating characterises the thermal profile in the filament splicer's hot zone. Results indicate a narrow temperature window for strong joints.
Antreas Theodosiou   +7 more
wiley   +1 more source

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

open access: yesAdvanced Photonics Research, EarlyView.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik   +7 more
wiley   +1 more source

Mimicking Symmetry‐Breaking Einstein Ring by Optical Lens

open access: yesAdvanced Photonics Research, EarlyView.
This article uses an optical lens to emulate the gravitational lensing effect and observe the Einstein ring (ER) patterns. The symmetry‐breaking ER, i.e., Einstein cross, is observed utilizing a rotation‐symmetry‐breaking hemi‐ellipsoid lens. Deformed Einstein cross patterns induced by noncollinearly alignment of the light source–lens–observer are ...
Jun‐Liang Duan   +5 more
wiley   +1 more source

Polarization Management on Anisotropic Thin‐Film Lithium Niobate Platform

open access: yesAdvanced Photonics Research, EarlyView.
This review focuses on x‐cut thin‐film lithium niobate (TFLN), exploring strategies to mitigate anisotropy and mode hybridization. It covers polarization beam splitters, rotators, splitter‐rotators, polarizers, and polarization‐insensitive components. Key applications include polarization‐division multiplexing, polarization‐insensitive modulation, and ...
Kaixuan Chen   +9 more
wiley   +1 more source

A Force Myography (FMG) Armband Based on Micro‐Structured Textile‐Pressure Sensors for Human‐Machine Interface (HMI)

open access: yesAdvanced Sensor Research, EarlyView.
This study introduces a textile‐based capacitive pressure sensor featuring a triangular prism microstructure, which significantly enhances sensitivity to 5.52% kPa−¹ and supports a wide sensing range up to 330 kPa. The sensor's performance is validated in a 4‐channel capacitive pressure‐based force myography (cFMG) armband for gesture recognition ...
Rayane Tchantchane   +3 more
wiley   +1 more source

Nanocrystal Compressive Residual Stresses: A Strategy to Strengthen the Bony Spines of Osteocytic and Anosteocytic Fish

open access: yesAdvanced Science, EarlyView.
Advanced neoteleost fishbones, such as medaka, challenge bone adaptation strategies. While zebrafish bones contain osteocyte‐mediated porosity, medaka bones lack it, raising questions about alternative reinforcement mechanisms. Using advanced imaging, this study reveals higher residual compressive strains in medaka bone, suggesting an adaptation that ...
Andreia Silveira   +7 more
wiley   +1 more source

Implantable Self‐Powered Systems for Electrical Stimulation Medical Devices

open access: yesAdvanced Science, EarlyView.
In this paper, the design strategy and clinical application of ISS are discussed in depth from four aspects: the design and optimization of the energy collection module, the selection and preparation of adaptive electrode materials, the innovation of system design strategy, and the biological effect of electrical stimulation of ISS.
Xi Cui, Li Wu, Chao Zhang, Zhou Li
wiley   +1 more source

High Fat Low Carbohydrate Diet Is Linked to CNS Autoimmunity Protection

open access: yesAdvanced Science, EarlyView.
Mapping global epidemiological data to macronutrient supply reveals high carbohydrate, in contrast to high fat supply, associates with increased multiple sclerosis (MS) prevalence and incidence. This is confirmed in a mouse MS model, experimental autoimmune encephalomyelitis (EAE), using isocaloric diets: a high carbohydrate diet aggravates, a high ...
Duan Ni   +15 more
wiley   +1 more source

Mg‐doped α‐Ga2O3 Nanorods for the Construction of Photoelectrochemical‐Type Self‐Powered Solar Blind UV Photodetectors and Underwater Imaging Application

open access: yesAdvanced Science, EarlyView.
A low‐cost hydrothermal technique is employed to optimize the synthesis of Mg‐doped α‐Ga2O3 nanorod arrays. Compared to undoped α‐Ga2O3 photodetectors, the photocurrent response is increased by 435%, with a peak responsivity of 34.54 mA W−1. Furthermore, a 5 × 5 PEC‐SBPD array based on Mg‐doped α‐Ga2O3 nanorod arrays is constructed for underwater ...
Xin Zhou   +9 more
wiley   +1 more source

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