Results 101 to 110 of about 1,224,469 (239)

Retina‐Inspired Bi‐Based Terahertz Photonic Neuromorphic Devices

open access: yesAdvanced Science, EarlyView.
Combined with effective band alignment and substrate engineering, bismuth materials are introduced to form terahertz photonic bio‐inspired devices with picosecond short‐term plasticity to enable multi‐scene visual perception. Thus obtained hardware through the terahertz optical neural network (THz‐ONN) demonstrates high recognition accuracy, providing ...
Pujing Zhang   +14 more
wiley   +1 more source

Progressive Adaptive Fringe Projection Without Additional Projected/Captured Images for High-Dynamic-Range 3D Measurement

open access: yesPhotonics
Highly reflective surfaces often cause intensity saturation in captured fringe images, leading to phase errors and inaccurate 3D reconstruction. High-dynamic-range (HDR) fringe projection profilometry is an effective solution to this problem, but ...
Haotian Tang   +7 more
doaj   +1 more source

Structural and Compositional Effects on the Scintillation Properties of Fast Emitting Metal‐Organic Frameworks

open access: yesAdvanced Science, EarlyView.
The crystalline structure, the atomic numbers of the constituent elementsand the size of MOF crystals each influence their photoluminescence and scintillation properties in distinct ways. Together, these factors provide valuable guidelines for designing systems with optimized performance and tunable timing characteristics, arising from the synergistic ...
Francesca Cova   +8 more
wiley   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

open access: yesAdvanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh   +8 more
wiley   +1 more source

Recent advances in femtosecond laser writing inside transparent materials

open access: yes
Modification of transparent materials with ultrafast lasers has attracted considerable interest due to a wide range of applications including laser surgery, integrated optics, optical data storage, 3D microand nano-structuring [1].T Three different types
Kazansky, P.G.   +9 more
core   +1 more source

Multiferroic‐Centric Materials and Systems Engineering for Battery Applications: An Insight Into Mechanisms, Strategies, and Characterizations

open access: yesAdvanced Science, EarlyView.
Multiferroic order parameters – polarization, magnetization, and ferroelastic strain – are positioned as dynamic design variables for batteries. Their mechanistic roles, practical tuning through fabrication and external fields, and ferroic‐resolved characterization routes are unified into a closed‐loop framework, revealing how coupled ferroic responses
Jiaqi Su   +13 more
wiley   +1 more source

Radical‐Mediated In Situ Fluorescence Dye Deposition: A Simple Interfacial Signal Amplification Reaction for Ultrasensitive Immunoassay on Barcode Beads

open access: yesAdvanced Science, EarlyView.
A radical‐mediated in situ fluorescence dye deposition (RIFD) reaction containing merely three elements of beads, dyes, and radicals is discovered for the first time, and its underlying mechanism is elucidated. This simple RIFD enables the interfacial and ultrafast deposition of free dyes onto barcode beads, serving as a powerful signal amplification ...
Jiayu Zhang   +8 more
wiley   +1 more source

Watt-level sub-100 fs third near-infrared window laser generated by self-seeded coherent Raman amplification based on erbium-ytterbium co-doped fiber

open access: yesHigh Power Laser Science and Engineering
In this paper, we prove that the third near-infrared (NIR-III) window high-power laser with wavelength in the range of 1600–1800 nm can be obtained by the coherent Raman fiber amplification technique through theoretical and experimental study.
Jiaxuan Zhang, Jintao Fan, Minglie Hu
doaj   +1 more source

Black Hole Quencher‐Enhanced Plasmonic Photothermal Conversion

open access: yesAdvanced Science, EarlyView.
Researchers have developed a universal method to boost plasmonic photothermal conversion by attaching black hole quencher (BHQ) molecules to matched metal nanostructures. This hybrid approach increases efficiency by roughly threefold, reaching up to 69.1% in the near‐infrared‐II window.
Ruiyuan Zhang   +3 more
wiley   +1 more source

Ultrafast light blade: anisotropic sensitivity of isotropic medium to femtosecond laser radiation

open access: yes, 2009
Material processing with ultrafast lasers has recently attracted considerable interest mainly due to a wide range of applications including laser surgery and 3D micro- and nano-structuring.
Shimotsuma, Yasuhiko   +8 more
core   +1 more source

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