Results 201 to 210 of about 5,247 (297)

Reconfigurable Geometric Phase Matching by Multilayered Nonlinear Thin‐Film Crystals

open access: yesLaser &Photonics Reviews, EarlyView.
The concept of geometric phase matching is demonstrated as a dynamically reconfigurable approach for tunable nonlinear wave mixing in multilayered nonlinear thin‐film crystals. Experimental results reveal full modulation in a bilayer structure and near‐perfect spin‐selective phase matching of second‐harmonic generation in an eight‐layer configuration ...
Danielle Ben‐Haim   +3 more
wiley   +1 more source

Chiral Quasi‐BICs Stemming From a Γ‐point Degeneracy

open access: yesLaser &Photonics Reviews, EarlyView.
Band degeneracies universally exist in 2D periodic systems. However, the studies on the intrinsic properties of those isolated points remain limited. By exploring 3D chiral perturbations, chiral quasi‐BICs are achieved through a Γ‐point degeneracy in resonant metasurfaces with C4 symmetry.
Bohan Zhang   +8 more
wiley   +1 more source

Noncatalytic Synthesis of High‐Density and Small‐Diameter WS2 Nanotubes

open access: yesNational Materials, EarlyView.
A noncatalytic strategy enables high‐density WO₂.₉ nanowire synthesis on engineered substrates. Subsequent sulfuration converts them into small‐diameter WS₂ nanotubes. Individual nanotube devices show superior photoresponse, highlighting a scalable route for optoelectronics.
Fengkai Zhou   +10 more
wiley   +1 more source

A Possible Case of Temporomandibular Joint Dislocation, Trepanation, and Metabolic Bone Disease in a Young Adolescent From North‐Central Myanmar (1000–700 bce)

open access: yesInternational Journal of Osteoarchaeology, EarlyView.
ABSTRACT This osteobiography explores the life history of an adolescent who lived during the early‐mid Bronze Age (c. 1000–700 bce) and was buried at Nyaung'gan, a site in north‐central Myanmar. Burial 3b had multiple skeletal lesions, and their bones were covered in well‐remodeled subperiosteal new bone.
Anna Willis   +3 more
wiley   +1 more source

Mechanisms and impacts of future plant invasions: research agendas and management needs under disruptive social‐ecological change scenarios

open access: yesOikos, EarlyView.
No‐analogue futures are characteristic of the Anthropocene, but how global change, and societies' responses, will affect plant invasions remains unclear. Conducting research now to address future needs is crucial for guiding invasion management and policy.
Jennifer L. Bufford   +12 more
wiley   +1 more source

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