Results 111 to 120 of about 207,009 (229)
Grating‐Lens Empowered Metafiber for Large‐Angle Light Collection With 3D Nanoprinted Structures
Laser &Photonics Reviews, Volume 20, Issue 20, 21 October 2026.A grating‐lens‐based Metafiber enables efficient light coupling into single‐mode fibers at large incidence angles. By combining diffraction and focusing on the fiber facet using a 3D nanoprinted holographic structure, light is selectively coupled only at specific angles while suppressing unwanted signals. This approach achieves high coupling efficiency
Jun Sun, Markus A. Schmidt
wiley +1 more source
, 2007 The exhibition,"Azimuth", looks at earth and space in a series of visually spectaculor works by the two artists. Daniel Armstrong’s series of digital photographs are heavily manipulated grids of astronomical images sampled from the night sky with time ...
Daniel Armstrong (13065927) +1 more
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Laser &Photonics Reviews, Volume 20, Issue 19, 7 October 2026.Femtosecond‐laser inscription enables precise positioning of fiber Bragg gratings within the cladding, introducing new spatial and modal design freedoms. Auxiliary‐waveguide, near‐core evanescent‐field, and direct cladding‐mode‐excitation architectures provide complementary pathways toward multiparameter, vector, distributed, and environmentally ...
Koustav Dey +3 more
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Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.Abstract The Aurora hydrothermal vent field (AVF) is the first confirmed active vent system on the Arctic Ocean seafloor, located at the western end of the ultraslow spreading Gakkel Ridge. It marks a distinctive endmember among ridge‐axis hydrothermal systems, where volcanic construction and ultramafic influence co‐exist.
Matthias Pilot +3 more
wiley +1 more source
Multi-Channel ScanSAR for High-Resolution Ultra-Wide-Swath Imaging [PDF]
, 2008 Multi-channel radar systems enable to overcome the inherent limitation of conventional synthetic aperture radar (SAR). An example is the combination of digital beamforming on receive in elevation with multi-aperture SAR signal reconstruction in azimuth ...
Moreira, Alberto +2 more
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Fifty Years Later: Revisiting Viking 2 Seismic Signals Through InSight
AGU Advances, Volume 7, Issue 7, October 2026.Abstract For nearly 50 years, the origin of the candidate seismic signals recorded by Viking 2 remained unresolved because of limited instrumental sensitivity, onboard observation, data compression, and the absence of Martian seismic context. Here we reconstruct the Viking seismic workflow and reinterpret the two Viking candidate events, recorded on ...
Wanbo Xiao +3 more
wiley +1 more source
Satellite‐Derived Upper‐Level Vorticity as an Indicator of Short‐Term Typhoon Intensity Evolution
AGU Advances, Volume 7, Issue 7, October 2026.Abstract Accurate short‐term tropical cyclone (TC) intensity forecasting remains challenging because rapidly evolving inner‐core structures are difficult to observe at sufficiently high temporal resolution. Here, we derive an area‐mean upper‐level vorticity indicator (VORm) from minute‐scale atmospheric motion vectors retrieved from the Fengyun‐4B ...
Pan Xia +9 more
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Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.Abstract Mid‐mantle (660–2,000 km) seismic observations are commonly attributed to thermo‐chemical heterogeneities or phase transitions, yet many observed features remain difficult to reconcile with these mechanisms alone. It has been shown that the depth‐dependent behavior of bridgmanite deformation generates a strain‐induced seismic discontinuity ...
John Keith Magali +3 more
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Rational Preferences under Ambiguity [PDF]
This paper analyzes preferences in the presence of ambiguity that are rational in the sense of satisfying the classical ordering condition as well as monotonicity.
Simone Cerreia-Vioglio +4 more
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Key Parameters for the Ionospheric Detection of Tsunamis From the 29 July 2025 Kamchatka Event
Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.Abstract It has been demonstrated that tsunamis generate internal gravity waves (GWs) detectable in the ionosphere within 20–60 min after their generation at the ocean surface. Despite numerous simulation and observation studies on ionospheric signatures of tsunamis, the detection of Co‐tsunamic Ionospheric Disturbances (CTIDs) and distinguishing them ...
Clélia Maréchal +4 more
wiley +1 more source