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Direct and real-time observation of hole transport dynamics in anatase TiO2 using X-ray free-electron laser
Carrier dynamics affects photocatalytic systems, but direct and real-time observations in an element-specific and energy-level-specific manner are...
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Coherent response of the electronic system driven by non-interfering laser pulses
The strength of light–matter interaction in condensed matter is fundamentally linked to the orientation and oscillation strength of the materials’...
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Strain to shine: stretching-induced three-dimensional symmetries in nanoparticle-assembled photonic crystals
Stretching elastic materials containing nanoparticle lattices is common in research and industrial settings, yet our knowledge of the deformation...
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A simple high-speed random number generator with minimal post-processing using a random Raman fiber laser
A simple novel method for random number generation is presented, based on a random Raman fiber laser. This laser is built in a half-open cavity...
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1.27 kW, 2.2 GHz pseudo-random binary sequence phase modulated fiber amplifier with Brillouin gain-spectrum overlap
We present a 2.2 GHz modulated, 1.27 kW output power, monolithic fiber amplifier based on pseudo-random binary sequence (PRBS) phase modulation. The...
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Deterministic control of ferroelectric polarization by ultrafast laser pulses
Ultrafast light-matter interactions present a promising route to control ferroelectric polarization at room temperature, which is an exciting idea...
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Nonlinear multi-magnon scattering in artificial spin ice
Magnons, the quantum-mechanical fundamental excitations of magnetic solids, are bosons whose number does not need to be conserved in scattering...
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Linear-to-circular polarization conversion with full-silica meta-optics to reduce nonlinear effects in high-energy lasers
High-energy lasers have benefited from intense efforts to bring light-matter interactions to new standards and to achieve laser fusion ignition. One...
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Real-space observation of surface structuring induced by ultra-fast-laser illumination far below the melting threshold
Intense short laser pulses are an intriguing tool for tailoring surface properties via ultra-fast melting of the surface layer of an irradiated...
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Investigation of spin wave dynamics in Au/CoFeB/Au multilayers with perpendicular magnetic anisotropy
We have carried out an experimental investigation of the spin-wave dynamics in the Au/CoFeB/Au multilayer consisting of a ferromagnetic film with...
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Frequency–angular resolving LiDAR using chip-scale acousto-optic beam steering
Thanks to its superior imaging resolution and range, light detection and ranging (LiDAR) is fast becoming an indispensable optical perception...
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Photo-elasticity of silk fibroin harnessing whispering gallery modes
Silk fibroin is an important biomaterial for photonic devices in wearable systems. The functionality of such devices is inherently influenced by the...
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Spatially-resolved Brillouin spectroscopy reveals biomechanical abnormalities in mild to advanced keratoconus in vivo
Mounting evidence connects the biomechanical properties of tissues to the development of eye diseases such as keratoconus, a disease in which the...
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Anomalous electrons in a metallic kagome ferromagnet
Ordinary metals contain electron liquids within well-defined ‘Fermi’ surfaces at which the electrons behave as if they were non-interacting. In the...
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Generation of even and odd high harmonics in resonant metasurfaces using single and multiple ultra-intense laser pulses
High harmonic generation (HHG) opens a window on the fundamental science of strong-field light-mater interaction and serves as a key building block...
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Influence of CoFeB layer thickness on elastic parameters in CoFeB/MgO heterostructures
The surface acoustic waves, i.e., surface phonons may have huge potential for future spintronic devices, if coupled to other waves (e.g., spin waves)...
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Application of a self-injection locked cyan laser for Barium ion cooling and spectroscopy
Compact, high power lasers with narrow linewidth are important tools for the manipulation of quantum systems. We demonstrate a compact,...
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Inducing Dzyaloshinskii–Moriya interaction in symmetrical multilayers using post annealing
The interfacial Dzyaloshinskii-Moriya Interaction (iDMI) is an antisymmetric exchange interaction that is induced by the broken inversion symmetry at...
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Laser picoscopy of valence electrons in solids
Valence electrons contribute a small fraction of the total electron density of materials, but they determine their essential chemical, electronic and...
