Results 181 to 190 of about 63,998 (357)

Non‐Uniform Programmable Photonic Waveguide Meshes

open access: yesLaser &Photonics Reviews, EarlyView.
Integrating defect cells into uniform hexagonal waveguide meshes overcomes the fundamental spectral and temporal limitations of programmable photonics. By leveraging the Vernier effect through non‐uniform coupled cavities, this architecture achieves a tenfold increase in free spectral range and ultra‐fast sampling times, paving the way for next ...
Cristina Catalá‐Lahoz, José Capmany
wiley   +1 more source

Surface characterization of carbon fiber reinforced polymers by picosecond laser induced breakdown spectroscopy

open access: green, 2017
Rodolfo Ledesma   +4 more
openalex   +2 more sources

Recent Advances in the Laser‐Based Fabrication and Applications of High‐Entropy Alloy Nanoparticles

open access: yesMetalMat, EarlyView.
This review presents recent advances in the laser‐based fabrication of high‐entropy alloy nanoparticles, focusing on scalable, environmentally friendly, and compositionally tunable synthesis methods. It highlights the critical influence of laser parameters on nanoparticle size, phase, and morphology, enabling tailored properties for applications in ...
Bibek Kumar Singh   +4 more
wiley   +1 more source

Picosecond laser to treat complex pigmentary disorders. [PDF]

open access: yesJAAD Case Rep
Maredia H   +3 more
europepmc   +1 more source

Characterization of Ultrafast Decomposition Dynamics in Nitrate Esters

open access: yesPropellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Ignition of energetic materials initiates chemical reactions on atomic length scales within femtoseconds, making these reactions difficult to investigate experimentally. The technique of femtosecond time‐resolved mass spectrometry (FTRMS) can capture molecular rearrangement and bond‐breaking events in isolated molecules with sub‐50 femtosecond
Madison K. Minvielle   +3 more
wiley   +1 more source

Picosecond laser-engineered osteon-inspired concentric micropatterns on titanium implants regulate cellular behaviour to facilitate osseointegration. [PDF]

open access: yesMater Today Bio
Yie KHR   +14 more
europepmc   +1 more source

Dynamics of Purification in Cu2O

open access: yesphysica status solidi (b), EarlyView.
Rydberg excitons in Cu2O have been shown to be highly efficient in neutralizing and screening charged impurities, which is referred to as purification. In this manuscript, the dynamics of the purification process are investigated under varying probe exciton‐ and plasma density. The transient absorption of Rydberg excitons is analyzed and five different
Binodbihari Panda   +3 more
wiley   +1 more source

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