Results 131 to 140 of about 54,040 (257)
Carbon Energy, EarlyView.Defect engineering anchors near‐zero‐valent Pt single atoms at oxygen vacancies of TiO2, forming distinctive Pt–Ti coordination that regulates electron density and optimizes hydrogen adsorption. The vacancy‐induced metal‐support interaction facilitates efficient electron transfer and accelerates water dissociation, enabling pH‐universal hydrogen ...
Qing Zhang +10 more
wiley +1 more source
Optical transmission through a polarization preserving single mode optical fiber at two Ar(+) laser wavelengths [PDF]
The transmission characteristics of two Ar(+) laser wavelengths through a twenty meter Panda type Polarization Preserving Single Mode Optical Fiber (PPSMOF) were measured. The measurements were done with both single and multi-longitudinal mode radiation.
Hunter, William W., Jr. +1 more
core +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Cement phases are good materials for radiative cooling thanks to the selective emissivity in IR ATW. Cement powders have high reflectance of solar radiation which reduces the thermal losses. The onset of the absorption curves is defined by bound excitons. Sulfates have higher radiated powers and reflectance than calcium silicates.
Jozef Janovec +3 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.The Cu2–xS/ZnIn2S4 composite photocatalyst is an ultrathin ZnIn2S4 nanosheet in situ grown on the surface of the Cu2–xS hollow cube, forming a unique p‐n junction structure, which exhibits excellent photocatalytic hydrogen production performance under visible light.
Yuan Liu +7 more
wiley +1 more source
Research on the System of Pulse Synthesis Pre-pump Rayleigh BOTDA technology
MATEC Web of Conferences, 2015 The conventional Rayleigh scattering Brillouin Optical Time Domain Analysis (Rayleigh BOTDA) system adopted the leakage light ahead of the pump pulse to generate Rayleigh back-scattering light.
Shang Qiufeng +3 more
doaj +1 more source
Journal of Raman Spectroscopy, EarlyView.We investigate tip‐induced bond weakening of a single alkyne center immobilized and aligned upright on Au(111) using a rigid triphenylmethane‐based tripod. By varying the tip–molecule distance, we observe shifts in the ≡C–H and –C≡C– vibrational bands via ultrahigh vacuum low‐temperature tip‐enhanced Raman scattering (TERS).
Gang Li +12 more
wiley +1 more source
Nonlinear Distortion by Stimulated Brillouin Scattering in Kramers-Kronig Receiver Based Optical Transmission. [PDF]
Sensors (Basel), 2022 Zhu Y, Du J, Shen W, He Z.
europepmc +1 more source
Photo‐Excitations in Halide Perovskites: Where Do Simulations and Experiments Meet?
Laser &Photonics Reviews, EarlyView.Aiming to bridge the gap between simulations and measurements of light–matter couplings and photo‐excitations in new functional materials, this perspective highlights insights and bottlenecks of state‐of‐the‐art experimental and theoretical methods (2D electronic spectroscopy vs.
Muhammad Sufyan Ramzan +5 more
wiley +1 more source
Numerical model for enhancing stimulated Brillouin scattering in optical microfibers. [PDF]
F1000Res, 2021 Yeap SH, Emami SD, Abdul-Rashid HA.
europepmc +1 more source
Dispersion‐Less Dissipative Soliton Fiber Laser
Laser &Photonics Reviews, EarlyView.A dispersion‐less fiber laser architecture generates high‐energy, pedestal‐free picosecond pulses without resorting to conventional pulse stretching. This energy‐managed laser achieves remarkable flexibility in pulse parameters, delivering up to 0.54 μJ$\mathrm{\mu}\mathrm{J}$ pulses with minimal spectral distortion using standard telecom components ...
Mostafa I. Mohamed +2 more
wiley +1 more source