Results 91 to 100 of about 32,036 (281)
Total angular momentum sorting in the telecom infrared with silicon Pancharatnam-Berry transformation optics [PDF]
, 2019 Parallel sorting of orbital angular momentum (OAM) and polarization has recently acquired paramount importance and interest in a wide range of fields ranging from telecommunications to high-dimensional quantum cryptography.
Capaldo, Pietro +4 more
core +2 more sources
Spectroscopic Signatures of Doping in Thin Films of Semiconducting Single‐Walled Carbon Nanotubes
Small, EarlyView.This review presents an overview of the spectroscopic changes of semiconducting single‐walled carbon nanotubes upon chemical, electrochemical or electrostatic doping. The presence of holes or electrons directly affects visible to far‐infrared absorption, near‐infrared fluorescence and electroluminescence as well as Raman spectra, which enables in‐situ ...
Jana Zaumseil
wiley +1 more source
, 2000 We report the first calculations of mode patterns of unstable-cavity lasers with truly two-dimensional transverse geometries. A detailed account of numerical techniques, incorporating a nonorthogonal beam-propagation method, and results for cavities with
Cheng +19 more
core +2 more sources
Polarization-Independent Metasurface Lens Based on Binary Phase Fresnel Zone Plate [PDF]
, 2020 Xing Li, Jing Tang, Jonathan M. Baine
openalex +1 more source
Journal of Synchrotron Radiation, EarlyView.The development of a criterion for near‐optimal selection of the Paganin‐filter parameter based on noise power analysis measured via an image's noise power spectrum is described.The Paganin filter, widely employed in propagation‐based phase‐contrast X‐ray computed tomography with synchrotron light, attenuates phase effects and suppresses high‐frequency
Eduardo X. Miqueles +3 more
wiley +1 more source
Solar Photocatalytic Degradation of Azo Dye in Aqueous TiO2 Suspension Assisted by Fresnel Lens
International Journal of Photoenergy, 2012 Solar TiO2 photocatalytic process assisted by a Fresnel lens was investigated for treating an azo dye wastewater of Acid Orange 10 (AO10). Response surface methodology (RSM) was employed to assess the effect of critical process parameters (including ...
Wen-Shiuh Kuo, Wen-Yu Chen
doaj +1 more source
X-ray interferometry with transmissive beam combiners for ultra-high angular resolution astronomy
, 2009 Interferometry provides one of the possible routes to ultra-high angular resolution for X-ray and gamma-ray astronomy. Sub-micro-arc-second angular resolution, necessary to achieve objectives such as imaging the regions around the event horizon of a ...
Krizmanic, J. F., Skinner, G. K.
core +1 more source
Journal of Synchrotron Radiation, EarlyView.A physics‐driven deep learning model enables single‐shot retrieval of 3D phase and absorbance from shot‐noise‐limited hard X‐ray holograms. Validated on both synthetic and experimental data, it provides robust reconstruction under weak illumination.X‐ray holographic microscopy is a three‐dimensional (3D) imaging technique for nanoscale‐resolution ...
Jihwan Kim +4 more
wiley +1 more source
Electrons and X‐rays for diffraction and imaging
Acta Crystallographica Section D, EarlyView.The use of X‐rays and electrons for diffraction and imaging of soft biological samples is compared.A comparison is provided between the use of electrons and X‐rays for collecting diffraction data from small protein crystals and imaging data from cells and tissues.
Colin Nave +2 more
wiley +1 more source
A Bayesian approach to spectroscopic depth sectioning for locating dopant atoms
Journal of Microscopy, EarlyView.Abstract Locating dopants in 3D is of great interest as advanced materials and devices increasingly rely on control at atomic dimensions, and microscopy tools are constantly in development for this purpose. One potential tool is electron energy loss spectroscopy (EELS) depth sectioning, where a core‐loss signal is collected as a function of electron ...
Michael Deimetry +3 more
wiley +1 more source