Atom gratings produced by large angle atom beam splitters [PDF]
, 2001 An asymptotic theory of atom scattering by large amplitude periodic potentials is developed in the Raman-Nath approximation. The atom grating profile arising after scattering is evaluated in the Fresnel zone for triangular, sinusoidal, magneto-optical ...
A.P. Chu +37 more
core +2 more sources
Energy Science &Engineering, EarlyView.This study explores the potential of solar PV and concentrating PV (CPV) technologies as sustainable energy solutions for Nigeria, highlighting their suitability in transitioning away from fossil fuels. By harnessing abundant solar resources, these technologies offer efficient, clean, and locally adaptable alternatives, supporting energy security ...
Sani Mohammed Lawal +4 more
wiley +1 more source
Comparison of the results of restoring the radiation pattern of a conical horn antenna in the far zone based on measurements in the Fresnel zone at different positions of the antenna aperture center relative to the center of rotation [PDF]
Космические аппараты и технологииCurrently, antenna parameter measurement methods can be divided into two main groups: far-range and near-range methods. Long-range methods do not require expensive and complex equipment, but their implementation often requires an antenna range hundreds ...
Grits V. I.
doaj +1 more source
Optical Skyrmions with Tunable or Reconfigurable Topology Using Spin‐Decoupled Metaoptics
Laser &Photonics Reviews, EarlyView.The work introduces advanced optical elements capable of generating and dynamically reconfiguring complex light patterns known as optical skyrmions. By precisely shaping light polarization at the nanoscale, a single engineered metasurface can generate and manipulate robust and tunable polarization textures in an efficient and scalable way.
Andrea Vogliardi +5 more
wiley +1 more source
An ellipsoidal mirror for focusing neutral atomic and molecular beams [PDF]
, 2004 Manipulation of atomic and molecular beams is essential to atom optics applications including atom lasers, atom lithography, atom interferometry and neutral atom microscopy.
K Fladischer +30 more
core +1 more source
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
On the possibility of radar echo detection of ultra-high energy cosmic ray- and neutrino-induced extensive air showers [PDF]
, 2000 We revisit and extend the analysis supporting a 60 year-old suggestion that cosmic rays air showers resulting from primary particles with energies above 10^{18} eV should be straightforward to detect with radar ranging techniques, where the radar echoes ...
Appleton +30 more
core +2 more sources
PBR‐Inspired Controllable Diffusion for Image Generation
Computer Graphics Forum, EarlyView.Abstract Despite recent advances in text‐to‐image generation, controlling geometric layout and PBR material properties in synthesized scenes remains challenging. We present a pipeline that first produces a G‐buffer (albedo, normals, depth, roughness, shading, and metallic) from a text prompt and then renders a final image through a PBR‐inspired branch ...
Bowen Xue +3 more
wiley +1 more source
Ion beam lithography for Fresnel zone plates in X-ray microscopy
, 2013 Fresnel Zone Plates (FZP) are to date very successful focusing optics for X-rays. Established methods of fabrication are rather complex and based on electron beam lithography (EBL).
Achim Nadzeyka +49 more
core +1 more source
Evidence of Deep Water Penetration in Silica during Stress Corrosion Fracture [PDF]
, 2011 We measure the thickness of the heavy water layer trapped under the stress corrosion fracture surface of silica using neutron reflectivity experiments.
Bouchaud, E. +5 more
core +3 more sources