Results 311 to 320 of about 378,095 (341)
Some of the next articles are maybe not open access.
Diffraction efficiency of discrete-carrier holograms
Soviet Journal of Quantum Electronics, 1976The dependence of the diffraction efficiency of holograms on the size, optical properties, and concentration of light-sensitive particles was determined for materials composed of discrete sensitive particles (known as discrete-carrier materials). The maximum values of the diffraction efficiency were plotted as topograms.
Ts Mateeva, V Kh Sŭĭnov, M I Kovachev
openaire +2 more sources
Diffraction efficiency of layer transmission optics
Quantum Electronics, 1995The efficiency of diffraction optics, in the form of transmission gratings and zone plates, in the soft x-ray range is considered. Analytic expressions are obtained for the diffraction efficiency. These expressions contain all the parameters of transmission gratings and zone plates: the optical constants of the materials, thickness, focal length ...
Aleksandr V Vinogradov +1 more
openaire +2 more sources
Approximate diffraction theories: efficient modeling of diffractive optical elements
Diffractive Optics and Micro-Optics, 2002A new formulation of the generalized Kirchhoff approximation is presented which provides improved accuracy and a higher flexibility to model surface relief structures. The predicted diffraction amplitude is compared with rigorous coupled wave theory.
openaire +2 more sources
Diffraction efficiency of evanescent wave holograms
Soviet Journal of Quantum Electronics, 1978A diffraction efficiency of 1.93% is reported for holograms recorded in photographic plates as a result of interference between waves, one of which is evanescent.
V Kh Sŭĭnov +3 more
openaire +2 more sources
Diffraction efficiency of photochromic absorption gratings
Optics Communications, 1983Abstract Efficiencies of thick photochromic absorption gratings are theoretically investigated. The treatment is based on a realistic photochromic grating model, which includes both spatial and temporal variations of the absorption coefficient. Simple analytic solutions for dynamic diffraction characteristics are derived.
openaire +2 more sources
Efficiency of quantized diffractive phase elements
Optics Communications, 1992Abstract The quantization of the transmission or reflection of diffractive phase elements is of fundamental concern to allow the use of fabrication methods established in micro-circuit technology. It influences the diffraction efficiency η of the element.
openaire +2 more sources
Effects of fabrication errors on diffraction efficiency for a diffractive membrane
Chinese Optics Letters, 2016Ruoqiu Wang +4 more
openaire +2 more sources
An overview of precision oncology basket and umbrella trials for clinicians
Ca-A Cancer Journal for Clinicians, 2020Kristian Thorlund, Edward J Mills
exaly