Optics is the branch of physics which is concerned with light and it's behavioural pattern and properties. Visit BYJU’S to learn about ray optics, spherical mirrors, optical instruments and more.
In this paper, we present our polynomial optics-based ray transmission model for simulating the lens flares of optical systems. Our proposed method facilitates the high-quality, real-time simulation of lens flare ghosts while properly treating all important characteristics of the phenomenon. Compared t...
M. Coherent X-Ray Optics (New York: Oxford University, 2006). Nugent, K. A. Coherent methods in the X-ray sciences. Adv. Phys. 59, 1–99 (2010). Article ADS Google Scholar Bronnikov, A. V. Reconstruction formulas in phase-contrast tomography. Opt. Commun. 171, 239–244 (1999)....
X-ray optics and generation of ultra-brilliant ultra-short X-ray pulses at X-ray free electron lasers now makes it possible to conceive entirely new analysis schemes for imaging single particles or molecular assemblies [39]. Diffraction can hence be enhanced by diffractive imaging. For m...
X-ray detectors are widely used in imaging systems for medical diagnosis or safety screening; hence, spatial resolution is an important parameter for evaluating their performance. It is usually defined as the number of distinguishable line pairs (alternating black and white lines) per millimeter, sta...
For simplicity, in order to avoid cumbersome formulas and calculations, we restrict ourselves to the case of propagation of a σ-polarized X-ray wave-field in a non-absorbing (thin) crystal “on average” oriented in the exact Bragg position,|k0+h|=|k0|=k, wherek0is the wave vector of...
Spectral emissivity is one of the most important parameters of metal radiation, with considerable influence on heat-transfer calculations, infrared signatures, pyrometry, and other high-temperature fields. Therefore, a computational model that can accurately calculate the emissivity of metal surfaces is ...
High-energy (“hard”) X-ray emission provides important information on the accelerated electrons, and the acquisition of imaging spectroscopy information on these hard X-rays is a key element in determining the spatial, temporal, and spectral properties of the electrons, and so to ultimately ...
Another important parameter for modeling the beam propagation is the waist radius and beam quality factor M2. Using expression (1) we calculated the size of the input XFEL beam on the mirrors of the focusing system in dependence of the factor M2 for our above mentioned experimental conditions,...
How to generate useful intense soft X-ray IAPs in the laboratory is an important question. In principle one can improve the efficiency either by enhancing harmonics generated from individual atoms by modifying the sub-cycle waveform16,17,27–38, or by optimizing mac- roscopic phase-matching ...