Results 31 to 40 of about 58,951 (312)
The role of clinical diagnosis criteria on the frequency of accommodative insufficiency [PDF]
International Journal of Ophthalmology, 2019 AIM: To estimate and compare the frequency of accommodative insufficiency (AI) within the same clinical population sample depending on the type of clinical criteria used for diagnosis.
María García-Montero +5 more
doaj +1 more source
Journal of Taibah University for Science, 2022 The objective of this work is to measure the influence of the Mth coherent state on the optics model of two atoms interacting with two-mode quantized field. Also, two atoms interacting together is included in this optics model.
Abdallah A. Nahla, Anas A. Othman
doaj +1 more source
On the Twistability of Partially Coherent, Schell-Model Sources
PhotonicsIn this paper, the problem of assessing the twistability of a given bona fide cross-spectral density is tackled for the class of Schell-model sources, whose shift-invariant degree of coherence is represented by a real and symmetric function, denoted as μ(
Riccardo Borghi
doaj +1 more source
Spatial Poincaré Plots as Descriptors of Speckle Pattern Second-Order Statistics
Journal of Biomedical Photonics & Engineering, 2017 It is demonstrated herein that the use of spatial Poincaré plots provides an efficient means to describe short and long-range correlations in the spatial structure of the measured intensity distribution of scattered coherent fields.
Anindya Majumdar, Sean J. Kirkpatrick
doaj +1 more source
Object-oriented Matlab adaptive optics toolbox [PDF]
, 2014 Object-Oriented Matlab Adaptive Optics (OOMAO) is a Matlab toolbox dedicated to Adaptive Optics (AO) systems. OOMAO is based on a small set of classes representing the source, atmosphere, telescope, wavefront sensor, Deformable Mirror (DM) and an imager ...
Correia, C +3 more
core +1 more source
IEEE Photonics Journal, 2017 The correlation singularities of a partially coherent Laguerre–Gaussian (LG) electromagnetic beam in a uniaxial crystal is shown to possess interesting evolution behavior. The analytical formula for the cross-spectral density matrix of a partially
Yongtao Zhang, Liuzhan Pan, Yangjian Cai
doaj +1 more source
Photonics, 2022 Photothermal weak absorption is useful for the diagnosis of absorbing defects on the surface of fused silica optics in high-power lasers. However, how they relate to the laser-induced damage performance remains unclear, especially for a fused silica ...
Zhaohua Shi +8 more
doaj +1 more source
Quantum statistical theory of optical phenomena [PDF]
Proceedings of the National Academy of Sciences, 1977 The purpose of this paper is to develop a density matrix formulation for optical phenomena that can be applied to both steady and transient states and to both resonance and off-resonance regions. To demonstrate the application, this theory has been applied to the steady-state one-photon and two-photon processes.
S H, Lin, H, Eyring
openaire +2 more sources
Generalized pencils of rays in statistical wave optics [PDF]
, 1983 The recently introduced generalized pencil of Sudarshan which gives an exact ray picture of wave optics is analysed in some situations of interest to wave optics.
Simon, R
core +2 more sources
IEEE Photonics Journal, 2017 A stochastic beam generated by a recently introduced source of Schell type with rectangular multi-Gaussian spectral degree of coherence is shown to posses interesting novel features on propagation in uniaxial crystals.
Yonghua Mao, Zhangrong Mei
doaj +1 more source