Irradiance-variance behavior by numerical simulation for plane-wave and spherical-wave optical propagation through strong turbulence

2000 ◽  
Vol 17 (6) ◽  
pp. 1092 ◽  
Author(s):  
Stanley M. Flatté ◽  
James S. Gerber
Keyword(s):  
Numerical Simulation ◽  
Plane Wave ◽  
Spherical Wave ◽  
Strong Turbulence ◽  
Optical Propagation

Preprocessing for Interference Fringe of Spherical Object Wave

2014 ◽  
Vol 644-650 ◽  
pp. 4225-4228
Author(s):  
Fei Gao ◽  
Xian Feng Xu ◽  
Zhi Yong Jiao ◽  
Dai Lin Li ◽  
Yu Lei Jia
Keyword(s):  
Numerical Simulation ◽  
Plane Wave ◽  
Interference Fringe ◽  
Spherical Wave ◽  
Concentric Circle ◽  
Object Wave ◽  
Wave Fronts ◽  
Spherical Object ◽  
Preprocessing Method

A simple preprocessing method for interference fringe of holograms generated between spherical object wave fronts and plane wave reference is suggested. The formulae to calculate the diameters of the interference concentric circle and then to get the radius of spherical wave are deduced strictly and the flowchart for the algorithm is given clearly. By using the proposed method the characteristics of a spherical object wave can be achieved directly with only one recording frame and then a simulated one can be gained by numerical simulation. The corresponding experiments show that this technique is simple, effective and convenient for use.

scholarly journals Hybrid holographic Maxwellian near-eye display based on spherical wave and plane wave reconstruction for augmented reality display

2021 ◽  
Vol 29 (4) ◽  
pp. 4927
Author(s):  
Zi Wang ◽  
Xu Zhang ◽  
Guoqiang Lv ◽  
Qibin Feng ◽  
Hai Ming ◽  
...  
Keyword(s):  
Augmented Reality ◽  
Plane Wave ◽  
Spherical Wave

LOW-FREQUENCY ACOUSTIC SCATTERING BY AN INHOMOGENEOUS MEDIUM

2005 ◽  
Vol 15 (10) ◽  
pp. 1459-1468 ◽  
Author(s):  
GEORGE VENKOV
Keyword(s):  
Refractive Index ◽  
Plane Wave ◽  
Inhomogeneous Medium ◽  
Acoustic Waves ◽  
Spherical Wave ◽  
Low Frequency ◽  
Far Field ◽  
Scattering Medium ◽  
Wave Incidence ◽  
Plane Wave Incidence

This paper deals with the scattering of time-harmonic acoustic waves by inhomogeneous medium. We study the problem to recover the near and the far field using a priori information about the refractive index and the support of inhomogeneity. The incident spherical wave is modified in such a way as to recover the plane wave incidence when the source point approaches infinity. Applying the low-frequency expansions, the scattering medium problem is reduced to a sequence of potential problems for the approximation coefficients in the presence of a monopole singularity located at the source of incidence. Complete expansions for the integral representation formula in the near field as well as for the scattering amplitude in the far field are provided. The method is applied to the case of a spherical region of inhomogeneity and a radial dependent refractive index. As the point singularity tends to infinity, the relative results recover the scattering medium problem for plane wave incidence.

Properties of the transformation from the spherical wave expansion to the plane wave expansion

Radio Science ◽  
2008 ◽  
Vol 43 (1) ◽  
pp. n/a-n/a ◽  
Author(s):  
Cecilia Cappellin ◽  
Olav Breinbjerg ◽  
Aksel Frandsen
Keyword(s):  
Plane Wave ◽  
Spherical Wave ◽  
Plane Wave Expansion ◽  
Wave Expansion ◽  
Spherical Wave Expansion

X-ray Fourier transform holography by amplitude-division-type Fresnel zone plate interferometer

2018 ◽  
Vol 25 (1) ◽  
pp. 241-247 ◽  
Author(s):  
Minas Balyan ◽  
Levon Haroutunyan
Keyword(s):  
Fourier Transform ◽  
Plane Wave ◽  
Fresnel Zone ◽  
Spherical Wave ◽  
Zone Plate ◽  
Fresnel Zone Plate ◽  
Focal Distance ◽  
X Ray ◽  
Wave Forms ◽  
The Fourier Transform

A two-block X-ray Fresnel zone plate system forms two-beams – a plane wave and a spherical wave – which interfere at the focal distance of the virtual source of the spherical wave. An object placed in the path of the plane wave forms an object wave and the spherical wave is the reference wave. The recorded intensity distribution is the Fourier transform hologram of the object. Analytical and numerical calculations show the possibilities of this scheme to record the hologram and reconstruct the object image. Examples of recording holograms of a one-dimensional cosine-like grating and a two-dimensional grid object as well as reconstruction of the images are considered.

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