File:Doughnut beam cross section.svg

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Original file (SVG file, nominally 875 × 875 pixels, file size: 279 KB)

Captions

Captions

Light beam with unit orbital angular momentum

Summary

[edit]
Description
English: Cross section of a Laguerre-Gaussian beam with topological charge equal to 1 and thus with orbital angular momentum of . The color hue encodes the phase of the field, from red to yellow, and the field intensity is given by the color lightness.
Čeština: Průřez Laguerrovým-Gaussovým svazkem s topologickým nábojem rovným 1 a tedy s orbitálním momentem hybnosti rovným . Barva udává fázi pole, od červené po žlutou, a intenzita je dána tmavostí.
Date
Source Own work
Author JozumBjada

Licensing

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I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.


Source code

[edit]

This figure was created using Wolfram language 12.0.0 for Microsoft Windows (64-bit) (April 6, 2019). The source code follows (formatted as a .wl package file). 

(* ::Package:: *)

(* ::Title:: *)
(*LG beam crosssection*)


(* ::Input:: *)
(*lim=2;*)
(*magne=DensityPlot[Abs[(Sqrt[x^2+y^2])Exp[-(x^2+y^2)]]^2,{x,-lim,lim},{y,-lim,lim},PlotRangePadding->None,Frame->False,PlotPoints->70,ColorFunction->GrayLevel];*)
(*phase=DensityPlot[Arg[Exp[-I ArcTan[x,y]]],{x,-lim,lim},{y,-lim,lim},PlotRangePadding->None,Frame->False,PlotPoints->200,MaxRecursion->1,ColorFunction->"SolarColors",Exclusions->(#1<0&&#2==0&),PerformanceGoal->"Quality"];*)


(* ::Input:: *)
(*res=With[{size=700},Module[{magn=Rasterize[magne,RasterSize->size],phas=Rasterize[phase,RasterSize->size]},Show[ConstantImage[Black,ImageDimensions[magn]],SetAlphaChannel[phas,magn]]]]*)


(* ::Input:: *)
(*SetDirectory[NotebookDirectory[]]*)


(* ::Input:: *)
(*Export["crosssection.svg",res,ImageResolution->200]*)
(*Export["crosssection.png",res,ImageResolution->200]*)

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current20:13, 13 January 2022Thumbnail for version as of 20:13, 13 January 2022875 × 875 (279 KB)JozumBjada (talk | contribs)Cross-wiki upload from cs.wikipedia.org

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