File:Q-plate for OAM 1.svg
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Captions
Captions
q-plate with q = 1/2
Summary edit
| Description |
English: Schematic depiction of a q-plate with q = 1/2 that can be used to transform a circularly-polarized Gaussian light beam into a beam with helical wavefronts with a unit pitch. For details see: [Marrucci et al., Phys. Rev. Lett. 96, 163905, DOI:10.1103/PhysRevLett.96.163905]. Čeština: Schematické vyobrazení q-destičky s q = 1/2, jíž lze užít pro transformaci kruhově polarizovaného Gaussovského svazku světla na svazek se šroubovicovitými vlnoplochami s jednotkovým stoupáním. Pro bližší informace viz: [Marrucci et al., Phys. Rev. Lett. 96, 163905, DOI:10.1103/PhysRevLett.96.163905]. |
| Date | |
| Source | Own work |
| Author | JozumBjada |
Licensing edit
I, the copyright holder of this work, hereby publish it under the following license:
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.
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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:: *)
(*Q-Plate*)
(* ::Subtitle:: *)
(*q-plate with q = 1/2*)
(* ::Input::Initialization:: *)
curve[a_,y_]:=-(1/2) E^(-2 a) (E^(4 a)-y^2)
avals=(1/2. Log[-2#])&/@{-1.5,-1.4,-1.3,-1.2,-1.1,-1.,-0.9,-0.8,-0.7,-0.6,-0.5,-0.4,-0.3,-0.2,-0.1,-4*^-2,-8*^-3,-1*^-5};
plot=Plot[Evaluate@Flatten@Table[curve[a,y],{a,avals}],{y,-1,1},PlotStyle->Darker@LightBlue,PlotRange->{-1,1},RegionFunction->(#1^2+#2^2<=1&),AspectRatio->1,Axes->False];
(* ::Input::Initialization:: *)
lines=Cases[InputForm[plot],_Line,Infinity];
lines=Show@RegionProduct[DiscretizeGraphics[lines],MeshRegion[{{0},{.2}},Line[{1,2}]]];
surfaces=GraphicsComplex[lines[[1,1]],lines[[1,2,-1]]];
(* ::Input::Initialization:: *)
plottubes=With[{f=1/2 ArcTan[y,-x]},VectorPlot[{Cos[f],Sin[f]},{x,-1,1},{y,-1,1},VectorMarkers->None,RegionFunction->(#1^2+#2^2<=1&),Frame->None,PlotRangePadding->None,VectorStyle->Thick,VectorScale->0.02,VectorPoints->30]];
tubes=Cases[InputForm[plottubes],_Line,Infinity];
tubes=tubes/.{x_?NumericQ,y_?NumericQ}:>{x,y,0.1}/.Line[l_]:>Tube[l,0.005];
(* ::Input::Initialization:: *)
qplate=Graphics3D[{
Lighter@Blue,tubes,EdgeForm[],Opacity[.4],Rotate[surfaces,- \[Pi],{0,0,1}],Opacity[.2],EdgeForm[Blue],Cylinder[{{0,0,0},{0,0,0.2}},1.05]
},ImageSize->2000,Boxed->False,Method->{"CylinderPoints"->80},ViewPoint->{-0.871,-2.1271,2.4871},ViewVertical->{-0.23839,-0.073117,0.96841}
];
(* ::Input:: *)
(*SetDirectory[NotebookDirectory[]]*)
(*Export["qplate.svg",gr]*)
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:32, 26 January 2022 | | 2,500 × 3,411 (1.33 MB) | JozumBjada (talk | contribs) | Cross-wiki upload from cs.wikipedia.org |
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