# File:Polarisation (Circular).svg

Original file(SVG file, nominally 250 × 625 pixels, file size: 11 KB)
Description

The direction of the helix relative to the central axis represents the direction of the electric field of the circularly polarized light at each point in space. The blue and red lines are projections of the helix onto two planes at right angles.

There is an version which is identical to this original with the exception of phase indictors to make the phase relationship of its components clearer. Refer to Other Versions section below.

Date 12/02/07
Source Own drawing down in Mathematica, edited in the open source program Inscape.
 This vector image was created with Inkscape.
Permission
(Reusing this file)
 I, the copyright holder of this work, release this work into the public domain. This applies worldwide.In some countries this may not be legally possible; if so:I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Other versions

Derivative works of this file: Polarisation (Circular) With Phase Indicators.svg Linear polarisation

## Mathematica Code

This figure requires the use of Arrow3D, which is not included in the StandardPackages (as of Feb 2007). This can be obtained from Wolfram Research at this location. The required packages are:

<< Graphics`
<< Arrow3D`Arrow3D`

The code is:

wavefunction = ParametricPlot3D[{Sin[4t], -Cos[4t], t}, {t, 0, 5},
BoxRatios -> {1, 1, 4}, ImageSize -> 400, Boxed -> False, Axes ->
False, PlotPoints -> 600, ViewPoint -> {2, 2, 2}, PlotRange -> All]

repsi = ParametricPlot3D[{Sin[4t], -1, t, RGBColor[1, 0, 0]}, {t, 0, 5},
BoxRatios -> {4, 1, 1}, ImageSize -> 500,
Boxed -> False, Axes -> False, PlotPoints -> 600, PlotRange -> All]

impsi = ParametricPlot3D[{-1, -Cos[4t], t, RGBColor[0, 0, 102/255]}, {t, 0, \
5}, BoxRatios -> {4, 1, 1}, ImageSize -> 500, Boxed -> False, Axes -> False,
PlotPoints -> 600, PlotRange -> All]

end = ParametricPlot3D[{Sin[t], -Cos[t], 0}, {t, 0,
2π}, BoxRatios -> {4, 1, 1}, ImageSize -> 500, Boxed -> False,
Axes -> False, PlotPoints -> 600, PlotRange -> All]

xaxis = Graphics3D[Arrow3D[{0, 0, -1}, {0,

uaxis = Graphics3D[Arrow3D[{0, -1, 0}, {0, 3, 0}, HeadSize ->

vaxis = Graphics3D[Arrow3D[{-1, 0, 0}, {3, 0, 0}, HeadSize ->

plane = Graphics3D[Polygon[{{1.2, 1.2, 0}, {1.2, -1.2,
0}, {-1.2, -1.2, 0}, {-1.2, 1.2, 0}}]]

crate = WireFrame[Graphics3D[Cuboid[{1, 1, 0}, {-1, -1, 5}]]]

Show[wavefunction, xaxis, uaxis, vaxis, plane, repsi, impsi, end, crate]

## File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current06:38, 12 February 2007250 × 625 (11 KB)Inductiveload
03:01, 12 February 2007250 × 625 (373 KB)Inductiveload{{Information |Description= |Source=Own drawing down in Mathematica, edited in Inscape. |Date=12/02/07 |Author=inductiveload |Permission={PD-self} |other_versions=Linear polarisation [[:image:Polarisation (Elliptical)
The following pages on the English Wikipedia link to this file (pages on other projects are not listed):

## Global file usage

The following other wikis use this file:

• Usage on bn.wikipedia.org
• Usage on bs.wikipedia.org
• Usage on de.wikipedia.org
• Usage on en.wikibooks.org
• Usage on es.wikipedia.org
• Usage on et.wikipedia.org
• Usage on fa.wikipedia.org
• Usage on fr.wikipedia.org
• Usage on fr.wikiversity.org
• Usage on he.wikipedia.org
• Usage on jv.wikipedia.org
• Usage on km.wikipedia.org
• Usage on ko.wikipedia.org
• Usage on mk.wikipedia.org
• Usage on ne.wikipedia.org
• Usage on no.wikipedia.org
• Usage on pt.wikipedia.org
• Usage on sa.wikipedia.org
• Usage on te.wikipedia.org
• Usage on vi.wikipedia.org
• Usage on zh.wikipedia.org
• Usage on zh.wikibooks.org