Summary edit

Licensing edit

This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic 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. https://creativecommons.org/licenses/by-sa/2.5CC BY-SA 2.5 Creative Commons Attribution-Share Alike 2.5 truetrue

If you use this image, you have to credit this: Image by א (Aleph), http://commons.wikimedia.org

Wenn Sie dieses Bild verwenden, müssen Sie folgendes angeben: Bild von א (Aleph), http://commons.wikimedia.org

Gnuplot Script edit

# #############################################################
#
# This file was created by א and may 
# only be used under the terms of the 
# Creative-Commons-License CC-BY-SA-2.5 
# with apropriate attribution. 
#
# You MUST credit this: א (Aleph), http://commons.wikimedia.org
#
# #############################################################

# Gnuplot code as follows:
reset

set terminal svg enhanced size 800 800 fsize 36 fname "Arial"
set output "Gaussian_beam_wavefront_radius.svg"

# Constant
z0=4.0

# Configure coordinate system
unset border
unset tics
set xtics axis mirror ("z_0" z0) scale 0.5
set key off
set xrange [0:15]
set yrange [0:20]
set label "z" at 13,-1
set label "R" at -1,17.5

set object 1 rect from screen 0, screen 0 to screen 1 back fillcolor rgb "white" fillstyle solid linewidth 0

# Arrows along the axes
set style arrow 2 filled size 1,10
set arrow arrowstyle 2 from 0,0 to 15,0
set arrow arrowstyle 2 from 0,0 to 0,20

# Function for gaussian beam
R(z) = z*(1+(z0/z)**2)

# Grey lines
set style arrow 3 nohead lt rgb "grey"
set arrow arrowstyle 3 from z0,0 to z0,2*z0+2
set arrow arrowstyle 3 from z0-2,2*z0 to z0+2,2*z0

set dummy z

# Plot radius
plot R(z) lt rgb "red" linewidth 3

# Undo everything
reset