File:Two Slit Interference, 2500nm wl, 0.1mm d, close up average.png

Original file(1,000 × 500 pixels, file size: 385 KB, MIME type: image/png)

Description
English: DDensity plot of two slit interference of 2500nm light thtrough slits 0.1mm apart. The equation of the wave at a point is:

where

  • d is the slit separations
  • k is the wavenumber = 2π/λ
  • x is the distance from the origin on the line containing the slits
  • y is the distance from the plane contining the slits

Thisp lot shows the intensity of the wave at a given point:

  • Where δ is the phase difference
Date
Source Own work
Author Inductiveload
Permission
(Reusing this file)
Public domain 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.

Mathematica Code

lambda = 2500*10^-9;
k = 2*Pi/lambda;
d = 0.1*10^-3;

path1[x_, y_] := Sqrt[y^2 + (x + d/2)^2];
path2[x_, y_] := Sqrt[y^2 + (x - d/2)^2];
phasediff[x_, y_] := (2*Pi/lambda )*(path1[x, y] - path2[x, y])

close = DensityPlot[
      x = xmm/1000;
      y = ymm/1000;
      Evaluate[
        4Cos[phasediff[x, y]/2]^2
        ],
      {xmm, -0.075, 0.075},
      {ymm, 0, 0.075},
      PlotPoints -> 2000,
      AspectRatio -> Automatic,
      ImageSize -> 1000,
      Mesh -> False,
      FrameLabel -> {"x/mm", "y/mm"}];

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

13 May 2009

File history

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

Date/TimeThumbnailDimensionsUserComment
current05:42, 13 May 2009Thumbnail for version as of 05:42, 13 May 20091,000 × 500 (385 KB)Inductiveloadmistaken upload
05:42, 13 May 2009Thumbnail for version as of 05:42, 13 May 2009479 × 17 (876 bytes)Inductiveload{{Information |Description={{en|1=Description=Density plot of two slit inteference of 800nm light thtrough slits 0.1mm apart. The equation is: <math>u(x,y,t)= \sin \left( k \sqrt{ \left( x-\frac{d}{2} \right)^2 + y^2} \right)+ \sin \left( k \sqrt{ \left(

The following page uses this file: