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| View Original: | Two Slit Interference, 2500nm wl, 0.1mm d, distant average.png (1000x500) | |||
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| Keywords: Two Slit Interference, 2500nm wl, 0.1mm d, distant average.png en Density plot of two slit interference of 2500nm light thtrough slits 0 1mm apart The equation of the wave at a point 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 x+\frac d 2 \right 2 + y 2 \right </math> where d is the slit separations k is the wavenumber 2 / 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 <math>I \approx A 2 4a 2\cos 2 \frac \delta 2 </math> Where δ is the phase difference own Inductiveload 2009-05-13 Mathematica Code <pre><nowiki> lambda 2500 10 -9; k 2 Pi/lambda; d 0 1 10 -3; path1x_ y_ Sqrty 2 + x + d/2 2; path2x_ y_ Sqrty 2 + x - d/2 2; phasediffx_ y_ 2 Pi/lambda path1x y - path2x y close DensityPlot x xmm/1000; y ymm/1000; Evaluate 4Cosphasediffx y/2 2 xmm -500 500 ymm 0 10000 PlotPoints -> 2000 AspectRatio -> 0 5 ImageSize -> 1000 Mesh -> False FrameLabel -> x/mm y/mm ; </nowiki></pre> checked Double-slit experiments | ||||
