File:FITR penetration depth (n dependence).gif
Original file (783 × 614 pixels, file size: 38 KB, MIME type: image/gif, 0.1 s)
Captions
Captions
Summary[edit]
| Description |
Deutsch: Die Kurvenschar zeigt die 1/e-Eindringtiefe des evaneszenten Feldes in Abhängigkeit vom Einfallswinkel (x) und dem Brechungsindex in Einheiten der einfallenden Wellenlänge. Der Y-Achsenabschnitt 1 bedeutet, dass die Amplitude das evaneszenten Feldes innerhalb einer Wellenlänge auf den 1/e-ten Teil abgefallen ist.
Der angegebene Brechungsindex n gibt das Verhältnis von Brechungsindex im Medium der einfallenden Welle zum Brechungsindex im Medium der evaneszenten Welle an. () Gut zu erkennen ist der Grenzwinkel der Total-Reflexion am linken Rand des Plots unterhalb dessen sich kein evaneszentes Feld ausprägt.English: The plot shows the 1/e(Intensity)-penetration depth of the evanescent wave against the angle of incidence towards the normal on the boundary surface. n_e is the refractive index of the medium the wave is propagating in. n_t ist the refractive index of the medium in which the evanescent wave decays exponentially. |
| Date | |
| Source | Own work |
| Author | Kondephy |
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SAGE-sourcecode:
var("n") f(x)=1/(2*pi)*(n^2*sin(x*pi/180)^2-1)^(-1/2) bereich=[0,90] #xmin xmax #parameter n_werte = [1.9,1.8,1.7,1.6,1.5,1.4,1.3,1.2,1.1]
kurvenschar = [plot(f(x,n=k),bereich,hue=(k),legend_label="n="+str(k)[0:3], gridlines=true) for k in n_werte] grafik = Graphics()
for singleplot in kurvenschar:
grafik += singleplot
xaxis=text("penetration depth in wavelengths", (25,1), rotation=90.0, fontsize=13, horizontal_alignment='left', vertical_alignment='top', rgbcolor=(0,0,0)) yaxis=text("angle of incidence", (90,0), rotation=00, fontsize=13, horizontal_alignment='right', vertical_alignment='bottom', rgbcolor=(0,0,0)) grafik+=xaxis grafik+=yaxis
label=text("n=n1/n2", (85,0.66), fontsize=16, rgbcolor=(0,0,0)) grafik+=label grafik.show(ymin=-0,ymax=1.0,figsize=[8,8]) grafik.save("kurvenschar.png")
Licensing[edit]
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- You are free:
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- 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.
| Annotations | This image is annotated: View the annotations at Commons |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:22, 11 June 2012 | | 783 × 614 (38 KB) | Kondephy (talk | contribs) | * "penetration depth" => "1/e-penetration depth" * "n1/n2" => "n_e/n_t" wie im deutschen artikel |
| 15:42, 6 June 2012 |  | 783 × 614 (38 KB) | Kondephy (talk | contribs) | nicht länger animiert sondern wie empfohlen als kurvenschar und mit angabe, was n ist. | |
| 23:43, 4 June 2012 |  | 800 × 582 (100 KB) | Kondephy (talk | contribs) | axis now with labels. bigger fontsize in general | |
| 23:10, 4 June 2012 |  | 783 × 582 (78 KB) | Kondephy (talk | contribs) |
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