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app:rough_surface
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app:rough_surface [2018/01/30 16:32] pklapetek |
app:rough_surface [2018/01/30 16:33] (current) pklapetek |
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| As a result we obtain a far field radiation pattern as shown below. We can see that roughness leads to scattering, which is obvious. The results can be directly compared to e.g. far field measurements using scatterometry when we have such measurement for particular surface. It is however necessary to perform simulation on statistically relevant surface, e.g. on surface large enough, or average multiple simulations on different images. | As a result we obtain a far field radiation pattern as shown below. We can see that roughness leads to scattering, which is obvious. The results can be directly compared to e.g. far field measurements using scatterometry when we have such measurement for particular surface. It is however necessary to perform simulation on statistically relevant surface, e.g. on surface large enough, or average multiple simulations on different images. | ||
| - | {{ :app:c_rough_result.png?500 |}} | + | {{ :app:c_rough_result.png?400 |}} |
| As we have simulated the surface, we know in advance what should be angular position of the maxima - they should be spaced by 90 degrees, with angle to normal of 32.5 degrees. Simulated data show the maximum at 33±2 degrees which is in agreement to this result; with better statistics the angle uncertainty should decrease furthermore. | As we have simulated the surface, we know in advance what should be angular position of the maxima - they should be spaced by 90 degrees, with angle to normal of 32.5 degrees. Simulated data show the maximum at 33±2 degrees which is in agreement to this result; with better statistics the angle uncertainty should decrease furthermore. | ||
app/rough_surface.txt · Last modified: 2018/01/30 16:33 by pklapetek
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