Plotting the far fieldΒΆ

This example contains the simulation of a plane wave scattered by a spiral of fifteen glass spheres on a glass substrate under oblique incidence. Click here to download the Python script.

../../../_images/top_2d.png

ambient DSCS
../../../_images/top_1d.png

ambient DSCS (integrated over \(\alpha\))
../../../_images/bottom_2d.png

substrate DSCS
../../../_images/bottom_1d.png

substrate DSCS (integrated over \(\alpha\))

After the simulation has run, the differential scattering cross section is evaluated in a post processing step. The left column shows the 2D-differential scattering cross section, \(\mathrm{DSCS}(\alpha, \beta) = \frac{\mathrm{dSCS}}{\mathrm{d}\Omega}\), whereas the right column shows the 1D distribution (i.e., the integral over the azimuthal direction coordinate), \(\mathrm{DSCS}(\beta) = \frac{\mathrm{dSCS}}{\mathrm{d}\cos\beta}\).

In the substrate far field, the critical angle is visible as a ring-shaped feature.

Click on the following link to view the API documentation of the function that is used to calculate and plot the fields. smuthi.postprocessing.graphical_output.show_scattering_cross_section()