1. Visualizing Near-Field Single-Slit Diffraction: A Tutorial Applet Based on the Half-Wave Zone Model
The theoretical basis used in this applet can be found in the next applet. The applet allows for the visualization of the diffraction pattern along both the X and Y axes via the 'Vertical/Horizontal Slit Case' button.
![[size=85] Resultant phasors and amplitudes for half-period zones at point [b][color=#1e84cc]A(x, y)[/color][/b], calculated using the [url=https://www.geogebra.org/m/c5rhh2tz]Kirchhoff diffraction integral [/url]for a [i]horizontal[/i] slit, with zone dimensions determined according to the proposed model.[/size]](https://www.geogebra.org/resource/nk9ksjqa/UNL96PDzsMOhKHt2/material-nk9ksjqa.png)