Show cases:

Free space diffraction 

Diffraction (will come soon)

Thin lens (will come soon)

Thin_lens (will come soon)

Thick lens (will come soon)

Thick_lens (will come soon)

Focalization of gaussian beams (will come soon)

Gaussian_beams_focalization (will come soon)

Cavity: ABCD (will come soon)

Cavity_abcd

Cavity: diffraction (will come soon)

Cavity_diffraction (will come soon)