Show cases:

Free space diffraction 

• Diffraction: beam sampling (english)

• Diffraction: échantillonnage (french)

Thin lens

• Thin lens (english)

• La lentille mince (french)

Self-focusing

• Nonlinear lens (english)

• Lentille non linéaire (french)

Thick lens

• Lentille boule (french)

Focusing of gaussian beams

• Focalisation d'un faisceau gaussien (french)