beijing optics

Focused light propagation in Gaussian beams.

Gaussian Beam Optics

Gaussian Beam Optics I. Introduction In your typical optics lab, most of us, as scientists or engineers, are familiar with  geometrical optics, which assumes that the wavelength of the light approaches zero. When constructing a formalism for light propagation and optical analysis, this assumption allows us to ignore any effects resulting from diffraction and greatly […]