Airy pattern formed by A Circular Laser Beam


In optics, a Gaussian beam is a beam of electromagnetic radiation whose transverse electric field and intensity (irradiance) distributions are well approximated by Gaussian functions. Many lasers emit beams that approximate a Gaussian profile. A circular laser beam with uniform intensity profile, focused by a lens, will form an Airy pattern at the focal plane of the lens.

Related formulas


IoThe intensity at the center of the focus (Pa/m2)
P0The total power of the beam (Pa)
DThe beam diameter (m)
λThe wavelength (m)
fThe focal length of the lens (m)