The properties of beams transmitting through the convex lens

The transmission properties of the light through the glass convex lens can be analyzed by classical theory. In quasi-optical technology, the Gaussian beam transmitting through the dielectric convex lens can be analyzed by the paraxial theory. The lens can convert a divergent Gaussian beam into convergent and the beam waist radius of the output beam can be determined by the incident beam and the focal distance of the lens. In this paper, the transmission properties of the zero-order Bessel beam through the dielectric convex lens are discussed. Some simulated results are given.