Article ID Journal Published Year Pages File Type
849238 Optik - International Journal for Light and Electron Optics 2013 4 Pages PDF
Abstract

Propagation of a hollow Gaussian beam diffracted by a circular phase aperture is studied without making the paraxial approximation. The analytical expression of the intensity of the apertured hollow Gaussian beam is presented in the far field. The influences of the truncation parameter and the order of hollow Gaussian beam on the intensity distributions are discussed. It is shown that a circular Ͽ-phase aperture can be used to transform a hollow Gaussian beam into a ring-shaped beam in the far field with the appropriate parameters.

Related Topics
Physical Sciences and Engineering Engineering Engineering (General)
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