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The relative phase shift of off-axial Gaussian beams through an apertured and misaligned optical system

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By introducing the hard-edge aperture function into a finite sum of complex Gaussian functions, an approximate analytical expression of the relative phase shift for an off-axial Gaussian beam passing through an apertured and misaligned paraxial ABCD optical system has been derived. It is shown that it is related with the off-axial beam parameters, the aperture size, the ABCD matrix elements and misaligned parameter. Some numerical simulations are also illustrated for its application. The obtained results could be extended to the two-dimensional case.
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Document Type: Research Article

Affiliations: Department of Physics, Zhejiang University, Hangzhou 310027, China

Publication date: 01 July 2004

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