Chinese Journal of Lasers, Volume. 25, Issue 5, 457(1998)
Diffraction of a Gaussian Beam Passing through a Circular Phase-plate
The analytical expression for the diffraction distribution on the axis of a Gaussian beam through a circular phase- plate is obtained. It is found that the intensity of the diffracted light is larger than that of the free Gaussian beam in a wide range, but the intensity in the infinite far field is less than that of the free Gaussian beam.
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[in Chinese], [in Chinese]. Diffraction of a Gaussian Beam Passing through a Circular Phase-plate[J]. Chinese Journal of Lasers, 1998, 25(5): 457
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