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Paraxial imaging: Gaussian beams versus paraxial-spherical waves

โœ Scribed by Almeida, A. M.


Book ID
118169371
Publisher
American Institute of Physics
Year
1999
Tongue
English
Weight
382 KB
Volume
67
Category
Article
ISSN
0002-9505

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A model named modified hollow Gaussian beam (HGB) is proposed to describe a dark hollow beam with adjustable beam spot size, central dark size and darkness factor. In this modified model, both the beam spot size and the central dark size will be convergent to finite constants as the beam order appro