Free-space wave propagation beyond the paraxial approximation
- 1 March 1983
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 27 (3), 1693-1695
- https://doi.org/10.1103/physreva.27.1693
Abstract
Wave propagation in free space is considered without invoking the paraxial approximation. An explanation is provided for the discrepancy which arises when the general formalism is applied to the case of a Gaussian beam.Keywords
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