Abstract
The exact full-wave generalization of the cylindrically symmetric scalar real-argument Laguerre–Gauss beam is determined. The radiation intensity of the resulting Laguerre–Gauss wave is deduced, and the main characteristics of the radiation intensity pattern are described. The total power is evaluated, where n is the radial mode number. By the use of as the quality parameter, the characteristics of the quality of the paraxial beam approximation to the full Laguerre–Gauss wave are discussed.
© 2007 Optical Society of America
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