The Poynting vector in Laguerre-Gaussian laser modes
نویسنده
چکیده
It is found that the rotation of the Poynting vector of a Laguerre-Gaussian laser mode is proportional to the Gouy phase and for most cases of interest, rotates through less than one revolution in reaching the far field. For a p=O mode, we show the expression for the rotation is particularly simple and independent of 1. At the radius corresponding to maximum intensity, it yields a rotation of only f ~r/2 as z. + k m.
منابع مشابه
The Poynting vector in Laguerre±Gaussian beams and the interpretation of their angular momentum density
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