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Physics
Classical Physics
Optics
Intensity of a Gaussian laser beam
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[QUOTE="roam, post: 6051473, member: 120460"] I have read your article last year but my question is not really about tight focusing or the effects of focusing itself. We can suppose that the beam comes straight out of the laser and is not being focused down by lenses. A lot of people divide the total power by the area of the beam to get what they variously call intensity or power density. So for a Gaussian beam with a radius ##w(z)## at the point ##z## where the measurement is taken, we have: $$\frac{P_{\text{Total}}}{\pi w(z)^{2}}$$ What do you think about this quantity? Does this make sense given that the distribution of power is not uniform? :confused: [/QUOTE]
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Forums
Physics
Classical Physics
Optics
Intensity of a Gaussian laser beam
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