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I am trying to work out what ionization occurs passing laser light through air. I am trying to find out what the radius of ionized air would be, what distance it would cover (eg 1m, 2m etc...) and what the power of the laser would have to be. How would I go about working this out? Does anyone know the mathematical relationship that would describe this?

Thanks for your help,

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# Ionization of air with a laser

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