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Nondegenerate twophoton absorption rate 
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#1
Jun1813, 09:11 AM

P: 8

Hey guys,
a quick one. I've noticed that you can compute the two photon absorption coefficient by [itex]\beta = \frac{2 \hbar \omega}{I^2}W[/itex] where W is the transition rate for TPA. (wiki link) Now my question is what about nondegenerate two photon absorption? by that i mean two different frequencies of light being absorbed, what will be the equation linking beta and W? Thanks in advance =) 


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