I'm assuming you meant re-radiated energy, in which case the wavelengths involved are extremely long IR and totally beyond the wavelengths of any laser. On the other hand, if you truly meant incident radiant energy, as in the energy arriving from the sun, then in that case, the atmosphere only absorbs 27%.
In either case, I fail to see the relevance to the present discussion.
--Boot Hill
I'll say it again, it is a publicly accessible fact. Look it up...see the Cambridge Atlas of Astronomy.
BTW, this point was brought up by a previous poster who was trying to argue that the atmosphere doesn't absorb much light; even though the light he is talking about is non-coherent and I don't even know if that's a valid comparison.