I might have said Frank had left the building but the forum software tells me he's still online. So, before he embarrasses himself any further, let's spell this out.
Here's the graphic. As anyone who's looked could tell you, there are hundreds of such graphs available.
The horizontal axis, the INDEPENDENT parameter, is a logarithmic scale of wavelength of light, going from 0.1 to 100 microns.
The vertical axis for carbon dioxide (and water vapor) is Absorption (%).
So the graph is showing us what percentage of incident light - by frequency - is absorbed by CO2. We see three tall spikes and a few smaller bumps. Those spikes look to be centered at about 2.8, 4.5 and 18 microns (remember the scale is logarithmic). So, in what bands of light energy do those wavelengths fall. The infrared band extends from 0.7 microns to 1,000 microns. So, all three of those spikes - the ones reaching 100% - fall within the infrared band. And as the second absorption curve shows, All or parts of two of those spikes fall into regions of the spectrum NOT absorbed by water vapor AND the longest wavelength and widest spike (the lowest frequency) well within the radiant spectrum of the sun-warmed Mother Earth.
So, let's give Frank a chance to get back in the game here.
Frank, what happens to matter that absorbs energy, say, in the form of incident radiation? What changes to its characteristics take place?