Klaus Mangold (a photographer), Joseph A Shaw and Michael Vollmer (who are physicists) have just published a paper, The physics of near-infrared photography in the European Journal of Physics. This is the best technical paper on the subject that I've seen since Clark's book Photography by Infrared (which went out of print in 1984).
The European Journal of Physics has a policy of making papers freely available for 30 days from publication, although you will need to set up an online account to access it.
Amongst other things the paper tells us that red wine, Diet Coke and even espresso coffee are transparent to near-infrared wavelengths.
This is the URL: stacks.iop.org/EJP/34/S51
The citation is Eur. J. Phys. 34 (2013) S51–S71