This is very interesting. The concept of a black body was central in the fomulation of quantum theory. Now an ideal black body is supposed to absorb any and all the radiation falling on it. This is converted into heat and then the body radiates "blackbody" or "natural" radiation according to its temperature.
The idea of a blackbody goes back to Gustav Kirchhoff in about 1860. (A blackbody is an ideal object, as proposed by Kirchhoff, with ideal properties. A black body is one that is approximately a blackbody in the visual range.)
It was Samuel P. Langley who made the first actual blackbody experiments. Others, e.g. Wm. Ritchie and Balfour Stewart etc., had worked with black surfaces and bodies. Langley wanted to calibrate the astronomical bolometer that he had refined. To simulate a blackbody he used a blackened copper disk and this was used as the source of radiation for the calibration. (Langley is mostly known for his work in aviation, but he was a distinguished "physical astronomer" before that.)
Langley's measurements spurred interest in Kirchhoff's ideas on black radiation. This got Crova, among others, to begin the formulation of radiation laws that ultimately led Planck to his celebrated result. What we now call Wien's displacement law was first dicovered by Crova. He called it the displacement of the "violet boundary."
Anyway, back to the article you were citing. If you scroll down there is a link that lead to another article on black things: http://www.newscientist.com/article/dn3356-mini-craters-key-to-blackest-ever-black.html
This is a report based on work from the UK's NPL and this is a relate article: http://www.npl.co.uk/optical_radiation/superblack.html
It has pictures of the NPL "superblack."
One thing that I would like to find out is the emission profiles for both superblack and laser black. In other words, are these nearly blackbodies or just blackened bodies?