On 02/08/2010 11:41 AM, Jones Beene wrote: > > I have lost the citation from a few weeks ago that claimed that below a > threshold of about 10 nm, the expected blackbody frequency is upshifted for > nanostructures, in general.
If I understand you, and if this is true, then it's a violation of the second law of thermodynamics. It's provable by a direct, simple second law argument that all thermal radiators of the same temperature have the same spectrum, with the caveat that radiation is reduced proportionally at frequencies at which the object is reflective or transparent. Here's the argument: When two objects at the same temperature are placed next to each other in a uniformly hot oven (with everything at the same temperature to start with), and a dichroic filter is placed between them, if one radiates more strongly at the filter's peak reflection frequency than the other, their temperatures will change. (The one which radiates more strongly at the mirror's reflection frequency will "see" more radiation coming in than the other object, and so will get warmer.)
