Hehe yeah, but probably hideously expensive, and there are cheaper ways to get real point sources. Quantum dots are a few nanometers in size (so << the wavelen

Hehe yeah, but probably hideously expensive, and there are cheaper ways to get real point sources. Quantum dots are a few nanometers in size (so << the wavelength that they emit) and you can get a solution of them from Sigma Aldrich for ~$500. People mix them into their samples and then use that to deconvolve the image/volume that they acquire.