Abstract We review radiometric techniques that take advantage of photon counting and stem from the quantum laws of nature. We present a brief history of metrological experiments and review the current state of experimental quantum radiometry. Publication Details Author S. Polyakov A. Migdall Publication Type Journal Article Year of Publication 2009 Volume 56 Number of Pages 1045-1052 DOI 10.1080/09500340902919477 Journal Journal of Modern Optics DOIGoogle Scholar Contributors Groups JQI