I know about such suggestion for about, I guess, 20 years. It was suggested as a way to clear radioactive waste in Chrenobyl contamination area. And if you can

I know about such suggestion for about, I guess, 20 years. It was suggested as a way to clear radioactive waste in Chrenobyl contamination area. And if you can read Russian, here a paper for your amusement for semisuccessful attempt to implement that: http://www1.jinr.ru/Pepan_letters/panl_2017_6/13_Andreeva.pdf http://www1.jinr.ru/Pepan_letters/panl_2017_6/13_Andreeva.pd... It contains a short English abstract which I copy here: The influence of laser irradiation on the gamma-activity of aqueous solutions of both 137Cs and 134Cs is experimentally studied in presence of Au nanoparticles at laser intensity of order of 10^(12)W/cm2. It is found that laser irradiation reduces the gamma-activity of both nuclides. This decrease is not accompanied by excessful gamma radiation in the spectral range of gamma-activity of their spontaneous decay. Possible mechanisms are discussed of the influence of laser radiation on the activity of isotopes on the basis of laser field enhancement on the plasmon resonance of nanoparticles.