Process for the selective optical excitation of an isotopic species of a substance, device for carrying out the process and its use in isotopic separation.

摘要

The substance is contained in a mixture of other isotope species. A Raman-active state whose energy Ev relative to the ground state depends on the mass of the molecule is chosen from the vibrational molecular excitation states which the said substance may have; this energy Ev is determined for the isotope species to be excited; the mixture of isotope species is exposed to the radiations of two monochromatic and colinear light beams of frequencies F1 and F2 respectively, the said frequencies satisfying the relationship h(F1-F2) = Ev, where h is Planck's constant. Application to isotope separation. <IMAGE>