Abstract

Resonant selective processes running in the field of laser radiation in heterogeneous systems containing the gaseous phases of substances are well studied; see, for example, Ref. 1. As a rule the selectivity of excitation of different components of a system is attained by radiation action upon gas molecules being at the surface of a solid. A search for ways of monitoring selective processes in liquid media encounters new problems, primarily due to high liquid density. On the other hand, it is the high liquid density, as against gas, that stimulates the development of new high technologies of laser-aided selection and purification of substances.

© 1992 Optical Society of America