Photophysics and photochemistry

MAY 01, 1977

Most effort so far has gone into laser isotope separation, for which several methods are available, but important applications for the future include some interesting topics in biochemistry.

DOI: 10.1063/1.3037543

V. S. Letokhov

Current progress with tunable lasers has made possible the selective excitation of practically any single quantum state of an atom or a molecule with excitation energy in the range 0.1 to 10 eV. Already we can obtain coherent radiation with sufficient intensity to excite a significant fraction of an atomic or molecular sample into chosen quantum states in the wavelength range 2000 Å to 20 microns. Systematic studies of the effect of selective laser radiation on matter have been under way since around 1969 and 1970, when substantial progress in the art of quantum electronics made the experiments possible.

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More about the authors

V. S. Letokhov, Institute of Spectroscopy, Academy of Sciences of the USSR, Moscow.