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ИСТИНА ЦЭМИ РАН |
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Laser selective spectroscopy has a particular significance and value for the Russian scientific community. The emergence of quasi-linear spectra of complex organic compounds in specially selected solvents at low cryogenic temperatures known as “Shpol’skii matrices” was first observed in 1952 by Prof. Eduard Shpol’skii’s group from the Department of Theoretical Physics of the Moscow State Pedagogical Institute. In 1972, a former student of Prof. Shpol’skii, Prof. Roman Personov, and his colleagues at the Institute for Spectroscopy of the USSR Academy of Sciences demonstrated successful site-selective laser excitation of narrow luminescence spectra in organic molecules. Two years later, in 1974, Personov’s group with their colleagues from the Institute of Physics in Tartu, Estonia (USSR) conducted the fundamental experiments on the persistent spectral hole burning. That work had formed the basis of laser site-selective spectroscopy of molecules which has now evolved in single-molecule spectroscopy.