Radical-ion mechanism of optical limiting in fullerene solutions
M. V. GryaznovaResearch Institute for Laser Physics, St. Petersburg, Russian FederationВ. В. ДаниловResearch Institute for Laser Physics, St. Petersburg, Russian FederationO. V. KhapovaResearch Institute for Laser Physics, St. Petersburg, Russian FederationArtyom I KhrebtovResearch Institute for Laser Physics, St. Petersburg, Russian FederationT. A. ShakhverdovAll-Russian Scientific Centre 'S.I. Vavilov State Optical Institute', St Petersburg, Russian Federation
2004en
ABI
Abstract
The effect of photoinduced electron transfer with formation of a radical-ion pair on the characteristics of optical limiting of laser radiation in specially prepared multi-component fullerene solutions is studied. The limitation efficiency in such solutions increases due to absorption of laser radiation by molecules in a metastable state. The experimental results show that the spectral and time optical limiting ranges can be expanded due to formation of radical ions.
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