Vol. 18, issue 04, article # 6

Svetlichnyi V.A. Two-photon absorption cross section of DCM derivatives in solutions and in PMMA . // Atmospheric and oceanic optics. 2005. V. 18. No. 04. P. 290-293.
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The two-quantum standard method is applied to determine the efficiency of two-photon pumped fluorescence (TPPF) and the two-photon absorption (TPA) cross sections of high-efficiency red laser dyes, viz., dicyanomethylene-pyran derivatives in solutions and polymeric matrices. The highest TPA cross section for a Nd-YAG laser radiation (1064 nm) is observed in DCM-684 ethylacetate solution - 15.7 GM. The influence of the structure pyran derivatives and solvents on the change of TPA cross section and the TPPF efficiency is discussed.