Reverse saturable absorption and saturable absorption in doped xerogels
Marc Brunel, Michael Canva, Alain Brun +2 more
Organic molecules often present, at given wavelengths, reverse saturable absorption behavior:1–5 at low fluences, the absorption is weak; at high fluences, some molecules are excited to the first excited state whose absorption is greater. Aluminophthalocyanines encaged in solid inorganic xerogel silica matrices obtained from tetraethoxysilane precursors present this behavior.5 Similar results are also obtained with mixed organic/inorganic doped matrices.
Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)•Jan 1, 1994•0 citations