Ultrafast induced excited state absorption in organically doped xerogels
Abstract
Vanadyl-phthalocyanines have been trapped in different silica-based xerogel matrices. Nonlinear `reverse saturable absorption' behavior has been observed for femtosecond and nanosecond pulse excitation at 620 nm. Nanosecond experiments could be fitted using a classical 3-energy-level model. However, the time scales are such that the behavior observed with femtosecond pulses cannot be correctly interpreted with the same model.
Domains
Optics [physics.optics]| Origin | Files produced by the author(s) |
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