Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 18, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3125244
Keywords
high-speed optical techniques; nanostructured materials; nonlinear optical susceptibility; silver; time-domain analysis
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We show that the imaginary parts of higher-order optical nonlinearities and their decay times can be determined by a time-intensity domain analysis of the conventional transient absorption data. Using this method we have measured the values and decay times of third, fifth and seventh-order nonlinear susceptibilities of silver nanoplatelets in water. The origin of these higher-order nonlinearities is explained using a two-temperature model.
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