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Summary form only given. Gallium-silica interfaces have emerged as a new type of structure that combines a strong nonlinearity with picosecond switching-on time. Here we report that the optical nonlinearity of gallium films deposited on fused silica by ultrafast pulsed laser ablation is very broadband, spanning from 480 nm to 810 nm.
Date of Conference: 10-15 Sept. 2000