Abstract
The third-harmonic optical susceptibility, , of a silicate glass ceramic containing sodium niobate nanocrystals was measured for incident broadband light with central frequency ω corresponding to . Absolute values of and the dispersion of the refractive index from 600 to were measured using the spectrally resolved femtosecond Maker fringes technique. The experiments show that is 1 order of magnitude larger than silica, and it grows by when the volume fraction occupied by the nanocrystals increases up to 40%.
© 2011 Optical Society of America
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