Measurements of nonlinear refractive index in scattering media
Source: Opt. Express 18, 12727 (2010); doi:10.1364/OE.18.012727
Issue Date: August 2010
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We have recently developed a spectral re-shaping technique to simultaneously measure nonlinear refractive index and nonlinear absorption. In this technique, the information about the nonlinearities is encoded in the frequency domain, rather than in the spatial domain as in the conventional Z-scan method. Here we show that frequency encoding is much more robust with respect to scattering. We compare spectral re-shaping and Z-scan measurements in a highly scattering environment and show that reliable spectral re-shaping measurements can be performed even in a regime that precludes standard Z-scans.
©2010 Optical Society of America
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| Permalink: | http://dx.doi.org/10.1364/OE.18.012727 |
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