The experimental observation of photorefractive self focusing in Sn(2)P(2)S(6) : Te bulk crystals at 1.06 mum wavelength is presented. Steady state self focusing is reached as fast as 15 ms for an input peak intensity equal to 160 W/cm(2). Self focusing is maximum for input peak intensities around 15 W/cm(2) and is decreasing for intensities below and above this value.
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| http://dx.doi.org/10.1364/oe.15.012777 | DOI Listing |
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