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arXiv · 1812.06674

Quantification of nonlinear absorption in ternary As-Sb-Se chalcogenide glasses

P. Pradhan·Pritam Khan·J. R. Aswin·K. V. Adarsh·R. Naik·N. Das·A. K. Panda
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Abstract

In this article, we studied intensity dependent third order nonlinear optical response in ternary As40Sb7Se53 and As40Sb10Se50 chalcogenide glasses by employing nanosecond Z-scan technique. At low intensity, we observed saturable absorption in As40Sb7Se53 which makes a remarkable transition to reverse saturable absorption at higher intensities. On the other hand, when the Sb concentration increased in As40Sb10Se50, saturable absorption disappears and the sample exhibits only two-photon absorption. Experimental results further indicate that the strong two-photon absorption in our samples can be exploited to fabricate high performance solid state optical limiting devices for next generation all-optical network.

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P. Pradhan, Pritam Khan, J. R. Aswin, K. V. Adarsh, R. Naik, N. Das, A. K. Panda. 2018-12-17. Quantification of nonlinear absorption in ternary As-Sb-Se chalcogenide glasses. https://doi.org/10.1063/1.5063864

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