14 December 2016 Excitons and low-threshold optical nonlinearity of dielectric nanosystems
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Proceedings Volume 10176, Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics; 1017602 (2016) https://doi.org/10.1117/12.2268235
Event: Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics, 2016, Khabarovsk, Russia
Abstract
The recently discovered ultralow-threshold nonlinear refraction of low-intensity laser radiation in dielectric nanostructures has an atypical dependence on radiation intensity. We first carry out quantitative measurements of the dependence of the nonlinear response of liquid dielectric nanostructures on the low-intensity radiation and then devise a theoretical explanation. The theory suggests that the nonlinearity is of photoinduced nature instead of a thermal one and depends directly on the nanoparticles electronic structure and the relationship between permittivities of dielectric matrix and nanoparticles.
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V. P. Dzyuba, A. V. Amosov, Yu. N. Kulchin, "Excitons and low-threshold optical nonlinearity of dielectric nanosystems", Proc. SPIE 10176, Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics, 1017602 (14 December 2016); doi: 10.1117/12.2268235; https://doi.org/10.1117/12.2268235
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