Whispering-gallery-modes (WGM) spherical microresonators may reveal new perspective properties being coated with non-linear thin layers. We present the examples of all-optical switching of WGM in silica microspheres covered with a polyfluorene derivative showing ultrafast Kerr nonlinearity, or a relatively slow thermal nonlinearity. Another set of measurements performed with an inert polymer, an acrylate derivative, is discussed as well
Kerr versus thermal non-linear effects studied by hybrid whispering gallery mode resonators
Nunzi Conti G;Barucci A;Berneschi S;Soria;
2012
Abstract
Whispering-gallery-modes (WGM) spherical microresonators may reveal new perspective properties being coated with non-linear thin layers. We present the examples of all-optical switching of WGM in silica microspheres covered with a polyfluorene derivative showing ultrafast Kerr nonlinearity, or a relatively slow thermal nonlinearity. Another set of measurements performed with an inert polymer, an acrylate derivative, is discussed as wellFile in questo prodotto:
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