论文标题
染料掺杂的液晶等离子次曲面的全光切换
All-optical switching of a dye-doped liquid crystal plasmonic metasurface
论文作者
论文摘要
由等离激元分开环的谐振器和染料掺杂的液晶组成的可切换元表面。可以通过在可见光光谱范围内照亮染料掺杂的液体晶体来更改红外光谱范围内的元表面的传播。在液晶的杂交比对的情况下,效果尤其有效。 e。垂直于表面上的底物对表面和平行比对在计数器底物上的对齐。这种全光开关效应可以归因于早期作品中描述的行为是巨大的光学非线性或表面诱导的非线性光学效应。
A switchable metasurface composed of plasmonic split ring resonators and a dye-doped liquid crystal is developed. The transmission of the metasurface in the infrared spectral range can be changed by illuminating the dye-doped liquid crystal with light in the visible spectral range. The effect is particularly efficient in the case of hybrid alignment of the liquid crystal, i. e. alignment of the director perpendicular to the surface on one substrate and parallel alignment on the counter substrate. This all-optical switching effect can be attributed to the behavior described in earlier works as colossal optical nonlinearity or surface-induced nonlinear optical effect.