Field-controlled optical profile of a waveguide having a liquid-crystalline core
Field-controlled optical profile of a waveguide having a liquid-crystalline core
复制标题
具有液晶芯的波导的场控制光学轮廓
DOI：
10.1063/1.1508167
复制
发表时间：
2002
影响因子：
4
通讯作者：
F. Mantegazza
中科院分区：
文献类型：
--
作者：
M. Marangoni;R. Osellame;R. Ramponi;M. Buscaglia;T. Bellini;F. Mantegazza
通过外加电场，以一种直接和可控的方式动态地改变了混合结构中双折射液晶波导的光学特性。利用m线光谱测量了波导在不同电场强度下的各向异性折射率分布。实验结果是在一个简单的模型，考虑到液晶引导层的介电，光学和弹性性能的预测值非常好的协议。
The optical properties of a nematic liquid-crystal waveguide in a hybrid configuration have been dynamically reshaped in a straightforward and controlled way by applying an external electric field. The anisotropic refractive index profile of the waveguide has been determined for different electric-field strengths by means of m-lines spectroscopy. The experimental results are in very good agreement with the values predicted by a simple model that takes into account the dielectric, optical, and elastic properties of the liquid-crystal guiding layer.