Photonic crystal fiber with a dual-frequency addressable liquid crystal: behavior in the visible wavelength range.
Photonic crystal fiber with a dual-frequency addressable liquid crystal: behavior in the visible wavelength range.
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DOI：
10.1364/oe.16.019375
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发表时间：
2008-11
期刊：
影响因子：
3.8
通讯作者：
Alexander Lorenz;H. Kitzerow;A. Schwuchow;J. Kobelke;H. Bartelt
中科院分区：
文献类型：
--
作者：
Alexander Lorenz;H. Kitzerow;A. Schwuchow;J. Kobelke;H. Bartelt
研究了填充双频可寻址向列相液晶混合物的微结构晶体光纤在可见光区的光波导特性。这种光纤显示出一个实心，周围只有4个圆柱孔的环。通过锚定剂控制液晶取向允许相对较低的衰减。在石英玻璃和液晶的界面上，不同锚定条件的样品表现出不同的传输特性和开关行为。观察到了偏振相关和独立的光纤开关。由于双频寻址方案，平面锚定可以主动切换到具有增强和减少传输的两种状态。即使是不完美的光纤也会显示出合理的传输和各种有趣的效果。
Wave-guiding in the visible spectral range is investigated for a micro-structured crystal fiber filled with a dual-frequency addressable nematic liquid crystal mixture. The fiber exhibits a solid core surrounded by just 4 rings of cylindrical holes. Control of the liquid crystal alignment by anchoring agents permits relatively low attenuation. Samples with different anchoring conditions at the interface of the silica glass and the liquid crystal show different transmission properties and switching behavior. Polarization dependent and independent fiber optic switching is observed. Due to a dualfrequency addressing scheme, active switching to both states with enhanced and reduced transmission becomes possible for planar anchoring. Even a non-perfect fiber shows reasonable transmission and a variety of interesting effects.