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首页> 外文会议>Conference on Liquid Crystals; 20031013-20031017; Zakopane; PL >External control of a stop band position in a visible spectra of photonic crystal opal infiltrated with nematic LC
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External control of a stop band position in a visible spectra of photonic crystal opal infiltrated with nematic LC

机译：向列液晶渗透的光子晶体蛋白石可见光谱中阻带位置的外部控制

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Recently photonic crystals with a three - dimensional ordered structure with periodicity of the optical wavelength have attracted attention from both fundamental and practical points of view. The physics and applications of photonic crystals have been active topic of research now. The application of photonic crystals is to create tunable band gap materials especially in visible spectra region, where the gap could be controlled by an external parameter. We have studied transmission and linear dichroism spectra of synthetic opal, refractive index n = 1,342, infiltrated with nematic liquid crystal with averaged refractive index n= 1,596 or with water n = 1,30 and alcohol n = 1,28. We demonstrating that the position of the stop band in the visible spectra is shifted by changing of refractive index of the infiltrated material or by changing the filling factor or by variation of a incidence angle of light.
机译：最近，从基本和实际的观点来看，具有光波长周期性的三维有序结构的光子晶体都引起了人们的注意。光子晶体的物理及其应用已经成为当今研究的热点。光子晶体的应用是创建可调谐的带隙材料，尤其是在可见光谱区域，在该区域中，可以由外部参数控制间隙。我们研究了合成蛋白石的透射率和线性二色性光谱，折射率n = 1,342，已被平均折射率n = 1,596的向列液晶或水n = 1,30和醇n = 1,28浸润。我们证明，通过改变渗透材料的折射率或通过改变填充系数或通过改变光的入射角，可移动阻带在可见光谱中的位置。

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