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首页> 外文期刊>Optical engineering >Computational split-field finite-difference time-domain evaluation of simplified tilt-angle models for parallel-aligned liquid-crystal devices
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Computational split-field finite-difference time-domain evaluation of simplified tilt-angle models for parallel-aligned liquid-crystal devices

机译：平行取向液晶器件的简化倾斜角模型的计算裂域有限差分时域评估

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摘要

Simplified analytical models with predictive capability enable simpler and faster optimization of the performance in applications of complex photonic devices. We recently demonstrated the most simplified analytical model still showing predictive capability for parallel-aligned liquid crystal on silicon (PA-LCoS) devices, which provides the voltage-dependent retardance for a very wide range of incidence angles and any wavelength in the visible. We further show that the proposed model is not only phenomenological but also physically meaningful, since two of its parameters provide the correct values for important internal properties of these devices related to the birefringence, cell gap, and director profile. Therefore, the proposed model can be used as a means to inspect internal physical properties of the cell. As an innovation, we also show the applicability of the split-field finite-difference time-domain (SF-FDTD) technique for phase-shift and retardance evaluation of PA-LCoS devices under oblique incidence. As a simplified model for PA-LCoS devices, we also consider the exact description of homogeneous birefringent slabs. However, we show that, despite its higher degree of simplification, the proposed model is more robust, providing unambiguous and physically meaningful solutions when fitting its parameters.
机译：具有预测能力的简化分析模型可简化和快速优化复杂光子器件应用中的性能。我们最近展示了最简化的分析模型，该模型仍然显示出硅上平行排列的液晶（PA-LCoS）器件的预测能力，该模型为很大范围的入射角和可见光中的任何波长提供了电压依赖性延迟。我们进一步表明，提出的模型不仅是现象学的，而且在物理上也有意义，因为它的两个参数为这些设备的重要内部属性提供了与双折射，细胞间隙和指向矢轮廓有关的正确值。因此，提出的模型可以用作检查电池内部物理特性的手段。作为一项创新，我们还展示了裂场有限差分时域（SF-FDTD）技术在倾斜入射下对PA-LCoS设备的相移和延迟评估的适用性。作为PA-LCoS器件的简化模型，我们还考虑了均匀双折射平板的确切描述。然而，我们表明，尽管简化程度更高，但是所提出的模型更加健壮，在拟合其参数时可提供明确且在物理上有意义的解决方案。

著录项

  • 来源
    《Optical engineering》 |2018年第3期|037110.1-037110.11|共11页
  • 作者

    Andres Marquez; Jorge Frances; Francisco J. Martinez; Sergi Gallego; Mariela L. Alvarez; Eva M. Calzado; Inmaculada Pascual; Augusto Belendez;

  • 作者单位

    Universidad de Alicante, Dept. de Fi'sica, Ing. de Sistemas y T. Serial, Alicante, Spain,I.U. Fi'sica Aplicada a las Ciencias y las Tecnologias Universidad de Alicante, Alicante, Spain;

    Universidad de Alicante, Dept. de Fi'sica, Ing. de Sistemas y T. Serial, Alicante, Spain,I.U. Fi'sica Aplicada a las Ciencias y las Tecnologias Universidad de Alicante, Alicante, Spain;

    Universidad de Alicante, Dept. de Fi'sica, Ing. de Sistemas y T. Serial, Alicante, Spain,I.U. Fi'sica Aplicada a las Ciencias y las Tecnologias Universidad de Alicante, Alicante, Spain;

    Universidad de Alicante, Dept. de Fi'sica, Ing. de Sistemas y T. Serial, Alicante, Spain,I.U. Fi'sica Aplicada a las Ciencias y las Tecnologias Universidad de Alicante, Alicante, Spain;

    Universidad de Alicante, Dept. de Fi'sica, Ing. de Sistemas y T. Serial, Alicante, Spain,I.U. Fi'sica Aplicada a las Ciencias y las Tecnologias Universidad de Alicante, Alicante, Spain;

    Universidad de Alicante, Dept. de Fi'sica, Ing. de Sistemas y T. Serial, Alicante, Spain,I.U. Fi'sica Aplicada a las Ciencias y las Tecnologias Universidad de Alicante, Alicante, Spain;

    I.U. Fi'sica Aplicada a las Ciencias y las Tecnologias Universidad de Alicante, Alicante, Spain,Universidad de Alicante, Farmacologi'a y Anatomia, Dept. de Optica, Alicante, Spain;

    Universidad de Alicante, Dept. de Fi'sica, Ing. de Sistemas y T. Serial, Alicante, Spain,I.U. Fi'sica Aplicada a las Ciencias y las Tecnologias Universidad de Alicante, Alicante, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    liquid-crystal devices; parallel aligned; birefringence; spatial light modulators; displays; finite-difference time-domain; split-field;

    机译：液晶装置;平行排列双折射空间光调制器;显示;时域有限差分分裂场;

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