研究目的
Investigating the design and functionality of a blue-phase liquid crystal (BPLC) lens array based on dual square ring-patterned electrodes for achieving polarisation-insensitive and tunable focal length.
研究成果
The proposed BPLC lens array based on dual square ring-patterned electrodes achieves polarisation-insensitive and tunable focal length with reduced operating voltage through the use of a high dielectric constant layer. The design offers a simple manufacturing process and large fabrication tolerance.
研究不足
The design requires high operating voltage and exhibits slight polarisation dependence due to horizontal field components near electrode edges. The focal length is relatively long due to the refractive index change of the BPLC being only one-third of the induced birefringence.
1：Experimental Design and Method Selection:
The design involves using dual square ring-patterned electrodes to generate gradient electric fields for a lens-like phase profile. A high dielectric constant layer is used to reduce operating voltage.
2：Sample Selection and Data Sources:
Simulation parameters include BPLC properties such as saturation birefringence and saturation electric field.
3：List of Experimental Equipment and Materials:
Commercial software Tech Wiz LCD 3D and MATLAB for simulation.
4：Experimental Procedures and Operational Workflow:
Simulation of electric field distribution and refractive index distribution under varying voltages.
5：Data Analysis Methods:
Analysis of refractive index distribution and phase profiles to evaluate lens performance.
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