Optics design and fabrication of 3D electrically switchable hexagonal photonic crystal |
| |
| Authors: | XH Sun XM Tao TJ Ye P Xue Y-S Szeto |
| |
| Institution: | (1) Nanotechnology Centre for Functional and Intelligent Textiles and Clothing, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P.R. China |
| |
| Abstract: | We demonstrate a holographic approach for easy and large-area fabrication of 3D photonic crystal (PhC) microstructures in
a polymer-dispersed liquid crystal (PDLC) by applying a single top-cut hexagonal prism and a seven-beam interference system.
Based on the expected photonic band gap of the photonic crystal, the prism parameters are designed and optimized. For example,
a prism with a height h=3.73 cm and a cross angle α=66° between the side face and the base is used to fabricate 3D PhC hexagonal
symmetrical structures in PDLCs. A good agreement is obtained between the theoretical calculation of the interference intensity
and morphological structures. On the other hand, far-field diffraction patterns and electrical switching characteristics are
also investigated.
PACS 42.15.Eq; 42.40.Eq |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
