Optics design and fabrication of 3D electrically switchable hexagonal photonic crystal

X. H. Sun; Xiaoming Tao; T. J. Ye; P. Xue; Y. S. Szeto

doi:10.1007/s00340-006-2544-z

Optics design and fabrication of 3D electrically switchable hexagonal photonic crystal

X. H. Sun, Xiaoming Tao, T. J. Ye, P. Xue, Y. S. Szeto

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

28 Citations (Scopus)

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.

Original language	English
Pages (from-to)	65-69
Number of pages	5
Journal	Applied Physics B: Lasers and Optics
Volume	87
Issue number	1
DOIs	https://doi.org/10.1007/s00340-006-2544-z
Publication status	Published - 1 Mar 2007

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)
General Physics and Astronomy

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AU - Szeto, Y. S.

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AB - 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.

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Optics design and fabrication of 3D electrically switchable hexagonal photonic crystal

Abstract

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