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2D and 3D electrically switchable hexagonal photonic crystal in the ultraviolet range

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Abstract

Two holographic lithography systems are demonstrated for easy and large-area fabrication of 2D and 3D photonic crystal (PhC) microstructures in a polymer dispersed liquid crystal (PDLC) by applying a single top-cut hexagon prism. A six-beam system has been used to produce 2D hexagonal PhCs. By adding an additional mirror, a twelve-beam system is demonstrated to fabricate 3D PhCs with ultraviolet (UV) band-gap along the z direction. A good agreement is obtained for measured PhCs structure and theoretical results. Far-field diffraction patterns and electrical switching characteristics of the 2D and 3D PhC HPDLC films have been investigated.

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Authors and Affiliations

  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

    X. Sun, X. Tao, T. Ye, P. Xue & Y.-S. Szeto

Authors
  1. X. Sun
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  2. X. Tao
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  3. T. Ye
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  4. P. Xue
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  5. Y.-S. Szeto
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Correspondence to X. Sun.

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PACS

42.15.Eq; 42.40.Eq

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Sun, X., Tao, X., Ye, T. et al. 2D and 3D electrically switchable hexagonal photonic crystal in the ultraviolet range. Appl. Phys. B 87, 267–271 (2007). https://doi.org/10.1007/s00340-006-2547-9

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  • DOI: https://doi.org/10.1007/s00340-006-2547-9

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