Effects of liquid crystal infiltration on metallic photonic crystals

Chul-Sik Kee; Shou-Zhe Li; Han-jo Lim

doi:10.1117/12.447093

30 October 2001 Effects of liquid crystal infiltration on metallic photonic crystals

Chul-Sik Kee, Shou-Zhe Li, Han-jo Lim

Proceedings Volume 4598, Photonics Technology in the 21st Century; (2001) https://doi.org/10.1117/12.447093
Event: International Symposium on Photonics and Applications, 2001, Singapore, Singapore

Abstract

The effects of liquid crystal (LC) infiltration on the photonic band gaps (PBGs) of two-dimensional (2D) metallic photonic crystals (PCs)are investigated by theoretical calculation. Contrary to the LC-infiltrated dielectric photonic crystals, the infiltration of LCs into 2D metallic PCs is found to enlarge PBGs and create another PBGs in a frequency range higher than that of the original PBG. The change of refractive index due to the phase transition of LCs affects both edges of PBGs so that the positions of PBGs show rather large temperature dependence near the phase transition temperature. Thus metallic PCs infiltrated with LCs can overcome the drawbacks of LC infiltration in dielectric PCs, i.e., the band gap narrowing and weak tunabilty of band gap. The usefulness of LC infiltration in the implementation of 2D or 3D tunable metallic photonic crystals is also discussed.

Citation Download Citation

Chul-Sik Kee, Shou-Zhe Li, and Han-jo Lim "Effects of liquid crystal infiltration on metallic photonic crystals", Proc. SPIE 4598, Photonics Technology in the 21st Century, (30 October 2001); https://doi.org/10.1117/12.447093

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