Broad flattop transparent photonic band in truncated photonic crystals composed of the symmetric unit cell

Guiqiang Du; Lixin Li; Haitao Jiang; Yunhui Li; Liwei Zhang; Junfang Zhao; Tianlin Yang; Zhongchen Wu; Shumei Song; Yanhui Li; Maoshui Lv

doi:10.1117/12.888196

18 February 2011 Broad flattop transparent photonic band in truncated photonic crystals composed of the symmetric unit cell

Guiqiang Du, Lixin Li, Haitao Jiang, Yunhui Li, Liwei Zhang, Junfang Zhao, Tianlin Yang, Zhongchen Wu, Shumei Song, Yanhui Li, Maoshui Lv

Author Affiliations +

Proceedings Volume 7995, Seventh International Conference on Thin Film Physics and Applications; 79950B (2011) https://doi.org/10.1117/12.888196
Event: Seventh International Conference on Thin Film Physics and Applications, 2010, Shanghai, China

Abstract

We theoretically show that a one-dimensional finite all-dielectric periodic structure composed of symmetric unit cells can possess a broad flattop transparent photonic band. In contrast to the conventional viewpoint that the thickness of the truncated photonic crystals affects the transmission within the pass band, the transparent photonic band is insensitive to the change of the periodic number since the equivalent refractive indices of our structures can be nearly equal to that of the background in a wide frequency range. With easy fabrication, this broad flattop transparent photonic band will play an important role in the broadband filtering.

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Guiqiang Du, Lixin Li, Haitao Jiang, Yunhui Li, Liwei Zhang, Junfang Zhao, Tianlin Yang, Zhongchen Wu, Shumei Song, Yanhui Li, and Maoshui Lv "Broad flattop transparent photonic band in truncated photonic crystals composed of the symmetric unit cell", Proc. SPIE 7995, Seventh International Conference on Thin Film Physics and Applications, 79950B (18 February 2011); https://doi.org/10.1117/12.888196

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