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Proceedings Paper

Broad flattop transparent photonic band in truncated photonic crystals composed of the symmetric unit cell
Author(s): Guiqiang Du; Lixin Li; Haitao Jiang; Yunhui Li; Liwei Zhang; Junfang Zhao; Tianlin Yang; Zhongchen Wu; Shumei Song; Yanhui Li; Maoshui Lv
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Paper 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.

Paper Details

Date Published: 18 February 2011
PDF: 4 pages
Proc. SPIE 7995, Seventh International Conference on Thin Film Physics and Applications, 79950B (18 February 2011); doi: 10.1117/12.888196
Show Author Affiliations
Guiqiang Du, Shandong Univ. at Weihai (China)
Lixin Li, Henan Polytechnic Univ. (China)
Haitao Jiang, Tongji Univ. (China)
Yunhui Li, Tongji Univ. (China)
Liwei Zhang, Henan Polytechnic Univ. (China)
Junfang Zhao, Henan Polytechnic Univ. (China)
Tianlin Yang, Shandong Univ. at Weihai (China)
Zhongchen Wu, Shandong Univ. at Weihai (China)
Shumei Song, Shandong Univ. at Weihai (China)
Yanhui Li, Shandong Univ. at Weihai (China)
Maoshui Lv, Shandong Univ. at Weihai (China)

Published in SPIE Proceedings Vol. 7995:
Seventh International Conference on Thin Film Physics and Applications
Junhao Chu; Zhanshan Wang, Editor(s)

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