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Proceedings Paper

Design of isotropic photonic gaps by using a circular photonic crystal
Author(s): Noriaki Horiuchi; Yusaburo Segawa; Tatsuo Nozokido; Koji Mizuno; Hiroshi Miyazaki
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Paper Abstract

Optical characteristics of a circular photonic crystal (CPC) in the frequency range of 0 to 20 GHz were investigated. The sample was made by alumina rods of 2 mm in radius and 300 mm in length. The alumina rods were arrayed in the form of concentric circles with 6-fold symmetry. The transmission spectra were calculated at various radical distances. When the radical distance was 8 mm, a photonicgap was obtained around 12 GHz. The experimental results were in good agreement with the calculations. Although the lattice positions were shifted from the ones of the CPC, the same transmission spectrum was obtained in the phase-shifted CPC. Phase-shift is a useful means for eliminating translational symmetries that would often appear in the exterior part of a CPC composed of numerous concentric circles. Isotropic photonicgaps were obtained for both a CPC and the phase-shifted CPC.

Paper Details

Date Published: 9 July 2004
PDF: 7 pages
Proc. SPIE 5360, Photonic Crystal Materials and Devices II, (9 July 2004);
Show Author Affiliations
Noriaki Horiuchi, RIKEN-The Institute of Physical and Chemical Research (Japan)
Yusaburo Segawa, RIKEN-The Institute of Physical and Chemical Research (Japan)
Tatsuo Nozokido, Tohoku Univ. (Japan)
Koji Mizuno, Tohoku Univ. (Japan)
Hiroshi Miyazaki, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 5360:
Photonic Crystal Materials and Devices II
Ali Adibi; Axel Scherer; Shawn-Yu Lin, Editor(s)

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