Fabrication of a three-dimensional terahertz wave photonic crystal by assembly monosized spherical particles

Kazunori Seno, Kenta Takagi, Akira Kawasaki

研究成果: Article査読

抄録

A photonic crystal is an artificial crystal with a periodic array of dielectric material. Such a crystal possesses a band gap for an electromagnetic wave with wavelengths corresponding to a lattice period. In this study, the photonic crystal with the spherical lattice of hundreds of micrometer-order corresponding to wavelengths of terahertz wave was fabricated by a template method. Monosized spherical copper particles were self-assembled into f.c.c. structure and sintered to form necks between adjacent particles. The array was impregnated with the resin whose dielectric constant was controlled. Subsequently to cure the resin, only the copper particles lattice was etched away by chemical dissolve. The obtained resin-inversed crystals were confirmed to exhibit a photonic stopgap along 〈111〉 direction by a terahertz wave spectroscopy. The frequency and gap width of measured gaps well agreed with the calculated ones by the plane wave expansion method.

本文言語English
ページ(範囲)327-333
ページ数7
ジャーナルFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
52
5
DOI
出版ステータスPublished - 2005 5月

ASJC Scopus subject areas

  • 機械工学
  • 産業および生産工学
  • 金属および合金
  • 材料化学

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