FABRICATION OF THREE-DIMENSIONAL PHOTONIC CRYSTALS WITH DIAMOND STRUCTURE BY STEREOLITHOGRAPHY

被引:0
|
作者
Kirihara, Soshu [1 ]
Takeda, Mitsuo Wada
Sakoda, Kazuaki
Miyamoto, Yoshinari [1 ]
机构
[1] Osaka Univ, Joining & Welding Res Inst, Osaka 5670047, Japan
关键词
Photonic Crystal; Bandgap; Graded Structure; Diamond structure; Stereolithography; Microwave;
D O I
暂无
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Three-dimensional photonic crystals with periodic variations of dielectric constant were fabricated by using a rapid prototyping method of stereolithography. Millimeter-order epoxy lattices with a diamond structure were designed to reflect electromagnetic waves by forming an photonic bandgap in a GHz range. Titania-based ceramic particles were dispersed into the lattice to control the dielectric constant. The diamond lattice structures formed the perfect bandgap reflecting electromagnetic waves for all directions. The diamond structures with stretched lattice spacing were successfully fabricated as well, resulting in the directional transmission of microwaves. A microwave antenna head composed of the normal and stretched diamond structure was fabricated in one step which achieved the unidirectional transmission.
引用
收藏
页码:249 / 254
页数:6
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