Fabrication of artificial crystal architectures by micro-manipulation of spherical particles

Kenta Takagi, Akira Kawasaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Materials with three-dimensional periodic structures have the potential to produce photonic effects such as photonic crystals. We therefore developed a fabrication technique for such structured materials through assembly of monosized spherical micro-particles. First, a three-dimensional particle array system was designed and manufactured. In this system, a robotic micro-manipulator accurately positions spherical particles onto the lattice points, and subsequently, fiber lasers micro-weld contact points between neighboring particles. One-dimensional arrays were constructed using monosized tin particles with the diameter of 400 um. Moreover, on the basis of optimized laser conditions, we successfully constructed three-dimensional crystals such as those of diamond structures. The diamond structure, in particular, is expected to evolve towards a practical photonic crystal device, since it possesses the largest photonic band gap among all the crystal structures.

Original languageEnglish
Title of host publicationMultiscale and Functionally Graded Materials - Proceedings of the International Conference, FGM IX
Pages883-888
Number of pages6
DOIs
Publication statusPublished - 2008 Mar 13
Event9th International Conference on Multiscale and Functionally Graded Materials, FGM IX - Oahu Island, HI, United States
Duration: 2006 Oct 152006 Oct 18

Publication series

NameAIP Conference Proceedings
Volume973
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other9th International Conference on Multiscale and Functionally Graded Materials, FGM IX
CountryUnited States
CityOahu Island, HI
Period06/10/1506/10/18

Keywords

  • Laser micro-welding
  • Particle array
  • Three-dimensionally periodic structures

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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