Ultrafast optical switching by using nanocrystals of a halogen-bridged nickel-chain compound dispersed in an optical polymer

Shoichi Tao, Tatsuzo Miyagoe, Atsushi Maeda, Hiroyuki Matsuzaki, Hideki Ohtsu, Miki Hasegawa, Shinya Takaishi, Masahiro Yamashita, Hiroshi Okamoto

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)

Abstract

A method for the fabrication of high-quality thin films is presented, in which nanocrystals of a Ni compound with alkyl chains are dispersed in an optical polymer, PMMA (poly(methyl methacrylate)). Terahertz repetition of optical switching by two-photon absorption (TPA) processes is demonstrated in these films. The approach represented a novel strategy for the application of transition-metal compounds to optical switching device. One way of fabricating an optical film is to disperse nanocrystals in optically transparent polymers. This method has been employed for the fabrication of good optical films of single-wall carbon nanotubes, using gelatin and polyvinyl alcohol as matrices. The fabrication method for high-quality thin films consisting of nanocrystals can also be applied to other transition-metal compounds, possibly with the introduction of long alkyl chains into the ligand, which will introduce new possibilities for the application of these compounds to future optical devices.

Original languageEnglish
Pages (from-to)2707-2710
Number of pages4
JournalAdvanced Materials
Volume19
Issue number18
DOIs
Publication statusPublished - 2007 Sep 17

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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