Fabrication of Carbon nanotube-poly-methylmethacrylate composites for nonlinear photonic devices

Amos Martinez, Sho Uchida, Yong Won Song, Takaaki Ishigure, Shinji Yamashita

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Carbon nanotubes (CNT) are an attractive material for photonic applications due to their nonlinear optical properties, such as the nonlinear saturable absorption and high third order nonlinearity. However their utilization has been hindered by the lack of flexibility on the device design which rises from the current methods of Carbon nanotube deposition within the optical system. A suitable approach to solve this problem is to embed the CNTs in an optical material from which complex devices such as optical waveguides or optical fibers can be fabricated. Here, we propose a novel method to fabricate Carbon nanotube-doped poly-methyl-methacrylate (PMMA) composites in which the Carbon nanotubes are dispersed in the methyl-methacrylate (MMA) monomer solution prior to and during the polarization process. This method allows the bundle separation and dispersion of the CNT in a liquid state without the need for solvents, hence simplifying the method and facilitating the fabrication of volume CNT-PMMA. Volume fabrication makes this technique suitable for the fabrication of CNT-doped polymer fibers. In this paper, we also analyzed the merits of adding dopants such as diphenyl sulfide (DPS) and benzyl benzoate (BEN) to the CNT-PMMA composite and we observed that DPS plays the role of CNT dispersion stabilizer that can improve the device performance. The CNT-PMMA composite was employed to implement passive mode-locked laser.

Original languageEnglish
Pages (from-to)11337-11343
Number of pages7
JournalOptics Express
Volume16
Issue number15
DOIs
Publication statusPublished - 2008 Jul 21

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carbon nanotubes
photonics
fabrication
composite materials
polymethyl methacrylate
sulfides
fibers
optical materials
optical waveguides
bundles
flexibility
monomers
optical fibers
nonlinearity
optical properties
polymers
polarization
liquids
lasers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Fabrication of Carbon nanotube-poly-methylmethacrylate composites for nonlinear photonic devices. / Martinez, Amos; Uchida, Sho; Song, Yong Won; Ishigure, Takaaki; Yamashita, Shinji.

In: Optics Express, Vol. 16, No. 15, 21.07.2008, p. 11337-11343.

Research output: Contribution to journalArticle

Martinez, Amos ; Uchida, Sho ; Song, Yong Won ; Ishigure, Takaaki ; Yamashita, Shinji. / Fabrication of Carbon nanotube-poly-methylmethacrylate composites for nonlinear photonic devices. In: Optics Express. 2008 ; Vol. 16, No. 15. pp. 11337-11343.
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