Characteristics of Gadolinium Oxide Nanoparticles as Contrast Agents for Terahertz Imaging

  • Dong-Kyu Lee
  • Hyeongmun Kim
  • Taekhoon Kim
  • Byungkyu Cho
  • Kwangyeol Lee
  • Joo-Hiuk Son
Article

Abstract

For the application of gadolinium oxide (Gd2O3) nanoparticles as terahertz contrast agents, their optical properties in a solvent were studied using terahertz time-domain spectroscopy. The power absorption and refractive index of the samples were measured with various concentrations of nanoparticles. The power absorption was extremely large, as much as three orders of magnitude higher than that of water, so that a few ppms of Gd2O3 nanoparticles were distinguished in terms of their power absorption capacity. The results show that the interaction between the terahertz electromagnetic waves and the Gd2O3 nanoparticles is strong enough to allow their exploitation as contrast agents for terahertz medical imaging.

Keywords

Terahertz time-domain spectroscopy Terahertz imaging Gadolinium oxide Nanoparticle 

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Dong-Kyu Lee
    • 1
  • Hyeongmun Kim
    • 1
  • Taekhoon Kim
    • 2
  • Byungkyu Cho
    • 2
  • Kwangyeol Lee
    • 2
  • Joo-Hiuk Son
    • 1
  1. 1.Laboratory for Terahertz Biophotonics, Department of PhysicsUniversity of SeoulSeoulKorea
  2. 2.Nanochemistry Laboratory, Department of ChemistryKorea UniversitySeoulKorea

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