caa a22 4500 445305789 CHVBK 20180317142612.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10762-011-9776-7 doi (NATIONALLICENCE)springer-10.1007/s10762-011-9776-7 Characteristics of Gadolinium Oxide Nanoparticles as Contrast Agents for Terahertz Imaging [Elektronische Daten] [Dong-Kyu Lee, Hyeongmun Kim, Taekhoon Kim, Byungkyu Cho, Kwangyeol Lee, Joo-Hiuk Son] 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. Springer Science+Business Media, LLC, 2011 Terahertz time-domain spectroscopy nationallicence Terahertz imaging nationallicence Gadolinium oxide nationallicence Nanoparticle nationallicence Lee Dong-Kyu Laboratory for Terahertz Biophotonics, Department of Physics, University of Seoul, 130-743, Seoul, Korea aut Kim Hyeongmun Laboratory for Terahertz Biophotonics, Department of Physics, University of Seoul, 130-743, Seoul, Korea aut Kim Taekhoon Nanochemistry Laboratory, Department of Chemistry, Korea University, 136-713, Seoul, Korea aut Cho Byungkyu Nanochemistry Laboratory, Department of Chemistry, Korea University, 136-713, Seoul, Korea aut Lee Kwangyeol Nanochemistry Laboratory, Department of Chemistry, Korea University, 136-713, Seoul, Korea aut Son Joo-Hiuk Laboratory for Terahertz Biophotonics, Department of Physics, University of Seoul, 130-743, Seoul, Korea aut Journal of Infrared, Millimeter, and Terahertz Waves Springer US; http://www.springer-ny.com 32/4(2011-04-01), 506-512 1866-6892 32:4<506 2011 32 10762 https://doi.org/10.1007/s10762-011-9776-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10762-011-9776-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lee Dong-Kyu Laboratory for Terahertz Biophotonics, Department of Physics, University of Seoul, 130-743, Seoul, Korea aut NATIONALLICENCE 700 1- Kim Hyeongmun Laboratory for Terahertz Biophotonics, Department of Physics, University of Seoul, 130-743, Seoul, Korea aut NATIONALLICENCE 700 1- Kim Taekhoon Nanochemistry Laboratory, Department of Chemistry, Korea University, 136-713, Seoul, Korea aut NATIONALLICENCE 700 1- Cho Byungkyu Nanochemistry Laboratory, Department of Chemistry, Korea University, 136-713, Seoul, Korea aut NATIONALLICENCE 700 1- Lee Kwangyeol Nanochemistry Laboratory, Department of Chemistry, Korea University, 136-713, Seoul, Korea aut NATIONALLICENCE 700 1- Son Joo-Hiuk Laboratory for Terahertz Biophotonics, Department of Physics, University of Seoul, 130-743, Seoul, Korea aut NATIONALLICENCE 773 0- Journal of Infrared, Millimeter, and Terahertz Waves Springer US; http://www.springer-ny.com 32/4(2011-04-01), 506-512 1866-6892 32:4<506 2011 32 10762 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer