13 December 2012 Terahertz-to-infrared converter based on metal nanoparticles: potentialities of applications
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Abstract
In a new type of terahertz (THz)-to-infrared converter for the visualization of THz radiation sources, nanoparticles are embedded in a THz-transparent matrix material. The nanoparticles are made of a metal or an alloy having a partially filled peak of the electron density of states at the Fermi energy. The converter is designed to operate with the THz objective forming a source's image on the matrix, wherein the irradiated nanoparticles convert THz energy to thermal energy, whose spatial distribution is captured by an infrared camera. Nickel nanoparticles are very appropriate for high-frequency THz radiation and can find application in real-time passive imaging of biomedical objects at room temperature. Nanoparticles of compounds with heavy fermions are suitable for low-frequency THz radiation, which could be used to image concealed objects carried by a human being.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE)
Kamil A. Moldosanov, Kamil A. Moldosanov, Valery M. Lelevkin, Valery M. Lelevkin, Peter V. Kozlov, Peter V. Kozlov, Andrey K. Kaveev, Andrey K. Kaveev, } "Terahertz-to-infrared converter based on metal nanoparticles: potentialities of applications," Journal of Nanophotonics 6(1), 061716 (13 December 2012). https://doi.org/10.1117/1.JNP.6.061716 . Submission:
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