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Data on Optical Research Described by Researchers at Department of Physics

February 11, 2014

By a News Reporter-Staff News Editor at Journal of Technology -- Current study results on Optical Research have been published. According to news reporting from Tehran, Iran, by VerticalNews journalists, research stated, "In this work, the complex magnitude of the dielectric constant of a thin film of ZnO nano-particles has been obtained in the range of visible spectrum. Using this spectrum, the UV-visible absorptive spectrum of ZnO spherical nano-colloid is obtained using Mie theory."

The news correspondents obtained a quote from the research from the Department of Physics, "The absorption spectrum of ZnO nano-colloid has been related to the optical properties of the prepared thin film with a simulation model based on the Mie theory and the findings are corroborated by fitting with the experimental results. Based on this curve fitting, the volume fraction of nanoparticles in the nano-colloid is obtained and the diameter (and the Bohr radius) of the molecules contributing in a nanoparticle crystal structure has been obtained. In this paper, frequency dependence of the optical properties coefficients and also local field considerations are applied."

According to the news reporters, the research concluded: "Finally the precise magnitude of saturation intensity of ZnO nano-colloid is measured."

For more information on this research see: Modeling absorption spectrum and saturation intensity of ZnO nano-colloid. Optik, 2014;125(1):220-223. Optik can be contacted at: Elsevier Gmbh, Urban & Fischer Verlag, Office Jena, P O Box 100537, 07705 Jena, Germany. (Elsevier -; Optik -

Our news journalists report that additional information may be obtained by contacting E. Koushki, Kharazmi Univ, Dept. of Phys, Photon Lab, Tehran, Iran. Additional authors for this research include A. Farzaneh and M.H.M. Ara.

Keywords for this news article include: Iran, Asia, Tehran, Optical Research

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Source: Journal of Technology

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