ATOMIC AND MOLECULAR PHYSICS |
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Optical Response of CeB6 Nanoparticles with Different Sizes and Shapes from Discrete-Dipole Approximation |
CHAO Luo-Meng1,2, BAO Li-Hong2**, O. Tegus2** |
1Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016 2Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Inner Mongolia Normal University, Hohhot 010022
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Cite this article: |
CHAO Luo-Meng, BAO Li-Hong, O. Tegus 2015 Chin. Phys. Lett. 32 043301 |
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Abstract The discrete dipole approximation is used to investigate the optical response of CeB6 nanoparticles with different sizes and different shapes. The extinction valley in the visible light range becomes narrower and the extinction peak at the near infrared region (NIR) is red-shifted with the increasing particle size. In addition, the extinction peak value of the spherical particle decreases more rapidly than that of cubic-shaped particle with an increase in the particle size, and the cubic-shaped particles exhibit better performance on blocking NIR radiation than spherical-shaped particles. The calculation results coincide well with the reported experimental results.
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Received: 03 December 2014
Published: 30 April 2015
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PACS: |
33.20.Fb
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(Raman and Rayleigh spectra (including optical scattering) ?)
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61.82.Rx
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(Nanocrystalline materials)
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71.20.Eh
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(Rare earth metals and alloys)
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