Magneto-optical response of oblate and prolate spheroidal nanoparticles of silver

Document Type : Full length research Paper

Authors

1 Department of Physics, Faculty of Science, University of Zanjan, Zanjan, Iran

2 Department of Physics and Engineering Sciences, Imam Khomeini International University-Buein Zahra Higher Education Center of Technology, Buein Zahra, Iran

Abstract

Silver nanoparticles are important in technological and medical applications. The geometrical
tuning of the magneto-optical property of these nanoparticles are interesting. As a result of
localized surface plasmon resonance of these nanoparticle in the visible and near infrared, a
large circular dichroism is appeared close to surface plasmon resonance. In this paper, the
circular dichroism of oblate and prolate spheroidal nanoparticles in the presence of static
magnetic field is studied. A large redshift is observed in the circular dichroism spectrum of the
dimer of oblate spheroids. Also, the magnitude of circular dichroism in an asymmetric
configuration of the dimer is observed in comparison to the circular dichroism of the dimer of
same volume spherical nanoparticles, which shows the measurements are very easier.

Keywords

Main Subjects

References

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Journal of Research on Many-body Systems
Volume 11, Issue 2 - Serial Number 29
September 2021
Pages 110-120

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History

  • Receive Date: 14 November 2019
  • Revise Date: 28 April 2021
  • Accept Date: 04 August 2021

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