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Volume 15, Issue 2 (Summer-Fall 2021)
IJOP 2021, 15(2): 133-140 |
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Ranjbar S, Azarian A. Analyzing the Optical Properties and Peak Behavior Due to Plasmon Resonance of Silver Cubic-Shape Nanostructures by Means of Discrete Dipole Approximation. IJOP 2021; 15 (2) :133-140
URL: http://ijop.ir/article-1-462-en.html
URL: http://ijop.ir/article-1-462-en.html
1- Physics Department, Qom University, Qom, Iran.
Abstract: (10006 Views)
In this article, the optical properties of silver cubic-shape nanostructures (SCNs) were analyzed by employing the discrete dipole approximation (DDA) in aqueous media. The absorption, dispersion and extinction cross-sections of these nanostructures were calculated based on the wavelength change of the incident light in the visible and near infrared region. Moreover, the height change, wavelength and full width at half maximum (FWHM) of extinction cross-section peaks (from plasmon resonances) based on the size of nanoparticles and the environment dielectric constant were surveyed. The results showed that only two peak modes, named dipole peak and quadrupole peak, exist in this spectrum, such as spherical particles.
Keywords: Silver cubic-shape nanostructures, Discrete dipole approximation, Plasmon, Absorption, Dispersion and extinction cross-sections.
Type of Study: Research |
Subject:
Special
Received: 2021/06/27 | Revised: 2021/10/23 | Accepted: 2022/01/2 | Published: 2022/06/22
Received: 2021/06/27 | Revised: 2021/10/23 | Accepted: 2022/01/2 | Published: 2022/06/22
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