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Articles

Impact of material characteristics on the general optical behavior of perforated surface plasmon system

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Pages 1372-1385 | Received 02 Jul 2019, Accepted 07 Aug 2019, Published online: 20 Aug 2019
 

ABSTRACT

In this paper, we studied the impact of material characteristics on the optical response of a perforated surface plasmon system as a general trend by employing dielectric function of metallic film. To this end, different artificial materials were modeled based on a single interband transition peak in the form of a Lorentzian function in the imaginary part of dielectric function ε2 as well as a Drude term for free electron feature. The impact of place, strength and broadening of interband peak of metallic film were evaluated on the optical transmission spectrum. Our results revealed that these peaks affect the excited modes in the form of a decrease in the intensity of transmitted beam at corresponding frequencies. This decrease was proportional to the strength and width of the peak, and interpreted as an optical dissipation coming from material specifics. The present study provides a better insight into how the optical transmission response of such systems can be tuned for a particular goal or application using material characteristics.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Notes on contributors

Alireza Shabani

Alireza Shabani received the PhD degree in solid state physics from the Ferdowsi University of Mashhad, Iran, in 2018 and currently is a researcher at FUM. His research interests include plasmonics and metamaterials by using computational methods such as DFT and FDTD.

Neda Rahmani

Neda Rahmani received the MSc degree in solid state physics from the Ferdowsi University of Mashhad, Iran, in 2012 and currently is a PhD candidate in solid state physics at Shahrood University of Technology. Her research interests include multiferroic materials using first principle calculations.

Mehdi Khazaei Nezhad

Mehdi Khazaei Nezhad received his MSc and PhD degrees in physics from Sharif University of Technology on 2012 and 2014, respectively. Then he joint as a faculty member to physics department in Ferdowsi University of Mashhad, Iran from January 2015.

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