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International Journal of Engineering Research
Year : 2014, Volume : 3, Issue : 10
First page : ( 584) Last page : ( 587)
Print ISSN : 2347-5013. Online ISSN : 2319-6890.

Study of the Relative Permittivity Response of Metal Nanoantenna at Optical Frequency

Mahbuba Mehnaj*, Chisty Nafiz Ahmed**

American International University-Bangladesh, Banani, Dhaka-1213

*Mehnaj_biva@yahoo.com

**chisty@aiub.edu

Online published on 8 November, 2017.

Abstract

In this paper the relative permittivity response of some nanometals such as Gold (Au), Silver(Ag), Copper(Cu), Aluminum (Al) and Nickel(Ni) are investigated at optical frequencies. The permittivity response is necessary because the optical response of the metal nanoantenna highly depends on the permittivity of the metals. The surface plasma response largely depends on the permittivity response at optical frequency. This relative permittivity response also playsan important role in the design process of a nanoantenna. This paper represents the permittivity response at the frequency range of 20–300 THz (the wavelength range of 3–15 μm)..

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Keywords

Nanoantenna, Relative permittivity, Surface Plasmon resonance, Optical frequency, Nanometal.

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