Achieving geometrical enhancement of fields in chiral nanoplasmonics using fractional calculus

Abstract

In this paper, an analytical approach has been developed for electromagnetic field enhancement in fractal nanostructure under the quasi-static limit. A metallic fractal embedded in an unbounded, isotropic, and lossless chiral medium has been treated under this approach. In addition, the field enhancement is also noted by imposing surface plasmon resonance condition. To achieve the desired objective, Maxwell divergence equations are considered and written in an appropriate form by mean of fractional calculus.

Keywords:

• Surface plasmons
• field enhancement
• fractional calculus
• fractal

Disclosure statement

No potential conflict of interest was reported by the author(s).