Effect of volume fractional change of nanoparticles on surface plasmon polariton

¹ Department of Physics, University of Malakand - Chakdara Dir(L), Pakistan
² School of Electronic and Optical Engineering, Nanjing University of Science and Technology Nanjing, 210094, PRC
³ Marwadi University Research Center, Department of Physics, Faculty of Science, Marwadi University Rajkot-360003, Gujarat, India
⁴ Department of Physics and Electronics, School of Sciences, JAIN (Deemed to be University) Bangalore, Karnataka, India
⁵ Centre for Research Impact and Outcome, Chitkara University Institute of Engineering and Technology, Chitkara University - Rajpura, 140401, Punjab, India
⁶ Department of Physics, Chandigarh Engineering College, Chandigarh Group of Colleges-Jhanjeri Mohali 140307, Punjab, India
⁷ Department of Physics, Raghu Engineering College - Visakhapatnam, Andhra Pradesh-531162, India

Received: 29 October 2024
Accepted: 13 January 2025

Abstract

The dispersion relation of surface plasmon polaritons (SPPs) is investigated as a function of the volume fraction of silver nanoparticles at the interface between nanocomposite and atomic media. The increase in silver nanoparticle content significantly influences SPP propagation, which is crucial for advancing plasmonic technologies. As the volume fraction of silver nanoparticles increases from 0% to 60%, the real part of the SPP wave vector rises from to , and the SPP wavelength decreases from to . This also modifies the propagation length from to and reduces the penetration depth in the nanocomposite from 0.125 nm to 0.005 nm.