Surface plasmon resonance of Cu nanowires in polycarbonate template

TL;DR

This study investigates the surface plasmon resonance properties of copper nanowires embedded in polycarbonate, combining experimental measurements with optical modeling to understand their resonance behavior at specific angles and wavelengths.

Contribution

The paper presents a combined experimental and theoretical analysis of copper nanowire surface plasmon resonance in polycarbonate, demonstrating good agreement between measured and modeled absorption spectra.

Findings

Broad surface plasmon peak at 730 nm and 70° incident angle

Good agreement between experimental data and transfer matrix model

Potential applications in plasmonic devices and sensors

Abstract

The Cu nanowires were electrodeposited in polycarbonate track-etched (PCT) membrane. SEM, TEM and XPS techniques were used to characterize the morphology, structure and size of nanowires as well as chemical Composition. The absorption spectrum of copper nanowires embedded in PCT was measured and calculated for different incident angles and wavelengths. Our results showed that there is a broad peak due to excitation surface plasmon at {\theta} = 70\degree for wavelength {\lambda}= 730 nm. We applied the transfer matrix method and Bruggeman homogenization formalism for optical modeling. The results of absorption spectra showed that exist good agreement between the experimental and our used model. The results of this work may be useful in study of surface plasmon resonance of copper nanowires.