# Transverse polarization light scattering in tubular semiconductor nanowires

## TL;DR

This paper numerically investigates how tubular semiconductor nanowires scatter light, revealing tunable resonances influenced by internal radius variations, which could impact nanophotonic device design.

## Contribution

It introduces a detailed numerical analysis of light scattering in tubular nanowires, highlighting the effects of internal radius on resonance tuning and mode interactions.

## Key findings

- Internal radius variation allows spectral tuning of resonances.
- Presence of Fano resonances due to mode overlap.
- Guided modes interact with Mie resonances.

## Abstract

We carry out numerical calculations of the scattering cross section of tubular semiconductor nanocylinders in the optical range. The scattering is investigated for the transversal incidence of light, i.e., along the diameter of the cylinder, with both transverse electric and transverse magnetic polarization. These subwavelength nanostructures support Mie resonances and, when the length of the cylinder is comparable to the wavelength, guided modes that can overlap with the Mie modes giving rise to sharp Fano resonances. We show that a varying internal radius affects each mode differently, allowing for an extra degree of freedom for tuning the spectral position of the resonant peaks.