Martin Gentile

Department: Physics
Discipline: Physics and Astronomy
Research Centre/Unit: G31, Physics Building

Project Summary

I started my PhD in September 2012. During the course of my research, I have investigated the effect of permittivity in the complex plane on the observed reflectance spectra for dye-doped films, and on the absorption spectra of nanoparticles.

I have theorised with experimental confirmation that some dye-doped plastics may exhibit surface exciton polariton (SEP) modes. I have used this result to predict that localised SEP modes should exist in nanoparticles of the same material and act as magnets for light.

Wider Research Interests

At home, I read widely and program my own physical simulations. In 2015, I tutored myself in the principles of Computational Fluid Dynamics. By writing a program from scratch utilising the Navier-Stokes equations in spherical polars, I managed to produce a simple global climate model for Earth, which faithfully reproduced ocean currents, westerlies, and the trade winds. Going further, I have begun to examine atmospheric gravity waves and momentum transport from a mathematical physics perspective.

As a hobby, I enjoy programming Apps on my Android devices. For example, in 2015 I created a fully portable Sudoku solver in C and Android Java.

Authored Publications/Reports

M. J. Gentile, S. Núñez-Sánchez, and W. L. Barnes (4th April 2014) Optical Field-Enhancement and Subwavelength Field-Confinement Using Excitonic Nanostructures, Nano Letters, 14 (5), 2339–2344

Martin J. Gentile; William L. Barnes (10th September 2014) Transient plasmon-like modes in multi-level quantum emitter systems , Proc. SPIE, 9163, 91632F-1-91632F-11

Martin J Gentile, Simon A R Horsley and William L Barnes (17th November 2015) Localized exciton–polariton modes in dye-doped nanospheres: a quantum approach, Journal of Optics, 18, 015001