FisMat2017 - Submission - View

Abstract's title: Enhancement of light transmission through random copper thin-films near the percolation threshold
Submitting author: Luis Guillermo Mendoza Luna
Affiliation: Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa
Affiliation Address: Av. San Rafael Atlixco No. 186 Col. Vicentina, C.P. 09340 México D.F., México
Country: Mexico
Oral presentation/Poster (Author's request): Oral presentation
Other authors and affiliations: Eva Mayra Rojas Ruiz (Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa), José Luis Hernández Pozos (Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa)

In this work, we investigate the optical properties of thin-films deposited on glass via laser ablation of copper. It has been found that for films lying below the percolation limit, copper is deposited in a random fashion and upon approaching the percolation threshold the light transmission experiences an enhancement; this finding is at odds with the transmission of light in related TiO2/Cu/TiO2 multilayer systems, in which such enhancement does not happen. To the best of our knowledge, this is the first example of enhanced light transmission in random media. Light transmission simulations of the systems of interest are performed using open-source software DDSCAT.