Enhancement of light absorption by leaky modes in a random plasmonic metasurface

A Reyes-Coronado, G Pirruccio… - The Journal of …, 2022 - ACS Publications
In this work, we study experimentally and theoretically the enhanced light absorption on a
supported random plasmonic monolayer made of gold nanospheres in a total internal …

Analytical modeling of optical reflectivity of random plasmonic nano-monolayers

A Reyes-Coronado, G Morales-Luna… - Optics …, 2018 - opg.optica.org
In this paper, we compare three different models that have been used to interpret reflectivity
measurements of supported monolayers of nanoparticles. Two of them:(i) isotropic Maxwell …

Large angle-independent structural colors based on all-dielectric random metasurfaces

AK González-Alcalde, A Reyes-Coronado - Optics Communications, 2020 - Elsevier
In this work, we report large angle-independent transmission colors generated by all-
dielectric random metasurfaces. The results are based on an analytical model available …

Fast and accurate optical determination of gold-nanofilms thickness

V Solis-Tinoco, A Acevedo-Barrera… - Optics & Laser …, 2021 - Elsevier
We propose and investigate an alternative optical method to determine the thickness of
metallic nanofilms thinner than about 50 nm deposited on glass substrates. The method …

Brewster effect in random and periodic high-refractive-index metasurfaces

AK González-Alcalde, IY Rojas-Martinez… - Optics …, 2022 - Elsevier
In this work, we investigate the generalized Brewster effect in random and periodic
metasurfaces, composed of identical spherical high-refractive-index nanoparticles. We …

Optical method for sensing surface coverage by unicellular organisms

R Márquez-Islas, O Vázquez-Estrada… - Optics & Laser …, 2019 - Elsevier
A theoretical and experimental assessment of an optical technique for the rapid
quantification of the density of biological cells adsorbed on a flat surface, as well as for …

Probing bio-tissue films by optical internal reflectivity: modeling and measurements

A Acevedo-Barrera, A García-Valenzuela - Applied Optics, 2021 - opg.optica.org
In this paper, we develop a detailed theoretical model for the optical reflectivity of a bio-
tissue film confined between two flat interfaces based on the anomalous-diffraction …

Broadband antireflective random metasurfaces

AK González-Alcalde, IY Rojas-Martinez… - JOSA B, 2021 - opg.optica.org
In this work, we propose and numerically investigate broadband antireflective random
metasurfaces. We demonstrate that a random monolayer of identical metallic subwavelength …

Analysis of Light Transmission in Skin Tissue Considering Scattering Condition in Beer-Lambert Type Models

J Valladares-Pérez, F Cortés-Ortegón… - Latin American …, 2022 - Springer
In this work, we present an analysis of light transmission of the Beer-Lambert Theory using a
multilayer skin model for oximetry applications that considers a system of different layers of …