Chiral plasmonics and their potential for point-of-care biosensing applications

W A. Paiva-Marques, F Reyes Gómez, O N. Oliveira Jr… - Sensors, 2020 - mdpi.com
There has been growing interest in using strong field enhancement and light localization in
plasmonic nanostructures to control the polarization properties of light. Various experimental …

Chiral metamaterials of plasmonic slanted nanoapertures with symmetry breaking

Y Chen, J Gao, X Yang - Nano letters, 2018 - ACS Publications
We propose a universal design scheme for a new type of chiral metamaterials based on
plasmonic slanted nanoapertures simply milled in a single metal layer. Strong optical …

Differentiating and quantifying exosome secretion from a single cell using quasi-bound states in the continuum

A Ndao, L Hsu, W Cai, J Ha, J Park, R Contractor… - …, 2020 - degruyter.com
One of the key challenges in biology is to understand how individual cells process
information and respond to perturbations. However, most of the existing single-cell analysis …

Transmission properties of slanted annular aperture arrays. Giant energy deviation over sub-wavelength distance

T Alaridhee, A Ndao, MP Bernal, E Popov… - Optics express, 2015 - opg.optica.org
This paper is devoted to the study of the transmission properties of Slanted Annular Aperture
Arrays made in perfectly conducting metal. More precisely, we consider the transmission …

Local phase method for designing and optimizing metasurface devices

L Hsu, M Dupré, A Ndao, J Yellowhair, B Kanté - Optics express, 2017 - opg.optica.org
Metasurfaces have attracted significant attention due to their novel designs for flat optics.
However, the approach usually used to engineer metasurface devices assumes that …

Local field enhancement using a photonic-plasmonic nanostructure

L Hsu, FI Baida, A Ndao - Optics Express, 2021 - opg.optica.org
Over the last few years, optical nanoantennas are continuously attracting interest owing to
their ability to efficiently confine, localize resonance, and significantly enhanced …

Nanocoaxes for optical and electronic devices

B Rizal, JM Merlo, MJ Burns, TC Chiles, MJ Naughton - Analyst, 2015 - pubs.rsc.org
The evolution of micro/nanoelectronics technology, including the shrinking of devices and
integrated circuit components, has included the miniaturization of linear and coaxial …

Plasmonless polarization-selective metasurfaces in the visible range

A Ndao, R Salut, M Suarez, FI Baida - Journal of Optics, 2018 - iopscience.iop.org
In this paper, we perform numerical and experimental studies of the optical response of an
original configuration that consists of enhanced transmission guided mode-based …

Revealing photonic symmetry-protected modes by the finite-difference-time-domain method

A Hoblos, M Suarez, B Guichardaz, N Courjal… - Optics letters, 2020 - opg.optica.org
This Letter is devoted to pointing out a specific feature of the finite-difference-time-domain
(FDTD) method through the study of nano-structures supporting geometrical symmetry …

Mie-resonance-coupled total broadband transmission through a single subwavelength aperture

Y Sheng Guo, J Zhou, C Wen Lan, H Ya Wu… - Applied Physics …, 2014 - pubs.aip.org
Using strongly localized electromagnetic fields and efficiently coupled Mie resonances of
two high-permittivity low-loss ceramic particles located at either side of a metallic aperture …