Plasmonics for biosensing

X Han, K Liu, C Sun - Materials, 2019 - mdpi.com
Techniques based on plasmonic resonance can provide label-free, signal enhanced, and
real-time sensing means for bioparticles and bioprocesses at the molecular level. With the …

Optical trap** and two-photon excitation of colloidal quantum dots using bowtie apertures

RA Jensen, IC Huang, O Chen, JT Choy… - ACS …, 2016 - ACS Publications
We demonstrate bowtie apertures that were designed and fabricated by a lift-off process to
optically trap individual, 30 nm, silica-coated quantum dots (scQD). Simulations and …

Fiber-integrated optical nano-tweezer based on a bowtie-aperture nano-antenna at the apex of a SNOM tip

A El Eter, NM Hameed, FI Baida, R Salut, C Filiatre… - Optics express, 2014 - opg.optica.org
We propose a new concept of fiber-integrated optical nano-tweezer on the basis of a single
bowtie-aperture nano-antenna (BNA) fabricated at the apex of a metal-coated SNOM tip. We …

Algorithm‐designed plasmonic nanotweezers: quantitative comparison by theory, cathodoluminescence, and nanoparticle trap**

N Li, J Cadusch, A Liu, AJ Barlow… - Advanced Optical …, 2021 - Wiley Online Library
Plasmonic apertures permit optical fields to be concentrated into sub‐wavelength regions.
This enhances the optical gradient force, enabling the precise trap** of nanomaterials …

Enhanced-transmission metamaterials as anisotropic plates

FI Baida, M Boutria, R Oussaid, D Van Labeke - Physical Review B …, 2011 - APS
We present an original design of anisotropic metamaterial plates exhibiting extraordinary
transmission through perfectly conductor metallic screens perforated by a subwavelength …

Bowtie nano-aperture as interface between near-fields and a single-mode fiber

M Mivelle, IA Ibrahim, F Baida, GW Burr… - Optics express, 2010 - opg.optica.org
We present the development and study of a single bowtie nano-aperture (BNA) at the end of
a monomode optical fiber as an interface between near-fields/nano-optical objects and the …

Hybrid photonic antennas for subnanometer multicolor localization and nanoimaging of single molecules

M Mivelle, TS van Zanten, MF Garcia-Parajo - Nano letters, 2014 - ACS Publications
Photonic antennas amplify and confine optical fields at the nanoscale offering excellent
perspectives for nanoimaging and nanospectroscopy. Increased resolution beyond the …

Enhanced optical absorption and electric field resonance in diabolo metal bar optical antennas

Z Pan, J Guo - Optics Express, 2013 - opg.optica.org
Resonance behaviors of the fundamental resonance mode of diabolo metal bar optical
antennas are investigated by using finite-difference time-domain (FDTD) numerical …

Doubly resonant photonic antenna for single infrared quantum dot imaging at telecommunication wavelengths

Z **e, Y Lefier, MA Suarez, M Mivelle, R Salut… - Nano …, 2017 - ACS Publications
Colloidal quantum dots (CQDs) have drawn strong interest in the past for their high
prospects in scientific, medical, and industrial applications. However, the full …

Wedge and gap plasmonic resonances in double nanoholes

Y Chen, A Kotnala, L Yu, J Zhang, R Gordon - Optics express, 2015 - opg.optica.org
We study the plasmonic resonances of double nanoholes (DNHs) in metal films. These
apertures exhibit the usual gap-mode Fabry-Pérot resonances, where the zeroth order …