84 citations · 666 across the 26 of their papers we have counts for
27 papers
Disruptive Forces in Metamaterial Tweezers for Trapping 20 nm Nanoparticles Based on Molecular Graphene Quantum Dots
Theodoros D. Bouloumis, Hao Zhao, Nikolaos Kokkinidis +4
In recent years, plasmonic optical tweezers have been used to trap nanoparticles and study interactions with their environment. An unavoidable challenge is the plasmonic heating du…
Unleashing Urease Protein Dynamics with Metamaterial Optical Tweezers
Domna G. Kotsifaki, Viet Giang Truong, Mirco Dindo +3
Investigating the dynamics of single biomolecules is essential for unlocking new frontiers in biophysics and medicine. Here, we present a transformative approach using metamaterial…
Asymmetric split-ring plasmonic nanostructures for optical sensing of Escherichia coli
Domna G. Kotsifaki, Rajiv Ranjan Singh, Sile Nic Chormaic +1
Strategies for in-liquid micro-organism detection are crucial for the clinical and pharmaceutical industries. While Raman spectroscopy is a promising label-free technique for micro…
Roadmap for Optical Tweezers
Giovanni Volpe, Onofrio M. Maragò, Halina Rubinzstein-Dunlop +80
Optical tweezers are tools made of light that enable contactless pushing, trapping, and manipulation of objects ranging from atoms to space light sails. Since the pioneering work b…
Efficient Optical Manipulation of Janus Particles by Optical Nanofibers
Cindy Esporlas, Georgiy Tkachenko, Isha Sanskriti +2
Small composite objects, known as Janus particles, drive sustained scientific interest primarily targeted at biomedical applications, where such objects act as micro- or nanoscale…
Dynamic Multiple Nanoparticle Trapping using Metamaterial Plasmonic Tweezers
Domna G. Kotsifaki, Viet Giang Truong, Sile Nic Chormaic
Optical manipulation has attracted remarkable interest owing to its versatile and non-invasive nature. However, conventional optical trapping remains inefficient for the nanoscopic…
Plasmonic tweezers based on connected nanoring apertures
Theodoros D. Bouloumis, Domna G. Kotsifaki, Xue Han +2
The manipulation of microparticles using optical forces has led to many applications in the life and physical sciences. To extend optical trapping towards the nano-regime, in this…
Fano-Resonant, Asymmetric, Metamaterial-Assisted Tweezers for Single Nanoparticle Trapping
Domna G. Kotsifaki, Viet Giang Truong, Sile Nic Chormaic
Plasmonic nanostructures can overcome Abbe's diffraction limit to generate strong gradient fields, enabling efficient optical trapping of nano-sized particles. However, it remains…
Fabrication of Optical Nanofibre-Based Cavities using Focussed Ion-Beam Milling -- A Review
Priscila Romagnoli, Maki Maeda, Jonathan M. Ward +2
Nanofibre-based optical cavities are particularly useful for quantum optics application, such as the development of integrated single-photon sources, and for studying fundamental l…
Light-induced rotation of dielectric microparticles around an optical nanofiber
Georgiy Tkachenko, Ivan Toftul, Cindy Esporlas +4
We experimentally demonstrate orbiting of isotropic, dielectric microparticles around an optical nanofiber that guides elliptically polarized fundamental modes. The driving transve…
Force of light on a two-level atom near an ultrathin optical fiber
Fam Le Kien, D F Kornovan, S Sahar S Hejazi +4
We study the force of light on a two-level atom near an ultrathin optical fiber using the mode function method and the Green tensor technique. We show that the total force consists…
Efficient Microparticle Trapping with Plasmonic Annular Apertures Arrays
Xue Han, Viet Giang Truong, Síle Nic Chormaic
In this work, we demonstrate trapping of microparticles using a plasmonic tweezers based on arrays of annular apertures. The transmission spectra and the E- field distribution are…
Sequential trapping of single nanoparticles using a gold plasmonic nanohole array
Xue Han, Viet Giang Truong, Sile Nic Chormaic
We have used a gold nanohole array to trap single polystyrene nanoparticles, with a mean diameter of 30 nm, into separated hot spots located at connecting nanoslot regions. A high…
Chiral force of guided light on an atom
Fam Le Kien, S. Sahar S. Hejazi, Viet Giang Truong +2
We calculate the force of a near-resonant guided light field of an ultrathin optical fiber on a two-level atom. We show that, if the atomic dipole rotates in the meridional plane,…
Channeling of spontaneous emission from an atom into the fundamental and higher-order modes of a vacuum-clad ultrathin optical fiber
Fam Le Kien, S. Sahar S. Hejazi, Thomas Busch +2
We study spontaneous emission from a rubidium atom into the fundamental and higher-order modes of a vacuum-clad ultrathin optical fiber. We show that the spontaneous emission rate…
Optical nanofiber-based cavity induced by periodic air-nanohole arrays
Wenfang Li, Jinjin Du, Viet Giang Truong +1
We experimentally realized an optical nanofiber-based cavity by combining a 1-D photonic crystal and Bragg grating structures. The cavity morphology comprises a periodic, triplex a…
Higher-order modes of vacuum-clad ultrathin optical fibers
Fam Le Kien, Thomas Busch, Viet Giang Truong +1
We present a systematic treatment of higher-order modes of vacuum-clad ultrathin optical fibers. We show that, for a given fiber, the higher-order modes have larger penetration len…
Nonlinear force dependence on optically bound micro-particle arrays in the eva-nescent fields of fundamental and higher order microfibre modes
Aili Maimaiti, Daniela Holzmann, Viet Giang Truong +2
Particles trapped in the evanescent field of an ultrathin optical fibre inter-act over very long distances via multiple scattering of the fibre-guided fields. In ultrathin fibres t…
Evanescent field trapping of nanoparticles using nanostructured ultrathin optical fibers
Mark Daly, Viet Giang Truong, Síle Nic Chormaic
While conventional optical trapping techniques can trap objects with submicron dimensions, the underlying limits imposed by the diffraction of light generally restrict their use to…
Optical nanofibre integrated into an optical tweezers for particle manipulation, in situ fibre probing, and optical binding studies
Ivan Gusachenko, Viet Giang Truong, Mary C. Frawley +1
Precise control of particle positioning is desirable in many optical propulsion and sorting applications. Here, we develop an integrated platform for particle manipulation consisti…
Higher order microfibre modes for dielectric particle trapping and propulsion
Aili Maimaiti, Viet Giang Truong, Marios Sergides +2
Optical manipulation in the vicinity of optical micro- and nanofibres has shown potential across several fields in recent years, including microparticle control, and cold atom prob…
Selective particle trapping and optical binding in the evanescent field of an optical nanofiber
Mary C. Frawley, Ivan Gusachenko, Viet Giang Truong +2
The evanescent field of an optical nanofiber presents a versatile interface for the manipulation of micron-scale particles in dispersion. Here, we present a detailed study of the o…
Optical nanofiber integrated into an optical tweezers for particle manipulation and in-situ fiber probing
Ivan Gusachenko, Mary C. Frawley, Viet Giang Truong +1
Precise control of particle positioning is desirable in many optical propulsion and sorting applications. Here, we develop an integrated platform for particle manipulation consisti…
Nanostructured optical nanofibres for atom trapping
Mark Daly, Viet Giang Truong, Ciarán Phelan +2
We propose an optical dipole trap for cold neutral atoms based on the electric field produced from the evanescent fields in a hollow rectangular slot cut through an optical nanofib…