Results 31 to 40 of about 192,487 (281)
Microrheology With an Anisotropic Optical Trap [PDF]
Frontiers in Physics, 2021 Microrheology with optical tweezers (MOT) measurements are usually performed using optical traps that are close to isotropic across the plane being imaged, but little is known about what happens when this is not the case. In this work, we investigate the effect of anisotropic optical traps on microrheology measurements.
Matheson, Andrew B. +6 more
openaire +4 more sources
Energy Reviews, 2023 Optical tweezers system has emerged as an efficient tool to manipulate tiny particles in a non-invasive way. Trapping stiffness, as an essential parameter of an optical potential well, represents the trapping stability.
Xiaolin Chen +10 more
doaj +1 more source
Cooling of a single atom in an optical trap inside a resonator [PDF]
, 2001 We present detailed discussions of cooling and trapping mechanisms for an atom in an optical trap inside an optical cavity, as relevant to recent experiments.
A.C. Doherty +28 more
core +3 more sources
A hybrid method to calculate optical torque: Application to a nano-dumbbell trapped by a metalens
AIP Advances, 2022 The hyper-fast rotation frequency realized in an optical levitation system provides an essential platform for various applications. Benefiting from the development of integrated photonics, optically trapping and manipulating a micro-particle via a ...
Chuang Sun, Jize Yan
doaj +1 more source
Scalable trapping of single nanosized extracellular vesicles using plasmonics
Nature Communications, 2023 Heterogeneous nanoscale extracellular vesicles (EVs) are of significant interest for disease detection, monitoring, and therapeutics. However, trapping these nano-sized EVs using optical tweezers has been challenging due to their small size.
Chuchuan Hong, Justus C. Ndukaife
doaj +1 more source
On-fringe optical trapping of dielectric microparticles in air [PDF]
EPJ Web of ConferencesOptical trapping in air of dielectric micro-spheres is reported using a dual fiber optical tweezers. The spheres are trapped on the interference fringes created by the two counter-propagating optical trapping beams.
Magguilli Clémence, Fick Jochen
doaj +1 more source
Enhancing gradient force over scattering force for nano-trapping through compensating for aberration
New Journal of Physics, 2023 One challenge of optical trapping of nanoparticles is the weak trapping force compared to the destabilizing pushing force. Here we enhance the optical gradient force (GF), which is responsible for trapping, to achieve stable nanoparticle trapping through
Dongyong Wang, Xiao Li, Jack Ng
doaj +1 more source
Dimensionality and size of photorefractive spatial solitons [PDF]
, 1994 We study experimentally self-trapping of optical beams in photorefractive media and show that the trapping is inherently asymmetric with respect to the two (transverse) trapping dimensions.
Crosignani, Bruno +6 more
core +1 more source
Toward the Stable Optical Trapping of a Droplet with Counter Laser Beams under Microgravity [PDF]
, 2006 To identify the optimum conditions for the optical trapping of a droplet under microgravity, we theoretically analyzed the efficiency of trapping with counter laser beams.
Akihiro Isomura +15 more
core +2 more sources
Effects of Infrared Optical Trapping on Saccharomyces cerevisiae in a Microfluidic System
Sensors, 2017 Baker’s yeast (Saccharomyces cerevisiae) represents a very popular single-celled eukaryotic model organism which has been studied extensively by various methods and whose genome has been completely sequenced.
Zdeněk Pilát +3 more
doaj +1 more source