Results 61 to 70 of about 818,741 (308)
Circular dichroism in magneto-optical forces
Optics Express, 2022 In this article we use an exact method to resolve the fields scattered by a spherical magneto-optical particle and calculate the optical forces exerted on it. The resulting force and the contributing components, i.e. magneto-optical gradient force and magneto-optical extinction force, are presented in an analytical form.
Edelstein, Shulamit +3 more
openaire +4 more sources
Integrated Hybrid Tweezer for Particle Trapping with Combined Optical and Acoustic Forces
Applied Sciences, 2023 We propose an on-chip integrated hybrid tweezer that can simultaneously apply optical and acoustic forces on particles to control their motions. Multiple potential wells can be formed to trap particles, and the acoustic force generated by an interdigital
Sen Li, Xin Tong, Lutong Cai, Lin Zhang
doaj +1 more source
Chiral discrimination in optical binding [PDF]
, 2015 The laser-induced intermolecular force that exists between two or more particles in the presence of an electromagnetic field is commonly termed “optical binding.” Distinct from the single-particle forces that are at play in optical trapping at the ...
D. L. Andrews +7 more
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Optical forces near a nanoantenna [PDF]
Journal of Nanophotonics, 2010 The Maxwell stress tensor method is used to calculate the optical forces acting upon a glass nanosphere in the proximity of optically excited gold nanoantenna structures. The dependence of optical forces over a full range of excitation angles is explored: the total internal reflection excitation does not bring any particular advantage to trapping ...
Ploschner, Martin +3 more
openaire +4 more sources
Sculpting optical energy landscapes for multi-particle nanoscale assembly [PDF]
, 2014 To understand the forces and dynamics of two or more neutral particles trapped within an optical beam, careful consideration of the influence of inter-particle forces is required.
Andrews, David +2 more
core +1 more source
Resonant optical gradient force interaction for nano-imaging and -spectroscopy
New Journal of Physics, 2016 The optical gradient force provides optomechanical interactions, for particle trapping and manipulation, as well as for near-field optical imaging in scanning probe microscopy.
Honghua U Yang, Markus B Raschke
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Numerical and Experimental Investigation on the Optical Manipulation from an Axicon Lensed Fiber
Micromachines, 2021 Here we numerically and experimentally studied the optical trapping on a microsphere from an axicon lensed fiber (ALF). The optical force from the fiber with different tapered lengths and by incident light at different wavelengths is calculated ...
Wu Zhang +9 more
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Optical forces on patterned particles [PDF]
Complex Light and Optical Forces XIII, 2019 The non-conservative nature of optical forces has been explored previously, with the initial focus on spherical particles, and latterly on particles with less than spherical symmetry. Non-conservative optical forces occur in many different guises, and include lateral forces arising from shape asymmetry, polarisation dependant optical torques and spin ...
O'Donnell, Michael, Hanna, Simon
openaire +3 more sources
FEBS Letters, EarlyView.Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke +2 more
wiley +1 more source
On optical forces in spherical whispering gallery mode resonators
, 2011 In this paper we discuss the force exerted by the field of an optical cavity on a polarizable dipole. We show that the modification of the cavity modes due to interaction with the dipole significantly alters the properties of the force.
Anetsberger +27 more
core +1 more source