Results 41 to 50 of about 190,173 (286)
Diffraction-limited axial double foci and optical traps generated by optimization-free planar lens
Nanophotonics, 2020 Axial diffraction-limited multiple foci are a kind of investigated focal field for trapping multiple nano-particles. We first experimentally generated diffraction-limited axial double foci by optimization-free binary planar lens and theoretically ...
Ma Long +7 more
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A lateral optical equilibrium in waveguide-resonator optical force [PDF]
Optics Express, 2013 8 ...
Shanhui Fan, Varat Intaraprasonk
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Beilstein Journal of Nanotechnology, 2023 Light can exert radiation pressure on any object it encounters, and the resulting optical force can be used to manipulate particles at the micro- or nanoscale.
Guangdong Wang, Zhanghua Han
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Optical forces in the T-matrix formalism
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2019 Optical tweezers are a crucial tool for the manipulation and characterisation, without mechanical contact, of micro- and nanoparticles, ranging from biological components, such as biomolecules, viruses, bacteria, and cells, to nanotubes, nanowires, layered materials, plasmonic nanoparticles, and their composites.
Polimeno P. +4 more
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Optical forces in nanowire pairs and metamaterials [PDF]
Optics Express, 2010 We study the optical force arising when isolated gold nanowire pairs and metamaterials with a gold nanowire pair in the unit cell are illuminated with laser radiation. Firstly, we show that isolated nanowire pairs are subject to much stronger optical forces than nanospheres due to their stronger electric and magnetic dipole resonances.
Zhao, Rongkuo +3 more
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Trapping and Optomechanical Sensing of Particles with a Nanobeam Photonic Crystal Cavity
Crystals, 2019 Particle trapping and sensing serve as important tools for non-invasive studies of individual molecule or cell in bio-photonics. For such applications, it is required that the optical power to trap and detect particles is as low as possible, since large ...
Lin Ren, Yunpeng Li, Na Li, Chao Chen
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Multi-electron beam generation using co-propagating, parallel laser beams
New Journal of Physics, 2018 High intensity short pulse laser plasma interaction experiments were performed to investigate laser wakefield acceleration (LWFA) in the ‘bubble’ regime. Using a specially designed phase plate, two high intensity laser focal spots were generated adjacent
J Elle +9 more
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Plasmonic Nanostructures for Optically Induced Movement
Frontiers in Nanotechnology, 2022 Optical forces generated at the nanoscale using electric field gradients have proven to be a powerful tool for trapping and moving nano-objects in a variety of application fields ranging from aerospace engineering to biology and medicine.
Sergio Balestrieri +4 more
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Trapping and Manipulation of Single Cells in Crowded Environments
Frontiers in Bioengineering and Biotechnology, 2020 Optical tweezers provide a powerful tool to trap and manipulate living cells, which is expected to help people gain physiological insights at single-cell level.
Qian Zhao +8 more
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MSUD-YOLO: A Novel Multiscale Small Object Detection Model for UAV Aerial Images
DronesDue to the objects in UAV aerial images often presenting characteristics of multiple scales, small objects, complex backgrounds, etc., the performance of object detection using current models is not satisfactory.
Xiaofeng Zhao +6 more
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