Articles with "gradient force" as a keyword



Omnidirectional Gradient Force Optical Trapping in Dielectric Nanocavities by Inverse Design

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Published in 2024 at "ACS Photonics"

DOI: 10.1021/acsphotonics.4c01060

Abstract: Optical trapping enables precise control of individual particles of different sizes, such as atoms, molecules, or nanospheres. Optical tweezers provide free-space omnidirectional optical trapping of objects in laboratories around the world. As an alternative to… read more here.

Keywords: gradient force; inverse design; dielectric nanocavities; optical trapping ... See more keywords
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Generation and modulation of terahertz gradient force in the interactions of two-color laser pulses with magnetized plasmas

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Published in 2020 at "Journal of Applied Physics"

DOI: 10.1063/1.5118914

Abstract: Terahertz (THz) waves, as far-infrared light, offer new opportunities for the optical trapping and manipulation of single cells, in contrast to the other light sources. We present an efficient scheme to flexibly control multiple THz… read more here.

Keywords: modulation; gradient force; field; thz ... See more keywords

Phase-gradient force-based optical array sorter

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Published in 2025 at "Applied Physics Letters"

DOI: 10.1063/5.0238242

Abstract: Microparticle sorting is crucial for applications in biomedicine, environmental monitoring, and biochip technology. However, traditional optical sorting methods often rely on external equipment, such as microfluidic devices. In this Letter, we proposed a phase-gradient force-based… read more here.

Keywords: force based; phase gradient; gradient force;

Optical gradient force on chiral particles

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Published in 2022 at "Science Advances"

DOI: 10.1126/sciadv.abq2604

Abstract: When a chiral nanoparticle is optically trapped using a circularly polarized laser beam, a circular polarization (CP)–dependent gradient force can be induced on the particle. We investigated the CP-dependent gradient force exerted on three-dimensional chiral… read more here.

Keywords: force chiral; force; optical gradient; dependent gradient ... See more keywords

Quantitative study of conservative gradient force and non-conservative scattering force exerted on a spherical particle in optical tweezers.

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Published in 2021 at "Optics express"

DOI: 10.1364/oe.434208

Abstract: We rigorously calculate the conservative gradient force (GF) and the non-conservative scattering force (SF) associated with the optical tweezers (the single beam optical trap). A wide range of parameters are considered, with particle size ranging… read more here.

Keywords: force non; conservative gradient; force; optical tweezers ... See more keywords

Effects of Lorentz Force and Gradient Force of Magnetic Field on Seawater Corrosion Behavior of Carbon Steels

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Published in 2023 at "CORROSION"

DOI: 10.5006/4285

Abstract: With the rapid development of modern civilization, the development of Marine resources has become imminent, but seawater corrosion has become one of the most important factors hindering development. In order to overcome this problem, an… read more here.

Keywords: magnetic field; force; corrosion; gradient force ... See more keywords