Results 21 to 30 of about 1,035,293 (328)

Optical Force and Torque on a Graphene-Coated Gold Nanosphere by a Vector Bessel Beam. [PDF]

open access: yesMicromachines (Basel), 2022
In the framework of the generalized Lorenz–Mie theory (GLMT), the optical force and torque on a graphene-coated gold nanosphere by a vector Bessel beam are investigated.
Yan B, Ling X, Li R, Zhang J, Liu C.
europepmc   +2 more sources

Interrogating imaginary optical force by the complex Maxwell stress tensor theorem. [PDF]

open access: yesLight Sci Appl, 2023
The complex Maxwell stress tensor theorem has been developed to relate the imaginary optical force, reactive strength of canonical momentum and total optical force of a nanoparticle, which is essential to perfect optical force efficiency.
Zeng J, Wang J.
europepmc   +2 more sources

Gain-Assisted Optical Pulling Force on Plasmonic Graded Nano-Shell with Equivalent Medium Theory

open access: yesPhysics, 2021
The tunable optical pulling force on a graded plasmonic core-shell nanoparticle consisting of a gain dielectric core and graded plasmonic shell is investigated in the illumination of a plane wave.
Yamin Wu, Yang Huang, Pujuan Ma, Lei Gao
doaj   +1 more source

Optical Penetration of Shape-Controlled Metallic Nanosensors across Membrane Barriers

open access: yesSensors, 2023
Precise nanostructure geometry that enables the optical biomolecular delivery of nanosensors to the living intracellular environment is highly desirable for precision biological and clinical therapies.
Ancheng Da   +5 more
doaj   +1 more source

Efficient post-processing of electromagnetic plane wave simulations to model arbitrary structured beams incident on axisymmetric structures

open access: yesNew Journal of Physics, 2023
The study of an optical beam interacting with material structures is a fundamental of nanophotonics. Computational electromagnetic solvers facilitate the rapid calculation of the scattering from material structures with arbitrary geometry and complexity,
J J Kingsley-Smith   +1 more
doaj   +1 more source

Polarization-Dependent Lateral Optical Force of Subwavelength-Diameter Optical Fibers. [PDF]

open access: yesMicromachines (Basel), 2019
It is highly desirable to design optical devices with diverse optomechanical functions. Here, we investigate lateral optical force exerted on subwavelength-diameter (SD) optical fibers harnessed by input light modes with different polarizations.
Wang X   +5 more
europepmc   +2 more sources

Optical forces in photonic Weyl system

open access: yesNew Journal of Physics, 2022
Topological photonics has attracted extensive attention, since it allows for a platform to explore and exploit versatile nano-optics systems. In particular, the ideal Weyl metamaterials have recently been demonstrated with fascinating phenomena such as ...
Yang Yang   +6 more
doaj   +1 more source

Mitigation of GNSS Time Synchronization Attacks in a Multicorrelator Receiver

open access: yesIEEE Access, 2022
Global navigation satellite systems (GNSSs) are widely used in various fields to provide high-precision timing. However, their low signal power and open signal structure render GNSS receivers vulnerable to time synchronization attacks (TSAs).
Xiangyong Shang   +4 more
doaj   +1 more source

Wideband and high-efficiency spin-locked achromatic meta-device

open access: yesNanophotonics, 2022
Achromatic devices present unique capabilities in efficient manipulation of waves and have wide applications in imaging and communication systems. However, the research of achromatic devices is limited by the narrow bandwidth, low efficiency as well as ...
Cui Xingshuo   +7 more
doaj   +1 more source

Fiber Optofluidic Technology Based on Optical Force and Photothermal Effects. [PDF]

open access: yesMicromachines (Basel), 2019
Optofluidics is an exciting new area of study resulting from the fusion of microfluidics and photonics. It broadens the application and extends the functionality of microfluidics and has been extensively investigated in biocontrol, molecular diagnosis ...
Zhang C   +5 more
europepmc   +2 more sources

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