Journal ArticleDOI
Negative propagation of vector Bessel beams
TLDR
Energy characteristics of the superposition of TE- and TM-polarized electromagnetic Bessel beams are studied and the following phenomena are predicted, which should confirm negative beam propagation: reflection of the beam from a circular aperture and unusual movement of microparticles in the beam.Abstract:
Energy characteristics of the superposition of TE- and TM-polarized electromagnetic Bessel beams are studied. For some phase differences between TE and TM waves the components of the Poynting vector vary in sign. We call this situation "negative propagation," because locally the beam may behave like a wave propagating in the direction opposite to the conventional one. We predict the following phenomena, which should confirm negative beam propagation: reflection of the beam from a circular aperture and unusual movement of microparticles in the beam.read more
Citations
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Journal ArticleDOI
Optical pulling force
TL;DR: Theoretical analysis suggests that there exists an optical attractive force capable of "pulling" microparticles towards a light source as mentioned in this paper, which is generated by using interference to optimize the scattering of light in the forwards direction.
Journal ArticleDOI
Generation of wavelength-independent subwavelength Bessel beams using metasurfaces
Wei Ting Chen,Mohammadreza Khorasaninejad,Alexander Y. Zhu,Jaewon Oh,Jaewon Oh,Robert C. Devlin,Aun Zaidi,Federico Capasso +7 more
TL;DR: Meta-axicons with high NA up to 0.9 capable of generating Bessel beams with full width at half maximum about as small as ~λ/3 (λ=405 nm) have transverse intensity profiles independent of wavelength across the visible spectrum.
Journal ArticleDOI
On the concept of “tractor beams”
Sergey Sukhov,Aristide Dogariu +1 more
TL;DR: It is demonstrated the existence of a class of optical beams where the nonconservative forces can be locally oriented in a direction opposite to the propagation wave vector.
Journal ArticleDOI
Photon trajectories, anomalous velocities and weak measurements: a classical interpretation
Konstantin Y. Bliokh,Aleksandr Bekshaev,Abraham G. Kofman,Abraham G. Kofman,Franco Nori,Franco Nori +5 more
TL;DR: In this paper, it was shown that weak measurements of the local momentum of photons made by Kocsis et al represent measurements of Poynting vector in an optical field and that their measurements have been realized in classical optics using small-probe particles.
Journal ArticleDOI
Plasmonic nanoparticles: fabrication, simulation and experiments
TL;DR: In this article, a review of the optical properties of single plasmonic nanostructures is presented, with a focus on the properties of surface plasmons and their application in light localization, elastic and inelastic scattering of light and interaction between optical and other physical properties.
References
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Journal ArticleDOI
The Electrodynamics of Substances with Simultaneously Negative Values of ∊ and μ
Journal ArticleDOI
Composite Medium with Simultaneously Negative Permeability and Permittivity
TL;DR: A composite medium, based on a periodic array of interspaced conducting nonmagnetic split ring resonators and continuous wires, that exhibits a frequency region in the microwave regime with simultaneously negative values of effective permeability and permittivity varepsilon(eff)(omega).
Journal ArticleDOI
Radiation forces on a dielectric sphere in the Rayleigh scattering regime
TL;DR: Theoretical expressions of the radiation pressure force for a dielectric sphere in the Rayleigh regime of light scattering under illumination of a Gaussian laser beam with the fundamental mode are derived in explicit form as a function of measurable quantities of the beam parameter in MKS units as mentioned in this paper.
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Self-reconstruction of a distorted nondiffracting beam
Z. Bouchal,J. Wagner,M Chlup +2 more
TL;DR: In this article, it is shown that a nondiffracting beam disturbed by an obstacle is able to reconstruct its initial amplitude profile under free propagation, and simple theoretical explanation, numerical simulation and experimental verification of the effect are presented.
Journal ArticleDOI
Generation of a beam with a dark focus surrounded by regions of higher intensity: the optical bottle beam
Jochen Arlt,Miles J. Padgett +1 more
TL;DR: A computer-generated hologram is used to form an optical beam with a localized intensity null at its focus that will have applications in the optical trapping of macroscopic objects or atoms; hence the term optical bottle beam.