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Nonlinear nanoantenna scattering directivity control method, device and equipment

A nano-antenna and nonlinear equation technology, applied in the field of light manipulation, can solve problems such as dynamic scattering properties that are not considered, and achieve high adjustability and enhanced operability

Active Publication Date: 2018-07-31
SUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, graphene structure, plasmonic phenomena and nonlinear response are still largely unexplored, and these studies only studied its surface plasmon and scattering properties statically, without considering its random Time Evolving Kinetic Scattering Properties

Method used

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  • Nonlinear nanoantenna scattering directivity control method, device and equipment
  • Nonlinear nanoantenna scattering directivity control method, device and equipment
  • Nonlinear nanoantenna scattering directivity control method, device and equipment

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Embodiment Construction

[0053] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0054] The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the above drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device compris...

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Abstract

The embodiment of the invention discloses a nonlinear nanoantenna scattering directivity control method, device and equipment, and a computer readable storage medium. The method comprises the steps: adding a plane electromagnetic wave to a dimer nanoantenna which is formed in a manner that first dielectric material particles and nonlinear graphene wrap second dielectric material particles, and calculating dynamical nonlinear equations for describing the electric dipole moment of the dimer nanoantenna; calculating the dipole scattering intensity of the dimer nanoantenna according to the nonlinear equations; Adjusting the geometric parameters of the dimer nanoantenna and the conductivity parameter of graphene to enable the dipole scattering of the dimer nanoantenna to be in a bistable stateunder the preset frequency of the plane electromagnetic wave, adjusting the electric field amplitude of the plane electromagnetic wave applied to the dimer nanoantenna, so as to enable the scatteringstate of the dimer nanoantenna to be switched between a first directional scattering state and a second directional scattering state. According to the invention, the method achieves the controllable operation of the scattering direction of a nonlinear optical nanoantenna in a time evolution process.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of light manipulation, and in particular, to a method, device, equipment and computer-readable storage medium for manipulating the scattering directionality of nonlinear nano-antennas. Background technique [0002] Antennas have been widely used in daily life and scientific research fields such as radio, television, and remote sensing. The operating wavelength of a conventional antenna varies with its size. However, when the size of the antenna reaches the nanoscale or is far below the optical diffraction limit, the absorption of visible / near-infrared rays by its metal nanostructures and the influence of the quantum size effect cannot be ignored, and because in the optical frequency band, due to the lens, mirror Such macroscopic optical elements are used to redirect the wave front and the antenna has not been further studied. The realization of the optical frequency band antenna ca...

Claims

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Application Information

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IPC IPC(8): H01Q3/22H01Q1/36
CPCH01Q1/36H01Q3/22
Inventor 马普娟高雷罗曼
Owner SUZHOU UNIV
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