Structure capable of dynamically controlling bending beam

Abstract

The invention relates to a structure capable of dynamically controlling a bending beam. The structure comprises a substrate layer, multiple optical gratings formed by metal strips are arranged on thesubstrate layer, the side faces of the metal strips are covered with light-transmitted conductive films, and multiple parallel second metal strips are arranged on each light-transmitted conductive film; and electrodes are arranged on the front side and the back side of the substrate layer, and the light-transmitted conductive films are electrically connected with the electrodes. According to the structure capable of dynamically changing the light transmission direction, the transmission direction of linearly polarized light is deflected by changing the light transmission phase, and the specific mode comprises the steps that the effective refractive indexes of the light-transmitted conductive films are changed by means of the electrodes loaded on the light-transmitted conductive films to change the distances of lights propagating in the optical gratings, and therefore lights propagating in the various optical gratings generate phase differences and are superimposed after penetrating through the optical gratings to generate bending propagating.

Description

technical field [0001] The invention relates to the technical field of space optics, in particular to a structure capable of dynamically adjusting a curved light beam. Background technique [0002] Space-bending beams have important applications in fields such as optical trapping and fiber optic sensing, where the medium environment of space plays an important role. In recent years, researchers have realized surface plasmon Airy beams, space-like Airy plasmon beams, and arbitrarily curved surface plasmon beams by preparing micro-nano array structures on metal surfaces. And space arbitrary bending beams, etc. In addition, the researchers realized the secondary regulation of the surface plasmon polariton Airy beam by constructing the gradient effective refractive index space. In the application and secondary control of curved beams, the space medium environment plays an important role, so it is very necessary to study the propagation characteristics of curved beams in the me...

AI Technical Summary

Problems solved by technology

However, existing studies are limited to Airy beams that can give specific wave equations, and further research is still needed on the refraction characteristics of arbitrary curved beams at linear interfaces and linear-nonlinear interfaces.

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