Spatial beam phase regulation device

A phase and beam technology, applied in optical components, optics, instruments, etc., can solve the problems of large structure aspect ratio, difficult preparation, and high cost, and achieve the advantages of reducing reflection and absorption loss, simple device structure, and high work efficiency. Effect

Active Publication Date: 2017-11-24
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, dielectric metamaterial phase control devices mostly use silicon nanoparticles, and their working wavelength is limited below 300THz; some devices using wide-bandgap dielectric materials such as titanium oxide can work in the visible light band, but their structural aspect ratio is too large , the preparation is extremely difficult, the cost is extremely high, and it is difficult to popularize
The Huygens metasurface phase modulation device based on metal materials is composed of multi-layer metal nanostructures, and its efficiency has been greatly improved compared with the phase modulation devices of the early single-layer ultra-thin metal nanostructures, but the current highest efficiency is still 40%. Below, and the preparation process of multilayer metal nanostructure is complex and costly

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Spatial beam phase regulation device
  • Spatial beam phase regulation device
  • Spatial beam phase regulation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are well known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints.

[0033] The invention provides a space light beam phase control device. Such as figure 1 as shown, figure 1 It is a sectional view of a space beam phase contr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a spatial beam phase regulation device. The spatial beam phase regulation device is characterized in that a Fabry Perot resonant cavity is utilized to realize phase regulation of any degree between 0 to 360 DEG for the incident light; a dielectric substrate and a dielectric coating layer are utilized to provide protection and impedance match for a phase regulation layer; and different resonant cavity width in a periodicity array is used to generate different phase time-delay for the transmitted light to realize spatial beam phase regulation. The spatial beam phase regulation device utilizes Fabry Perot resonance in the thick metal meta-material particle periodicity array to realize phase regulation of the spatial beam, and has the advantages of large phase regulation range, high work efficiency, wide suitable wave band and simple device structure which is easy to prepare.

Description

technical field [0001] The invention relates to a control device, in particular to a space light beam phase control device. Background technique [0002] Metamaterial phase control technology has a wide range of applications in super-resolution imaging, subwavelength focusing, planar prisms, beam pointing, anomalous reflection and refraction, optical vortex generation, and optical polarization state control. Most of the early metal metamaterial phase control devices are composed of single-layer ultrathin metal nanostructures. The transmitted light phase can be effectively adjusted by changing the shape, size and arrangement of nanostructure units. However, this type of metamaterial phase control device based on a single-layer ultra-thin metal nanostructure cannot effectively suppress the reflection and absorption of the metal structure, so its efficiency is very low. [0003] The Huygens metasurfaces emerging in recent years have greatly improved the efficiency of metamate...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/00G02B26/06
CPCG02B1/002G02B26/06
Inventor 韦欣胡晓斌宋国峰李健
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap