Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Terahertz wave emitter with actively adjustable intensity and polarization

A transmitter and polarization technology, applied in the field of terahertz optoelectronic devices, can solve the problems that cannot fully meet the application requirements, and cannot actively control the polarization and intensity of terahertz waves

Pending Publication Date: 2019-05-28
UNIV OF SCI & TECH OF CHINA
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in these devices, the polarization and intensity of terahertz waves cannot be actively regulated at the same time, which cannot fully meet the actual application requirements.

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
  • Terahertz wave emitter with actively adjustable intensity and polarization
  • Terahertz wave emitter with actively adjustable intensity and polarization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0033] In order to make the above objectives, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] reference figure 1 , figure 1 It is a schematic structural diagram of a terahertz wave transmitter with actively adjustable intensity and polarization according to an embodi...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a terahertz wave emitter with actively adjustable intensity and polarization. The terahertz wave emitter comprises a ferroelectric layer; a conducting layer which is arranged on one side of the ferroelectric layer; a ferromagnetic metal film which is arranged on one side, deviating from the conductive layer, of the ferroelectric layer; a non-ferromagnetic metal film which is arranged on one side, deviating from the ferroelectric layer, of the ferromagnetic metal film; a magnetic field device which is used for applying a magnetic field which is parallel to the ferromagnetic metal film in the horizontal direction to the ferromagnetic metal film, wherein the direction of the magnetic field is adjustable; one end of the voltage device is connected with the conductive layer, and the other end is connected with the non-ferromagnetic metal film. The femtosecond laser source is used for emitting femtosecond laser, the femtosecond laser sequentially penetrates through the conductive layer, the ferroelectric layer, the ferromagnetic metal film and the non-ferromagnetic metal film in the direction perpendicular to the conductive layer, and terahertz waves with adjustable intensity and polarization are generated under the control of the magnetic field device and the voltage device. The terahertz wave emitter is low in production cost, the polarization intensity canbe flexibly controlled, and practical application is facilitated.

Description

Technical field [0001] The invention relates to the technical field of terahertz optoelectronic devices, and more specifically, to a terahertz wave transmitter with active adjustable intensity and polarization. Background technique [0002] Terahertz wave (THz) generally refers to electromagnetic waves with a frequency in the range of 0.1THz-10THz. In this frequency band, it is neither completely suitable for research by optical theory, nor completely suitable for processing by microwave theory. Therefore, for a long period of time, people are The understanding of the THz band is very limited, and it is called the terahertz "blank" area. [0003] In recent years, with the development of modern technology and the efforts of researchers from various countries, THz technology has developed rapidly. The unique time-domain pulse characteristics, low energy and broadband characteristics of THz waves can provide materials science, quantum information, medical diagnosis, astronomy, and env...

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
IPC IPC(8): H01S1/02
Inventor 陆亚林黄秋萍王建林程浩傅正平杨萌萌黄浩亮何泓川
Owner UNIV OF SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com